Totally stable optimizations that wont cause any problems at all.

src/main/java/com/volmit/iris/util/AtomicAverage.java

@@ -28,7 +28,7 @@ import com.google.common.util.concurrent.AtomicDoubleArray;
  * @author cyberpwn
  */
 public class AtomicAverage {
-    protected AtomicDoubleArray values;
+    protected final AtomicDoubleArray values;
     private double average;
     private double lastSum;
     private boolean dirty;
@@ -71,7 +71,7 @@ public class AtomicAverage {
             lastSum = (lastSum - current) + i;
             values.set(cursor, i);
             cursor = cursor + 1 < size() ? cursor + 1 : 0;
-        } catch (Throwable e) {
+        } catch (Throwable ignored) {
 
         }
     }

src/main/java/com/volmit/iris/util/Average.java

@@ -26,7 +26,7 @@ package com.volmit.iris.util;
  * @author cyberpwn
  */
 public class Average {
-    protected double[] values;
+    protected final double[] values;
     private double average;
     private double lastSum;
     private boolean dirty;

src/main/java/com/volmit/iris/util/B.java

@@ -140,7 +140,7 @@ public class B {
             BlockData bx = Bukkit.createBlockData(ix);
             blockDataCache.put(ix, bx);
             return bx;
-        } catch (Throwable e) {
+        } catch (Throwable ignored) {
 
         }
 
@@ -151,7 +151,7 @@ public class B {
         try {
             BlockData bd = Material.valueOf(i).createBlockData();
             blockDataCache.put(ix, bd);
-        } catch (Throwable e) {
+        } catch (Throwable ignored) {
 
         }
 
@@ -485,7 +485,7 @@ public class B {
 
 
     public static String[] getBlockTypes() {
-        KList<String> bt = new KList<String>();
+        KList<String> bt = new KList<>();
 
         for (Material i : Material.values()) {
             if (i.isBlock()) {
@@ -503,17 +503,17 @@ public class B {
             }
         }
 
-        return bt.toArray(new String[bt.size()]);
+        return bt.toArray(new String[0]);
     }
 
     public static String[] getItemTypes() {
-        KList<String> bt = new KList<String>();
+        KList<String> bt = new KList<>();
 
         for (Material i : Material.values()) {
             String v = i.name().toLowerCase().trim();
             bt.add(v);
         }
 
-        return bt.toArray(new String[bt.size()]);
+        return bt.toArray(new String[0]);
     }
 }

src/main/java/com/volmit/iris/util/BlockPosition.java

@@ -53,8 +53,7 @@ public class BlockPosition {
             return false;
         }
 
-        if (o instanceof BlockPosition) {
-            BlockPosition ot = (BlockPosition) o;
+        if (o instanceof BlockPosition ot) {
 
             return ot.x == x && ot.y == y && ot.z == z;
         }
@@ -85,7 +84,7 @@ public class BlockPosition {
     public static long toLong(int x, int y, int z) {
         long var3 = 0L;
         var3 |= (x & m4) << m3;
-        var3 |= (y & m5) << 0L;
+        var3 |= (y & m5);
         var3 |= (z & m6) << m2;
         return var3;
     }

src/main/java/com/volmit/iris/util/Board.java

@@ -127,12 +127,8 @@ public class Board {
             team.setSuffix(entry.getSuffix());
 
             switch (boardSettings.getScoreDirection()) {
-                case UP:
-                    objective.getScore(team.getName()).setScore(1 + i);
-                    break;
-                case DOWN:
-                    objective.getScore(team.getName()).setScore(15 - i);
-                    break;
+                case UP -> objective.getScore(team.getName()).setScore(1 + i);
+                case DOWN -> objective.getScore(team.getName()).setScore(15 - i);
             }
         }
     }

src/main/java/com/volmit/iris/util/BoardEntry.java

@@ -25,6 +25,7 @@ import org.apache.commons.lang.StringUtils;
  * @author Missionary (missionarymc@gmail.com)
  * @since 3/29/2018
  */
+@SuppressWarnings("ClassCanBeRecord")
 public class BoardEntry {
 
     @Getter

src/main/java/com/volmit/iris/util/BoardSettings.java

@@ -22,6 +22,7 @@ import lombok.Builder;
 import lombok.Getter;
 
 
+@SuppressWarnings("ClassCanBeRecord")
 @Getter
 @Builder
 public class BoardSettings {

src/main/java/com/volmit/iris/util/C.java

@@ -245,11 +245,12 @@ public enum C {
     private final char code;
     private final boolean isFormat;
     private final String toString;
-    private final static Map<Integer, C> BY_ID = new HashMap<Integer, C>();
-    private final static Map<Character, C> BY_CHAR = new HashMap<Character, C>();
-    private final static Map<DyeColor, C> dyeChatMap = new HashMap<DyeColor, C>();
-    private final static Map<C, String> chatHexMap = new HashMap<C, String>();
-    private final static Map<DyeColor, String> dyeHexMap = new HashMap<DyeColor, String>();
+    @SuppressWarnings("MismatchedQueryAndUpdateOfCollection")
+    private final static Map<Integer, C> BY_ID = new HashMap<>();
+    private final static Map<Character, C> BY_CHAR = new HashMap<>();
+    private final static Map<DyeColor, C> dyeChatMap = new HashMap<>();
+    private final static Map<C, String> chatHexMap = new HashMap<>();
+    private final static Map<DyeColor, String> dyeHexMap = new HashMap<>();
 
     static {
         chatHexMap.put(C.BLACK, "#000");
@@ -334,7 +335,6 @@ public enum C {
     /**
      * get the dye color for the chatcolor
      *
-     * @return
      */
     public DyeColor dye() {
         return chatToDye(chatColor());
@@ -424,9 +424,9 @@ public enum C {
     }
 
     public static DyeColor chatToDye(ChatColor color) {
-        for (DyeColor i : dyeChatMap.keySet()) {
-            if (dyeChatMap.get(i).toString().equals(color.toString())) {
-                return i;
+        for (Map.Entry<DyeColor, C> entry : dyeChatMap.entrySet()) {
+            if (entry.getValue().toString().equals(color.toString())) {
+                return entry.getKey();
             }
         }
 
@@ -455,7 +455,7 @@ public enum C {
             hex = hex.substring(1);
         }
 
-        if (hex.indexOf("x") != -1) {
+        if (hex.contains("x")) {
             hex = hex.substring(hex.indexOf("x"));
         }
 
@@ -509,7 +509,6 @@ public enum C {
     /**
      * Get the ChatColor enum instance instead of C
      *
-     * @return
      */
     public ChatColor chatColor() {
         return ChatColor.getByChar(code);
@@ -551,105 +550,43 @@ public enum C {
     }
 
     public byte getMeta() {
-        switch (this) {
-            case AQUA:
-                return 11;
-            case BLACK:
-                return 0;
-            case BLUE:
-                return 9;
-            case BOLD:
-                return -1;
-            case DARK_AQUA:
-                return 9;
-            case DARK_BLUE:
-                return 1;
-            case DARK_GRAY:
-                return 8;
-            case DARK_GREEN:
-                return 2;
-            case DARK_PURPLE:
-                return 5;
-            case DARK_RED:
-                return 4;
-            case GOLD:
-                return 6;
-            case GRAY:
-                return 7;
-            case GREEN:
-                return 10;
-            case ITALIC:
-                return -1;
-            case LIGHT_PURPLE:
-                return 13;
-            case MAGIC:
-                return -1;
-            case RED:
-                return 12;
-            case RESET:
-                return -1;
-            case STRIKETHROUGH:
-                return -1;
-            case UNDERLINE:
-                return -1;
-            case WHITE:
-                return 15;
-            case YELLOW:
-                return 14;
-            default:
-                return -1;
-        }
+        return switch (this) {
+            case AQUA -> (byte)11;
+            case BLACK -> (byte)0;
+            case BLUE, DARK_AQUA -> (byte)9;
+            case BOLD, UNDERLINE, STRIKETHROUGH, RESET, MAGIC, ITALIC -> (byte)-1;
+            case DARK_BLUE -> (byte)1;
+            case DARK_GRAY -> (byte)8;
+            case DARK_GREEN -> (byte)2;
+            case DARK_PURPLE -> (byte)5;
+            case DARK_RED -> (byte)4;
+            case GOLD -> (byte)6;
+            case GRAY -> (byte)7;
+            case GREEN -> (byte)10;
+            case LIGHT_PURPLE -> (byte)13;
+            case RED -> (byte)12;
+            case WHITE -> (byte)15;
+            case YELLOW -> (byte)14;
+        };
     }
 
     public byte getItemMeta() {
-        switch (this) {
-            case AQUA:
-                return 9;
-            case BLACK:
-                return 15;
-            case BLUE:
-                return 3;
-            case BOLD:
-                return -1;
-            case DARK_AQUA:
-                return 9;
-            case DARK_BLUE:
-                return 11;
-            case DARK_GRAY:
-                return 7;
-            case DARK_GREEN:
-                return 13;
-            case DARK_PURPLE:
-                return 10;
-            case DARK_RED:
-                return 14;
-            case GOLD:
-                return 4;
-            case GRAY:
-                return 8;
-            case GREEN:
-                return 5;
-            case ITALIC:
-                return -1;
-            case LIGHT_PURPLE:
-                return 2;
-            case MAGIC:
-                return -1;
-            case RED:
-                return 14;
-            case RESET:
-                return -1;
-            case STRIKETHROUGH:
-                return -1;
-            case UNDERLINE:
-                return -1;
-            case WHITE:
-                return 0;
-            case YELLOW:
-                return 4;
-            default:
-                return -1;
-        }
+        return switch (this) {
+            case AQUA, DARK_AQUA -> (byte)9;
+            case BLACK -> (byte)15;
+            case BLUE -> (byte)3;
+            case BOLD, UNDERLINE, RESET, STRIKETHROUGH, MAGIC, ITALIC -> (byte)-1;
+            case DARK_BLUE -> (byte)11;
+            case DARK_GRAY -> (byte)7;
+            case DARK_GREEN -> (byte)13;
+            case DARK_PURPLE -> (byte)10;
+            case DARK_RED, RED -> (byte)14;
+            case GOLD, YELLOW -> (byte)4;
+            case GRAY -> (byte)8;
+            case GREEN -> (byte)5;
+            case LIGHT_PURPLE -> (byte)2;
+            case WHITE -> (byte)0;
+        };
     }
 
     public static C randomColor() {
@@ -663,7 +600,7 @@ public enum C {
      * @return Any remaining ChatColors to pass onto the next line.
      */
     public static String getLastColors(String input) {
-        String result = "";
+        StringBuilder result = new StringBuilder();
         int length = input.length();
 
         // Search backwards from the end as it is faster
@@ -674,7 +611,7 @@ public enum C {
                 C color = getByChar(c);
 
                 if (color != null) {
-                    result = color + result;
+                    result.insert(0, color);
 
                     // Once we find a color or reset we can stop searching
                     if (color.isColor() || color.equals(RESET)) {
@@ -684,7 +621,7 @@ public enum C {
             }
         }
 
-        return result;
+        return result.toString();
     }
 
     static {

src/main/java/com/volmit/iris/util/CDou.java

@@ -18,6 +18,7 @@
 
 package com.volmit.iris.util;
 
+@SuppressWarnings("ALL")
 public class CDou {
     private double number;
     private final double max;

src/main/java/com/volmit/iris/util/CarveResult.java

@@ -20,9 +20,12 @@ package com.volmit.iris.util;
 
 import lombok.Value;
 
+@SuppressWarnings("ClassCanBeRecord")
 @Value
 public class CarveResult {
+    @SuppressWarnings("RedundantModifiersValueLombok")
     private final int surface;
+    @SuppressWarnings("RedundantModifiersValueLombok")
     private final int ceiling;
 
     public int getHeight() {

src/main/java/com/volmit/iris/util/ChunkPosition.java

@@ -57,10 +57,9 @@ public class ChunkPosition {
         if (this == obj) {
             return true;
         }
-        if (!(obj instanceof ChunkPosition)) {
+        if (!(obj instanceof ChunkPosition other)) {
             return false;
         }
-        ChunkPosition other = (ChunkPosition) obj;
         return x == other.x && z == other.z;
     }
 

src/main/java/com/volmit/iris/util/Chunker.java

@@ -45,14 +45,14 @@ public class Chunker<T> {
 
     public void execute(Consumer<T> consumer, Callback<Double> progress, int progressInterval) {
         ChronoLatch cl = new ChronoLatch(progressInterval);
-        Contained<Integer> consumed = new Contained<Integer>(0);
+        Contained<Integer> consumed = new Contained<>(0);
         executor = Executors.newFixedThreadPool(threads);
         int length = q.size();
         int remaining = length;
 
         while (remaining > 0) {
             int at = remaining;
-            remaining -= (remaining > workload ? workload : remaining);
+            remaining -= (Math.min(remaining, workload));
             int to = remaining;
 
             executor.submit(() ->

src/main/java/com/volmit/iris/util/CompoundTag.java

@@ -56,9 +56,9 @@ public final class CompoundTag extends Tag {
             append = "(\"" + this.getName() + "\")";
         }
         StringBuilder bldr = new StringBuilder();
-        bldr.append("TAG_Compound" + append + ": " + value.size() + " entries\r\n{\r\n");
+        bldr.append("TAG_Compound").append(append).append(": ").append(value.size()).append(" entries\r\n{\r\n");
         for (Map.Entry<String, Tag> entry : value.entrySet()) {
-            bldr.append("   " + entry.getValue().toString().replaceAll("\r\n", "\r\n   ") + "\r\n");
+            bldr.append("   ").append(entry.getValue().toString().replaceAll("\r\n", "\r\n   ")).append("\r\n");
         }
         bldr.append("}");
         return bldr.toString();

src/main/java/com/volmit/iris/util/Consumer2.java

@@ -18,7 +18,7 @@
 
 package com.volmit.iris.util;
 
-@SuppressWarnings("hiding")
+@SuppressWarnings({"hiding", "RedundantSuppression"})
 @FunctionalInterface
 public interface Consumer2<A, B> {
     void accept(A a, B b);

src/main/java/com/volmit/iris/util/Consumer3.java

@@ -18,7 +18,7 @@
 
 package com.volmit.iris.util;
 
-@SuppressWarnings("hiding")
+@SuppressWarnings("ALL")
 @FunctionalInterface
 public interface Consumer3<A, B, C> {
     void accept(A a, B b, C c);

src/main/java/com/volmit/iris/util/Consumer4.java

@@ -18,7 +18,6 @@
 
 package com.volmit.iris.util;
 
-@SuppressWarnings("hiding")
 @FunctionalInterface
 public interface Consumer4<A, B, C, D> {
     void accept(A a, B b, C c, D d);

src/main/java/com/volmit/iris/util/Consumer5.java

@@ -18,7 +18,6 @@
 
 package com.volmit.iris.util;
 
-@SuppressWarnings("hiding")
 @FunctionalInterface
 public interface Consumer5<A, B, C, D, E> {
     void accept(A a, B b, C c, D d, E e);

src/main/java/com/volmit/iris/util/Consumer6.java

@@ -18,7 +18,6 @@
 
 package com.volmit.iris.util;
 
-@SuppressWarnings("hiding")
 @FunctionalInterface
 public interface Consumer6<A, B, C, D, E, F> {
     void accept(A a, B b, C c, D d, E e, F f);

src/main/java/com/volmit/iris/util/Consumer7.java

@@ -18,7 +18,6 @@
 
 package com.volmit.iris.util;
 
-@SuppressWarnings("hiding")
 @FunctionalInterface
 public interface Consumer7<A, B, C, D, E, F, G> {
     void accept(A a, B b, C c, D d, E e, F f, G g);

src/main/java/com/volmit/iris/util/Consumer8.java

@@ -18,7 +18,6 @@
 
 package com.volmit.iris.util;
 
-@SuppressWarnings("hiding")
 @FunctionalInterface
 public interface Consumer8<A, B, C, D, E, F, G, H> {
     void accept(A a, B b, C c, D d, E e, F f, G g, H h);

src/main/java/com/volmit/iris/util/Controller.java

@@ -29,7 +29,7 @@ public abstract class Controller implements IController {
         tickRate = -1;
     }
 
-    protected void setTickRate(int rate) {
+    protected void setTickRate(@SuppressWarnings("SameParameterValue") int rate) {
         this.tickRate = rate;
     }
 

src/main/java/com/volmit/iris/util/Converter.java

@@ -23,6 +23,7 @@ import java.io.File;
 public interface Converter {
     String getInExtension();
 
+    @SuppressWarnings("SameReturnValue")
     String getOutExtension();
 
     void convert(File in, File out);

src/main/java/com/volmit/iris/util/Cuboid.java

@@ -22,6 +22,7 @@ import org.bukkit.*;
 import org.bukkit.block.Block;
 import org.bukkit.configuration.serialization.ConfigurationSerializable;
 import org.bukkit.entity.Entity;
+import org.jetbrains.annotations.NotNull;
 
 import java.util.*;
 
@@ -57,7 +58,7 @@ public class Cuboid implements Iterable<Block>, Cloneable, ConfigurationSerializ
     }
 
     public KList<Entity> getEntities() {
-        KList<Entity> en = new KList<Entity>();
+        KList<Entity> en = new KList<>();
 
         for (Chunk i : getChunks()) {
             for (Entity j : i.getEntities()) {
@@ -155,9 +156,10 @@ public class Cuboid implements Iterable<Block>, Cloneable, ConfigurationSerializ
         z2 = (Integer) map.get("z2");
     }
 
+    @NotNull
     @Override
     public Map<String, Object> serialize() {
-        Map<String, Object> map = new HashMap<String, Object>();
+        Map<String, Object> map = new HashMap<>();
         map.put("worldName", worldName);
         map.put("x1", x1);
         map.put("y1", y1);
@@ -337,22 +339,15 @@ public class Cuboid implements Iterable<Block>, Cloneable, ConfigurationSerializ
      * @return a new Cuboid expanded by the given direction and amount
      */
     public Cuboid expand(CuboidDirection dir, int amount) {
-        switch (dir) {
-            case North:
-                return new Cuboid(worldName, x1 - amount, y1, z1, x2, y2, z2);
-            case South:
-                return new Cuboid(worldName, x1, y1, z1, x2 + amount, y2, z2);
-            case East:
-                return new Cuboid(worldName, x1, y1, z1 - amount, x2, y2, z2);
-            case West:
-                return new Cuboid(worldName, x1, y1, z1, x2, y2, z2 + amount);
-            case Down:
-                return new Cuboid(worldName, x1, y1 - amount, z1, x2, y2, z2);
-            case Up:
-                return new Cuboid(worldName, x1, y1, z1, x2, y2 + amount, z2);
-            default:
-                throw new IllegalArgumentException("invalid direction " + dir);
-        }
+        return switch (dir) {
+            case North -> new Cuboid(worldName, x1 - amount, y1, z1, x2, y2, z2);
+            case South -> new Cuboid(worldName, x1, y1, z1, x2 + amount, y2, z2);
+            case East -> new Cuboid(worldName, x1, y1, z1 - amount, x2, y2, z2);
+            case West -> new Cuboid(worldName, x1, y1, z1, x2, y2, z2 + amount);
+            case Down -> new Cuboid(worldName, x1, y1 - amount, z1, x2, y2, z2);
+            case Up -> new Cuboid(worldName, x1, y1, z1, x2, y2 + amount, z2);
+            default -> throw new IllegalArgumentException("invalid direction " + dir);
+        };
     }
 
     public Cuboid expand(Direction dir, int amount) {
@@ -385,20 +380,12 @@ public class Cuboid implements Iterable<Block>, Cloneable, ConfigurationSerializ
      * @return a new Cuboid outset by the given direction and amount
      */
     public Cuboid outset(CuboidDirection dir, int amount) {
-        Cuboid c;
-        switch (dir) {
-            case Horizontal:
-                c = expand(CuboidDirection.North, amount).expand(CuboidDirection.South, amount).expand(CuboidDirection.East, amount).expand(CuboidDirection.West, amount);
-                break;
-            case Vertical:
-                c = expand(CuboidDirection.Down, amount).expand(CuboidDirection.Up, amount);
-                break;
-            case Both:
-                c = outset(CuboidDirection.Horizontal, amount).outset(CuboidDirection.Vertical, amount);
-                break;
-            default:
-                throw new IllegalArgumentException("invalid direction " + dir);
-        }
+        Cuboid c = switch (dir) {
+            case Horizontal -> expand(CuboidDirection.North, amount).expand(CuboidDirection.South, amount).expand(CuboidDirection.East, amount).expand(CuboidDirection.West, amount);
+            case Vertical -> expand(CuboidDirection.Down, amount).expand(CuboidDirection.Up, amount);
+            case Both -> outset(CuboidDirection.Horizontal, amount).outset(CuboidDirection.Vertical, amount);
+            default -> throw new IllegalArgumentException("invalid direction " + dir);
+        };
         return c;
     }
 
@@ -495,38 +482,43 @@ public class Cuboid implements Iterable<Block>, Cloneable, ConfigurationSerializ
     public Cuboid contract(CuboidDirection dir) {
         Cuboid face = getFace(dir.opposite());
         switch (dir) {
-            case Down:
+            case Down -> {
                 while (face.containsOnly(Material.AIR) && face.getLowerY() > this.getLowerY()) {
                     face = face.shift(CuboidDirection.Down, 1);
                 }
                 return new Cuboid(worldName, x1, y1, z1, x2, face.getUpperY(), z2);
-            case Up:
+            }
+            case Up -> {
                 while (face.containsOnly(Material.AIR) && face.getUpperY() < this.getUpperY()) {
                     face = face.shift(CuboidDirection.Up, 1);
                 }
                 return new Cuboid(worldName, x1, face.getLowerY(), z1, x2, y2, z2);
-            case North:
+            }
+            case North -> {
                 while (face.containsOnly(Material.AIR) && face.getLowerX() > this.getLowerX()) {
                     face = face.shift(CuboidDirection.North, 1);
                 }
                 return new Cuboid(worldName, x1, y1, z1, face.getUpperX(), y2, z2);
-            case South:
+            }
+            case South -> {
                 while (face.containsOnly(Material.AIR) && face.getUpperX() < this.getUpperX()) {
                     face = face.shift(CuboidDirection.South, 1);
                 }
                 return new Cuboid(worldName, face.getLowerX(), y1, z1, x2, y2, z2);
-            case East:
+            }
+            case East -> {
                 while (face.containsOnly(Material.AIR) && face.getLowerZ() > this.getLowerZ()) {
                     face = face.shift(CuboidDirection.East, 1);
                 }
                 return new Cuboid(worldName, x1, y1, z1, x2, y2, face.getUpperZ());
-            case West:
+            }
+            case West -> {
                 while (face.containsOnly(Material.AIR) && face.getUpperZ() < this.getUpperZ()) {
                     face = face.shift(CuboidDirection.West, 1);
                 }
                 return new Cuboid(worldName, x1, y1, face.getLowerZ(), x2, y2, z2);
-            default:
-                throw new IllegalArgumentException("Invalid direction " + dir);
+            }
+            default -> throw new IllegalArgumentException("Invalid direction " + dir);
         }
     }
 
@@ -538,22 +530,15 @@ public class Cuboid implements Iterable<Block>, Cloneable, ConfigurationSerializ
      * @return the Cuboid representing this Cuboid's requested face
      */
     public Cuboid getFace(CuboidDirection dir) {
-        switch (dir) {
-            case Down:
-                return new Cuboid(worldName, x1, y1, z1, x2, y1, z2);
-            case Up:
-                return new Cuboid(worldName, x1, y2, z1, x2, y2, z2);
-            case North:
-                return new Cuboid(worldName, x1, y1, z1, x1, y2, z2);
-            case South:
-                return new Cuboid(worldName, x2, y1, z1, x2, y2, z2);
-            case East:
-                return new Cuboid(worldName, x1, y1, z1, x2, y2, z1);
-            case West:
-                return new Cuboid(worldName, x1, y1, z2, x2, y2, z2);
-            default:
-                throw new IllegalArgumentException("Invalid direction " + dir);
-        }
+        return switch (dir) {
+            case Down -> new Cuboid(worldName, x1, y1, z1, x2, y1, z2);
+            case Up -> new Cuboid(worldName, x1, y2, z1, x2, y2, z2);
+            case North -> new Cuboid(worldName, x1, y1, z1, x1, y2, z2);
+            case South -> new Cuboid(worldName, x2, y1, z1, x2, y2, z2);
+            case East -> new Cuboid(worldName, x1, y1, z1, x2, y2, z1);
+            case West -> new Cuboid(worldName, x1, y1, z2, x2, y2, z2);
+            default -> throw new IllegalArgumentException("Invalid direction " + dir);
+        };
     }
 
     /**
@@ -626,7 +611,7 @@ public class Cuboid implements Iterable<Block>, Cloneable, ConfigurationSerializ
      * @return a list of Chunk objects
      */
     public List<Chunk> getChunks() {
-        List<Chunk> res = new ArrayList<Chunk>();
+        List<Chunk> res = new ArrayList<>();
 
         World w = getWorld();
         int x1 = getLowerX() & ~0xf;
@@ -641,11 +626,11 @@ public class Cuboid implements Iterable<Block>, Cloneable, ConfigurationSerializ
         return res;
     }
 
-    /**
-     * Set all the blocks within the Cuboid to the given MaterialData, using a
-     * MassBlockUpdate object for fast updates.
-     *
-     * @param mat
+    /*
+      Set all the blocks within the Cuboid to the given MaterialData, using a
+      MassBlockUpdate object for fast updates.
+
+      @param mat
      *            the MaterialData to set
      * @param mbu
      *            the MassBlockUpdate object
@@ -670,8 +655,9 @@ public class Cuboid implements Iterable<Block>, Cloneable, ConfigurationSerializ
      *
      * @see java.lang.Object#clone()
      */
+    @SuppressWarnings("MethodDoesntCallSuperMethod")
     @Override
-    public Cuboid clone() throws CloneNotSupportedException {
+    public Cuboid clone() {
         return new Cuboid(this);
     }
 
@@ -685,7 +671,7 @@ public class Cuboid implements Iterable<Block>, Cloneable, ConfigurationSerializ
         return "Cuboid: " + worldName + "," + x1 + "," + y1 + "," + z1 + "=>" + x2 + "," + y2 + "," + z2;
     }
 
-    public class CuboidIterator implements Iterator<Block> {
+    public static class CuboidIterator implements Iterator<Block> {
         private final World w;
         private final int baseX;
         private final int baseY;
@@ -744,28 +730,18 @@ public class Cuboid implements Iterable<Block>, Cloneable, ConfigurationSerializ
         Unknown;
 
         public CuboidDirection opposite() {
-            switch (this) {
-                case North:
-                    return South;
-                case East:
-                    return West;
-                case South:
-                    return North;
-                case West:
-                    return East;
-                case Horizontal:
-                    return Vertical;
-                case Vertical:
-                    return Horizontal;
-                case Up:
-                    return Down;
-                case Down:
-                    return Up;
-                case Both:
-                    return Both;
-                default:
-                    return Unknown;
-            }
+            return switch (this) {
+                case North -> South;
+                case East -> West;
+                case South -> North;
+                case West -> East;
+                case Horizontal -> Vertical;
+                case Vertical -> Horizontal;
+                case Up -> Down;
+                case Down -> Up;
+                case Both -> Both;
+                default -> Unknown;
+            };
         }
     }
 

src/main/java/com/volmit/iris/util/DataPalette.java

@@ -37,9 +37,9 @@ public abstract class DataPalette<T> implements Writable {
         getPaletteId(defaultValue);
     }
 
-    public abstract T readType(DataInputStream i) throws IOException;
+    public abstract T readType(DataInputStream i);
 
-    public abstract void writeType(T t, DataOutputStream o) throws IOException;
+    public abstract void writeType(T t, DataOutputStream o);
 
     @Override
     public void write(DataOutputStream o) throws IOException {

src/main/java/com/volmit/iris/util/Direction.java

@@ -23,6 +23,8 @@ import org.bukkit.Axis;
 import org.bukkit.block.BlockFace;
 import org.bukkit.util.Vector;
 
+import java.util.Map;
+
 /**
  * Directions
  *
@@ -44,68 +46,28 @@ public enum Direction {
     private final CuboidDirection f;
 
     public static Direction getDirection(BlockFace f) {
-        switch (f) {
-            case DOWN:
-                return D;
-            case EAST:
-                return E;
-            case EAST_NORTH_EAST:
-                return E;
-            case EAST_SOUTH_EAST:
-                return E;
-            case NORTH:
-                return N;
-            case NORTH_EAST:
-                return N;
-            case NORTH_NORTH_EAST:
-                return N;
-            case NORTH_NORTH_WEST:
-                return N;
-            case NORTH_WEST:
-                return N;
-            case SELF:
-                return U;
-            case SOUTH:
-                return S;
-            case SOUTH_EAST:
-                return S;
-            case SOUTH_SOUTH_EAST:
-                return S;
-            case SOUTH_SOUTH_WEST:
-                return S;
-            case SOUTH_WEST:
-                return S;
-            case UP:
-                return U;
-            case WEST:
-                return W;
-            case WEST_NORTH_WEST:
-                return W;
-            case WEST_SOUTH_WEST:
-                return W;
-        }
+        return switch (f) {
+            case DOWN -> D;
+            case EAST, EAST_SOUTH_EAST, EAST_NORTH_EAST -> E;
+            case NORTH, NORTH_WEST, NORTH_NORTH_WEST, NORTH_NORTH_EAST, NORTH_EAST -> N;
+            case SELF, UP -> U;
+            case SOUTH, SOUTH_WEST, SOUTH_SOUTH_WEST, SOUTH_SOUTH_EAST, SOUTH_EAST -> S;
+            case WEST, WEST_SOUTH_WEST, WEST_NORTH_WEST -> W;
+        };
 
-        return D;
     }
 
     @Override
     public String toString() {
-        switch (this) {
-            case D:
-                return "Down";
-            case E:
-                return "East";
-            case N:
-                return "North";
-            case S:
-                return "South";
-            case U:
-                return "Up";
-            case W:
-                return "West";
-        }
+        return switch (this) {
+            case D -> "Down";
+            case E -> "East";
+            case N -> "North";
+            case S -> "South";
+            case U -> "Up";
+            case W -> "West";
+        };
 
-        return "?";
     }
 
     public boolean isVertical() {
@@ -185,9 +147,10 @@ public enum Direction {
     public Vector angle(Vector initial, Direction d) {
         calculatePermutations();
 
-        for (GBiset<Direction, Direction> i : permute.keySet()) {
+        for (Map.Entry<GBiset<Direction, Direction>, DOP> entry : permute.entrySet()) {
+            GBiset<Direction, Direction> i = entry.getKey();
             if (i.getA().equals(this) && i.getB().equals(d)) {
-                return permute.get(i).op(initial);
+                return entry.getValue().op(initial);
             }
         }
 
@@ -310,11 +273,11 @@ public enum Direction {
             return;
         }
 
-        permute = new KMap<GBiset<Direction, Direction>, DOP>();
+        permute = new KMap<>();
 
         for (Direction i : udnews()) {
             for (Direction j : udnews()) {
-                GBiset<Direction, Direction> b = new GBiset<Direction, Direction>(i, j);
+                GBiset<Direction, Direction> b = new GBiset<>(i, j);
 
                 if (i.equals(j)) {
                     permute.put(b, new DOP("DIRECT") {
@@ -394,40 +357,23 @@ public enum Direction {
     }
 
     public BlockFace getFace() {
-        switch (this) {
-            case D:
-                return BlockFace.DOWN;
-            case E:
-                return BlockFace.EAST;
-            case N:
-                return BlockFace.NORTH;
-            case S:
-                return BlockFace.SOUTH;
-            case U:
-                return BlockFace.UP;
-            case W:
-                return BlockFace.WEST;
-        }
+        return switch (this) {
+            case D -> BlockFace.DOWN;
+            case E -> BlockFace.EAST;
+            case N -> BlockFace.NORTH;
+            case S -> BlockFace.SOUTH;
+            case U -> BlockFace.UP;
+            case W -> BlockFace.WEST;
+        };
 
-        return null;
     }
 
     public Axis getAxis() {
-        switch (this) {
-            case D:
-                return Axis.Y;
-            case E:
-                return Axis.X;
-            case N:
-                return Axis.Z;
-            case S:
-                return Axis.Z;
-            case U:
-                return Axis.Y;
-            case W:
-                return Axis.X;
-        }
+        return switch (this) {
+            case D, U -> Axis.Y;
+            case E, W -> Axis.X;
+            case N, S -> Axis.Z;
+        };
 
-        return null;
     }
 }

src/main/java/com/volmit/iris/util/DoubleArrayUtils.java

@@ -25,9 +25,7 @@ import java.util.Arrays;
 
 public class DoubleArrayUtils {
     public static void shiftRight(double[] values, double push) {
-        for (int index = values.length - 2; index >= 0; index--) {
-            values[index + 1] = values[index];
-        }
+        if (values.length - 2 + 1 >= 0) System.arraycopy(values, 0, values, 1, values.length - 2 + 1);
 
         values[0] = push;
     }

src/main/java/com/volmit/iris/util/Element.java

@@ -20,6 +20,7 @@ package com.volmit.iris.util;
 
 import org.bukkit.inventory.ItemStack;
 
+@SuppressWarnings("ALL")
 public interface Element {
     MaterialBlock getMaterial();
 

src/main/java/com/volmit/iris/util/FakeWorld.java

@@ -64,10 +64,11 @@ public class FakeWorld implements World {
     }
 
     @Override
-    public void sendPluginMessage(Plugin source, String channel, byte[] message) {
+    public void sendPluginMessage(@NotNull Plugin source, @NotNull String channel, @NotNull byte[] message) {
 
     }
 
+    @NotNull
     @Override
     public Set<String> getListeningPluginChannels() {
 
@@ -75,35 +76,38 @@ public class FakeWorld implements World {
     }
 
     @Override
-    public void setMetadata(String metadataKey, MetadataValue newMetadataValue) {
+    public void setMetadata(@NotNull String metadataKey, @NotNull MetadataValue newMetadataValue) {
 
     }
 
+    @NotNull
     @Override
-    public List<MetadataValue> getMetadata(String metadataKey) {
+    public List<MetadataValue> getMetadata(@NotNull String metadataKey) {
 
         return null;
     }
 
     @Override
-    public boolean hasMetadata(String metadataKey) {
+    public boolean hasMetadata(@NotNull String metadataKey) {
 
         return false;
     }
 
     @Override
-    public void removeMetadata(String metadataKey, Plugin owningPlugin) {
+    public void removeMetadata(@NotNull String metadataKey, @NotNull Plugin owningPlugin) {
 
     }
 
+    @NotNull
     @Override
     public Block getBlockAt(int x, int y, int z) {
 
         return null;
     }
 
+    @NotNull
     @Override
-    public Block getBlockAt(Location location) {
+    public Block getBlockAt(@NotNull Location location) {
 
         return null;
     }
@@ -115,71 +119,79 @@ public class FakeWorld implements World {
     }
 
     @Override
-    public int getHighestBlockYAt(Location location) {
+    public int getHighestBlockYAt(@NotNull Location location) {
 
         return 0;
     }
 
+    @NotNull
     @Override
     public Block getHighestBlockAt(int x, int z) {
 
         return null;
     }
 
+    @NotNull
     @Override
-    public Block getHighestBlockAt(Location location) {
+    public Block getHighestBlockAt(@NotNull Location location) {
 
         return null;
     }
 
     @Override
-    public int getHighestBlockYAt(int x, int z, HeightMap heightMap) {
+    public int getHighestBlockYAt(int x, int z, @NotNull HeightMap heightMap) {
 
         return 0;
     }
 
     @Override
-    public int getHighestBlockYAt(Location location, HeightMap heightMap) {
+    public int getHighestBlockYAt(@NotNull Location location, @NotNull HeightMap heightMap) {
 
         return 0;
     }
 
+    @NotNull
     @Override
-    public Block getHighestBlockAt(int x, int z, HeightMap heightMap) {
+    public Block getHighestBlockAt(int x, int z, @NotNull HeightMap heightMap) {
 
         return null;
     }
 
+    @NotNull
     @Override
-    public Block getHighestBlockAt(Location location, HeightMap heightMap) {
+    public Block getHighestBlockAt(@NotNull Location location, @NotNull HeightMap heightMap) {
 
         return null;
     }
 
+    @NotNull
     @Override
     public Chunk getChunkAt(int x, int z) {
 
         return null;
     }
 
+    @NotNull
     @Override
-    public Chunk getChunkAt(Location location) {
+    public Chunk getChunkAt(@NotNull Location location) {
+
+        return null;
+    }
+
+    @NotNull
+    @Override
+    public Chunk getChunkAt(@NotNull Block block) {
 
         return null;
     }
 
     @Override
-    public Chunk getChunkAt(Block block) {
-
-        return null;
-    }
-
-    @Override
-    public boolean isChunkLoaded(Chunk chunk) {
+    public boolean isChunkLoaded(@NotNull Chunk chunk) {
 
         return false;
     }
 
+    @NotNull
     @Override
     public Chunk[] getLoadedChunks() {
 
@@ -187,7 +199,7 @@ public class FakeWorld implements World {
     }
 
     @Override
-    public void loadChunk(Chunk chunk) {
+    public void loadChunk(@NotNull Chunk chunk) {
 
     }
 
@@ -221,7 +233,7 @@ public class FakeWorld implements World {
     }
 
     @Override
-    public boolean unloadChunk(Chunk chunk) {
+    public boolean unloadChunk(@NotNull Chunk chunk) {
 
         return false;
     }
@@ -267,6 +279,7 @@ public class FakeWorld implements World {
 
     }
 
+    @NotNull
     @Override
     public Collection<Chunk> getForceLoadedChunks() {
 
@@ -274,36 +287,39 @@ public class FakeWorld implements World {
     }
 
     @Override
-    public boolean addPluginChunkTicket(int x, int z, Plugin plugin) {
+    public boolean addPluginChunkTicket(int x, int z, @NotNull Plugin plugin) {
 
         return false;
     }
 
     @Override
-    public boolean removePluginChunkTicket(int x, int z, Plugin plugin) {
+    public boolean removePluginChunkTicket(int x, int z, @NotNull Plugin plugin) {
 
         return false;
     }
 
     @Override
-    public void removePluginChunkTickets(Plugin plugin) {
+    public void removePluginChunkTickets(@NotNull Plugin plugin) {
 
     }
 
+    @NotNull
     @Override
     public Collection<Plugin> getPluginChunkTickets(int x, int z) {
 
         return null;
     }
 
+    @NotNull
     @Override
     public Map<Plugin, Collection<Chunk>> getPluginChunkTickets() {
 
         return null;
     }
 
+    @NotNull
     @Override
-    public Item dropItem(Location location, ItemStack item) {
+    public Item dropItem(@NotNull Location location, @NotNull ItemStack item) {
 
         return null;
     }
@@ -314,8 +330,9 @@ public class FakeWorld implements World {
         return null;
     }
 
+    @NotNull
     @Override
-    public Item dropItemNaturally(Location location, ItemStack item) {
+    public Item dropItemNaturally(@NotNull Location location, @NotNull ItemStack item) {
 
         return null;
     }
@@ -326,168 +343,187 @@ public class FakeWorld implements World {
         return null;
     }
 
+    @NotNull
     @Override
-    public Arrow spawnArrow(Location location, Vector direction, float speed, float spread) {
+    public Arrow spawnArrow(@NotNull Location location, @NotNull Vector direction, float speed, float spread) {
+
+        return null;
+    }
+
+    @NotNull
+    @Override
+    public <T extends AbstractArrow> T spawnArrow(@NotNull Location location, @NotNull Vector direction, float speed, float spread, @NotNull Class<T> clazz) {
 
         return null;
     }
 
     @Override
-    public <T extends AbstractArrow> T spawnArrow(Location location, Vector direction, float speed, float spread, Class<T> clazz) {
-
-        return null;
-    }
-
-    @Override
-    public boolean generateTree(Location location, TreeType type) {
+    public boolean generateTree(@NotNull Location location, @NotNull TreeType type) {
 
         return false;
     }
 
     @Override
-    public boolean generateTree(Location loc, TreeType type, BlockChangeDelegate delegate) {
+    public boolean generateTree(@NotNull Location loc, @NotNull TreeType type, @NotNull BlockChangeDelegate delegate) {
 
         return false;
     }
 
+    @NotNull
     @Override
-    public Entity spawnEntity(Location loc, EntityType type) {
+    public Entity spawnEntity(@NotNull Location loc, @NotNull EntityType type) {
 
         return null;
     }
 
+    @NotNull
     @Override
-    public LightningStrike strikeLightning(Location loc) {
+    public LightningStrike strikeLightning(@NotNull Location loc) {
 
         return null;
     }
 
+    @NotNull
     @Override
-    public LightningStrike strikeLightningEffect(Location loc) {
+    public LightningStrike strikeLightningEffect(@NotNull Location loc) {
 
         return null;
     }
 
+    @NotNull
     @Override
     public List<Entity> getEntities() {
 
         return null;
     }
 
+    @NotNull
     @Override
     public List<LivingEntity> getLivingEntities() {
 
         return null;
     }
 
+    @NotNull
+    @SuppressWarnings({"RedundantSuppression", "unchecked"})
     @Override
-    public <T extends Entity> Collection<T> getEntitiesByClass(@SuppressWarnings("unchecked") Class<T>... classes) {
+    public <T extends Entity> Collection<T> getEntitiesByClass(@NotNull @SuppressWarnings("unchecked") Class<T>... classes) {
 
         return null;
     }
 
+    @NotNull
     @Override
-    public <T extends Entity> Collection<T> getEntitiesByClass(Class<T> cls) {
+    public <T extends Entity> Collection<T> getEntitiesByClass(@NotNull Class<T> cls) {
 
         return null;
     }
 
+    @NotNull
     @Override
-    public Collection<Entity> getEntitiesByClasses(Class<?>... classes) {
+    public Collection<Entity> getEntitiesByClasses(@NotNull Class<?>... classes) {
 
         return null;
     }
 
+    @NotNull
     @Override
     public List<Player> getPlayers() {
 
         return null;
     }
 
+    @NotNull
     @Override
-    public Collection<Entity> getNearbyEntities(Location location, double x, double y, double z) {
+    public Collection<Entity> getNearbyEntities(@NotNull Location location, double x, double y, double z) {
+
+        return null;
+    }
+
+    @NotNull
+    @Override
+    public Collection<Entity> getNearbyEntities(@NotNull Location location, double x, double y, double z, Predicate<Entity> filter) {
+
+        return null;
+    }
+
+    @NotNull
+    @Override
+    public Collection<Entity> getNearbyEntities(@NotNull BoundingBox boundingBox) {
+
+        return null;
+    }
+
+    @NotNull
+    @Override
+    public Collection<Entity> getNearbyEntities(@NotNull BoundingBox boundingBox, Predicate<Entity> filter) {
 
         return null;
     }
 
     @Override
-    public Collection<Entity> getNearbyEntities(Location location, double x, double y, double z, Predicate<Entity> filter) {
+    public RayTraceResult rayTraceEntities(@NotNull Location start, @NotNull Vector direction, double maxDistance) {
 
         return null;
     }
 
     @Override
-    public Collection<Entity> getNearbyEntities(BoundingBox boundingBox) {
+    public RayTraceResult rayTraceEntities(@NotNull Location start, @NotNull Vector direction, double maxDistance, double raySize) {
 
         return null;
     }
 
     @Override
-    public Collection<Entity> getNearbyEntities(BoundingBox boundingBox, Predicate<Entity> filter) {
+    public RayTraceResult rayTraceEntities(@NotNull Location start, @NotNull Vector direction, double maxDistance, Predicate<Entity> filter) {
 
         return null;
     }
 
     @Override
-    public RayTraceResult rayTraceEntities(Location start, Vector direction, double maxDistance) {
+    public RayTraceResult rayTraceEntities(@NotNull Location start, @NotNull Vector direction, double maxDistance, double raySize, Predicate<Entity> filter) {
 
         return null;
     }
 
     @Override
-    public RayTraceResult rayTraceEntities(Location start, Vector direction, double maxDistance, double raySize) {
+    public RayTraceResult rayTraceBlocks(@NotNull Location start, @NotNull Vector direction, double maxDistance) {
 
         return null;
     }
 
     @Override
-    public RayTraceResult rayTraceEntities(Location start, Vector direction, double maxDistance, Predicate<Entity> filter) {
+    public RayTraceResult rayTraceBlocks(@NotNull Location start, @NotNull Vector direction, double maxDistance, @NotNull FluidCollisionMode fluidCollisionMode) {
 
         return null;
     }
 
     @Override
-    public RayTraceResult rayTraceEntities(Location start, Vector direction, double maxDistance, double raySize, Predicate<Entity> filter) {
+    public RayTraceResult rayTraceBlocks(@NotNull Location start, @NotNull Vector direction, double maxDistance, @NotNull FluidCollisionMode fluidCollisionMode, boolean ignorePassableBlocks) {
 
         return null;
     }
 
     @Override
-    public RayTraceResult rayTraceBlocks(Location start, Vector direction, double maxDistance) {
-
-        return null;
-    }
-
-    @Override
-    public RayTraceResult rayTraceBlocks(Location start, Vector direction, double maxDistance, FluidCollisionMode fluidCollisionMode) {
-
-        return null;
-    }
-
-    @Override
-    public RayTraceResult rayTraceBlocks(Location start, Vector direction, double maxDistance, FluidCollisionMode fluidCollisionMode, boolean ignorePassableBlocks) {
-
-        return null;
-    }
-
-    @Override
-    public RayTraceResult rayTrace(Location start, Vector direction, double maxDistance, FluidCollisionMode fluidCollisionMode, boolean ignorePassableBlocks, double raySize, Predicate<Entity> filter) {
+    public RayTraceResult rayTrace(@NotNull Location start, @NotNull Vector direction, double maxDistance, @NotNull FluidCollisionMode fluidCollisionMode, boolean ignorePassableBlocks, double raySize, Predicate<Entity> filter) {
 
         return null;
     }
 
+    @NotNull
     @Override
     public String getName() {
 
         return worldName;
     }
 
+    @NotNull
     @Override
     public UUID getUID() {
 
         return null;
     }
 
+    @NotNull
     @Override
     public Location getSpawnLocation() {
 
@@ -495,7 +531,7 @@ public class FakeWorld implements World {
     }
 
     @Override
-    public boolean setSpawnLocation(Location location) {
+    public boolean setSpawnLocation(@NotNull Location location) {
 
         return false;
     }
@@ -622,29 +658,30 @@ public class FakeWorld implements World {
     }
 
     @Override
-    public boolean createExplosion(Location loc, float power) {
+    public boolean createExplosion(@NotNull Location loc, float power) {
 
         return false;
     }
 
     @Override
-    public boolean createExplosion(Location loc, float power, boolean setFire) {
+    public boolean createExplosion(@NotNull Location loc, float power, boolean setFire) {
 
         return false;
     }
 
     @Override
-    public boolean createExplosion(Location loc, float power, boolean setFire, boolean breakBlocks) {
+    public boolean createExplosion(@NotNull Location loc, float power, boolean setFire, boolean breakBlocks) {
 
         return false;
     }
 
     @Override
-    public boolean createExplosion(Location loc, float power, boolean setFire, boolean breakBlocks, Entity source) {
+    public boolean createExplosion(@NotNull Location loc, float power, boolean setFire, boolean breakBlocks, Entity source) {
 
         return false;
     }
 
+    @NotNull
     @Override
     public Environment getEnvironment() {
 
@@ -679,62 +716,69 @@ public class FakeWorld implements World {
 
     }
 
+    @NotNull
     @Override
     public List<BlockPopulator> getPopulators() {
 
         return null;
     }
 
+    @NotNull
     @Override
-    public <T extends Entity> T spawn(Location location, Class<T> clazz) throws IllegalArgumentException {
+    public <T extends Entity> T spawn(@NotNull Location location, @NotNull Class<T> clazz) throws IllegalArgumentException {
+
+        return null;
+    }
+
+    @NotNull
+    @Override
+    public <T extends Entity> T spawn(@NotNull Location location, @NotNull Class<T> clazz, Consumer<T> function) throws IllegalArgumentException {
+
+        return null;
+    }
+
+    @NotNull
+    @Override
+    public FallingBlock spawnFallingBlock(@NotNull Location location, @NotNull MaterialData data) throws IllegalArgumentException {
+
+        return null;
+    }
+
+    @NotNull
+    @Override
+    public FallingBlock spawnFallingBlock(@NotNull Location location, @NotNull BlockData data) throws IllegalArgumentException {
+
+        return null;
+    }
+
+    @NotNull
+    @Override
+    public FallingBlock spawnFallingBlock(@NotNull Location location, @NotNull Material material, byte data) throws IllegalArgumentException {
 
         return null;
     }
 
     @Override
-    public <T extends Entity> T spawn(Location location, Class<T> clazz, Consumer<T> function) throws IllegalArgumentException {
-
-        return null;
-    }
-
-    @Override
-    public FallingBlock spawnFallingBlock(Location location, MaterialData data) throws IllegalArgumentException {
-
-        return null;
-    }
-
-    @Override
-    public FallingBlock spawnFallingBlock(Location location, BlockData data) throws IllegalArgumentException {
-
-        return null;
-    }
-
-    @Override
-    public FallingBlock spawnFallingBlock(Location location, Material material, byte data) throws IllegalArgumentException {
-
-        return null;
-    }
-
-    @Override
-    public void playEffect(Location location, Effect effect, int data) {
+    public void playEffect(@NotNull Location location, @NotNull Effect effect, int data) {
 
     }
 
     @Override
-    public void playEffect(Location location, Effect effect, int data, int radius) {
+    public void playEffect(@NotNull Location location, @NotNull Effect effect, int data, int radius) {
 
     }
 
     @Override
-    public <T> void playEffect(Location location, Effect effect, T data) {
+    public <T> void playEffect(@NotNull Location location, @NotNull Effect effect, T data) {
 
     }
 
     @Override
-    public <T> void playEffect(Location location, Effect effect, T data, int radius) {
+    public <T> void playEffect(@NotNull Location location, @NotNull Effect effect, T data, int radius) {
 
     }
 
+    @NotNull
     @Override
     public ChunkSnapshot getEmptyChunkSnapshot(int x, int z, boolean includeBiome, boolean includeBiomeTemp) {
 
@@ -758,12 +802,14 @@ public class FakeWorld implements World {
         return false;
     }
 
+    @NotNull
     @Override
     public Biome getBiome(int x, int z) {
 
         return null;
     }
 
+    @NotNull
     @Override
     public Biome getBiome(int x, int y, int z) {
 
@@ -771,12 +817,12 @@ public class FakeWorld implements World {
     }
 
     @Override
-    public void setBiome(int x, int z, Biome bio) {
+    public void setBiome(int x, int z, @NotNull Biome bio) {
 
     }
 
     @Override
-    public void setBiome(int x, int y, int z, Biome bio) {
+    public void setBiome(int x, int y, int z, @NotNull Biome bio) {
 
     }
 
@@ -844,16 +890,18 @@ public class FakeWorld implements World {
     }
 
     @Override
-    public void setDifficulty(Difficulty difficulty) {
+    public void setDifficulty(@NotNull Difficulty difficulty) {
 
     }
 
+    @NotNull
     @Override
     public Difficulty getDifficulty() {
 
         return null;
     }
 
+    @NotNull
     @Override
     public File getWorldFolder() {
 
@@ -994,25 +1042,26 @@ public class FakeWorld implements World {
     }
 
     @Override
-    public void playSound(Location location, Sound sound, float volume, float pitch) {
+    public void playSound(@NotNull Location location, @NotNull Sound sound, float volume, float pitch) {
 
     }
 
     @Override
-    public void playSound(Location location, String sound, float volume, float pitch) {
+    public void playSound(@NotNull Location location, @NotNull String sound, float volume, float pitch) {
 
     }
 
     @Override
-    public void playSound(Location location, Sound sound, SoundCategory category, float volume, float pitch) {
+    public void playSound(@NotNull Location location, @NotNull Sound sound, @NotNull SoundCategory category, float volume, float pitch) {
 
     }
 
     @Override
-    public void playSound(Location location, String sound, SoundCategory category, float volume, float pitch) {
+    public void playSound(@NotNull Location location, @NotNull String sound, @NotNull SoundCategory category, float volume, float pitch) {
 
     }
 
+    @NotNull
     @Override
     public String[] getGameRules() {
 
@@ -1026,35 +1075,36 @@ public class FakeWorld implements World {
     }
 
     @Override
-    public boolean setGameRuleValue(String rule, String value) {
+    public boolean setGameRuleValue(@NotNull String rule, @NotNull String value) {
 
         return false;
     }
 
     @Override
-    public boolean isGameRule(String rule) {
+    public boolean isGameRule(@NotNull String rule) {
 
         return false;
     }
 
     @Override
-    public <T> T getGameRuleValue(GameRule<T> rule) {
+    public <T> T getGameRuleValue(@NotNull GameRule<T> rule) {
 
         return null;
     }
 
     @Override
-    public <T> T getGameRuleDefault(GameRule<T> rule) {
+    public <T> T getGameRuleDefault(@NotNull GameRule<T> rule) {
 
         return null;
     }
 
     @Override
-    public <T> boolean setGameRule(GameRule<T> rule, T newValue) {
+    public <T> boolean setGameRule(@NotNull GameRule<T> rule, @NotNull T newValue) {
 
         return false;
     }
 
+    @NotNull
     @Override
     public WorldBorder getWorldBorder() {
 
@@ -1062,77 +1112,77 @@ public class FakeWorld implements World {
     }
 
     @Override
-    public void spawnParticle(Particle particle, Location location, int count) {
+    public void spawnParticle(@NotNull Particle particle, @NotNull Location location, int count) {
 
     }
 
     @Override
-    public void spawnParticle(Particle particle, double x, double y, double z, int count) {
+    public void spawnParticle(@NotNull Particle particle, double x, double y, double z, int count) {
 
     }
 
     @Override
-    public <T> void spawnParticle(Particle particle, Location location, int count, T data) {
+    public <T> void spawnParticle(@NotNull Particle particle, @NotNull Location location, int count, T data) {
 
     }
 
     @Override
-    public <T> void spawnParticle(Particle particle, double x, double y, double z, int count, T data) {
+    public <T> void spawnParticle(@NotNull Particle particle, double x, double y, double z, int count, T data) {
 
     }
 
     @Override
-    public void spawnParticle(Particle particle, Location location, int count, double offsetX, double offsetY, double offsetZ) {
+    public void spawnParticle(@NotNull Particle particle, @NotNull Location location, int count, double offsetX, double offsetY, double offsetZ) {
 
     }
 
     @Override
-    public void spawnParticle(Particle particle, double x, double y, double z, int count, double offsetX, double offsetY, double offsetZ) {
+    public void spawnParticle(@NotNull Particle particle, double x, double y, double z, int count, double offsetX, double offsetY, double offsetZ) {
 
     }
 
     @Override
-    public <T> void spawnParticle(Particle particle, Location location, int count, double offsetX, double offsetY, double offsetZ, T data) {
+    public <T> void spawnParticle(@NotNull Particle particle, @NotNull Location location, int count, double offsetX, double offsetY, double offsetZ, T data) {
 
     }
 
     @Override
-    public <T> void spawnParticle(Particle particle, double x, double y, double z, int count, double offsetX, double offsetY, double offsetZ, T data) {
+    public <T> void spawnParticle(@NotNull Particle particle, double x, double y, double z, int count, double offsetX, double offsetY, double offsetZ, T data) {
 
     }
 
     @Override
-    public void spawnParticle(Particle particle, Location location, int count, double offsetX, double offsetY, double offsetZ, double extra) {
+    public void spawnParticle(@NotNull Particle particle, @NotNull Location location, int count, double offsetX, double offsetY, double offsetZ, double extra) {
 
     }
 
     @Override
-    public void spawnParticle(Particle particle, double x, double y, double z, int count, double offsetX, double offsetY, double offsetZ, double extra) {
+    public void spawnParticle(@NotNull Particle particle, double x, double y, double z, int count, double offsetX, double offsetY, double offsetZ, double extra) {
 
     }
 
     @Override
-    public <T> void spawnParticle(Particle particle, Location location, int count, double offsetX, double offsetY, double offsetZ, double extra, T data) {
+    public <T> void spawnParticle(@NotNull Particle particle, @NotNull Location location, int count, double offsetX, double offsetY, double offsetZ, double extra, T data) {
 
     }
 
     @Override
-    public <T> void spawnParticle(Particle particle, double x, double y, double z, int count, double offsetX, double offsetY, double offsetZ, double extra, T data) {
+    public <T> void spawnParticle(@NotNull Particle particle, double x, double y, double z, int count, double offsetX, double offsetY, double offsetZ, double extra, T data) {
 
     }
 
     @Override
-    public <T> void spawnParticle(Particle particle, Location location, int count, double offsetX, double offsetY, double offsetZ, double extra, T data, boolean force) {
+    public <T> void spawnParticle(@NotNull Particle particle, @NotNull Location location, int count, double offsetX, double offsetY, double offsetZ, double extra, T data, boolean force) {
 
     }
 
     @Override
-    public <T> void spawnParticle(Particle particle, double x, double y, double z, int count, double offsetX, double offsetY, double offsetZ, double extra, T data, boolean force) {
+    public <T> void spawnParticle(@NotNull Particle particle, double x, double y, double z, int count, double offsetX, double offsetY, double offsetZ, double extra, T data, boolean force) {
 
     }
 
     @Override
-    public Location locateNearestStructure(Location origin, StructureType structureType, int radius, boolean findUnexplored) {
+    public Location locateNearestStructure(@NotNull Location origin, @NotNull StructureType structureType, int radius, boolean findUnexplored) {
         return null;
     }
 
@@ -1141,16 +1191,18 @@ public class FakeWorld implements World {
         return 0;
     }
 
+    @NotNull
     @Override
     public Spigot spigot() {
         return null;
     }
 
     @Override
-    public Raid locateNearestRaid(Location location, int radius) {
+    public Raid locateNearestRaid(@NotNull Location location, int radius) {
         return null;
     }
 
+    @NotNull
     @Override
     public List<Raid> getRaids() {
         return null;

src/main/java/com/volmit/iris/util/Form.java

@@ -36,7 +36,7 @@ public class Form {
     private static final NavigableMap<BigInteger, String> MAP;
 
     static {
-        MAP = new TreeMap<BigInteger, String>();
+        MAP = new TreeMap<>();
         for (int i = 0; i < NAMES.length; i++) {
             MAP.put(THOUSAND.pow(i + 1), NAMES[i]);
         }
@@ -54,7 +54,6 @@ public class Form {
      * @param smx      the text
      * @param viewport the viewport length
      * @param time     the timeline value
-     * @return
      */
     public static String scroll(String smx, int viewport, long time) {
         String src = Form.repeat(" ", viewport) + smx + Form.repeat(" ", viewport);
@@ -73,19 +72,19 @@ public class Form {
      * @return the capitalized string
      */
     public static String capitalize(String s) {
-        String roll = "";
+        StringBuilder roll = new StringBuilder();
         boolean f = true;
 
         for (Character i : s.trim().toCharArray()) {
             if (f) {
-                roll += Character.toUpperCase(i);
+                roll.append(Character.toUpperCase(i));
                 f = false;
             } else {
-                roll += i;
+                roll.append(i);
             }
         }
 
-        return roll;
+        return roll.toString();
     }
 
     /**
@@ -95,10 +94,10 @@ public class Form {
      * @return the capitalized string
      */
     public static String capitalizeWords(String s) {
-        String rollx = "";
+        StringBuilder rollx = new StringBuilder();
 
         for (String i : s.trim().split(" ")) {
-            rollx += " " + capitalize(i.trim());
+            rollx.append(" ").append(capitalize(i.trim()));
         }
 
         return rollx.substring(1);
@@ -223,7 +222,6 @@ public class Form {
     /**
      * Returns a fancy duration up to Years
      *
-     * @param rollingSequence
      * @param duration        the duration in ms
      * @return the fancy duration
      */
@@ -341,72 +339,33 @@ public class Form {
                 } else {
                     int h = c.get(Calendar.HOUR);
                     h = h == 0 ? 12 : h;
-                    String dow = "Error Day";
-
-                    switch (c.get(Calendar.DAY_OF_WEEK)) {
-                        case Calendar.SUNDAY:
-                            dow = "Sunday";
-                            break;
-                        case Calendar.MONDAY:
-                            dow = "Monday";
-                            break;
-                        case Calendar.TUESDAY:
-                            dow = "Tuesday";
-                            break;
-                        case Calendar.WEDNESDAY:
-                            dow = "Wednesday";
-                            break;
-                        case Calendar.THURSDAY:
-                            dow = "Thursday";
-                            break;
-                        case Calendar.FRIDAY:
-                            dow = "Friday";
-                            break;
-                        case Calendar.SATURDAY:
-                            dow = "Saturday";
-                            break;
-                    }
+                    String dow = switch (c.get(Calendar.DAY_OF_WEEK)) {
+                        case Calendar.SUNDAY -> "Sunday";
+                        case Calendar.MONDAY -> "Monday";
+                        case Calendar.TUESDAY -> "Tuesday";
+                        case Calendar.WEDNESDAY -> "Wednesday";
+                        case Calendar.THURSDAY -> "Thursday";
+                        case Calendar.FRIDAY -> "Friday";
+                        case Calendar.SATURDAY -> "Saturday";
+                        default -> "Error Day";
+                    };
 
                     String monthName = "Error Month";
                     int month = c.get(Calendar.MONTH);
 
                     switch (month) {
-                        case Calendar.JANUARY:
-                            monthName = "Jan";
-                            break;
-                        case Calendar.FEBRUARY:
-                            monthName = "Feb";
-                            break;
-                        case Calendar.MARCH:
-                            monthName = "Mar";
-                            break;
-                        case Calendar.APRIL:
-                            monthName = "Apr";
-                            break;
-                        case Calendar.MAY:
-                            monthName = "May";
-                            break;
-                        case Calendar.JUNE:
-                            monthName = "Jun";
-                            break;
-                        case Calendar.JULY:
-                            monthName = "Jul";
-                            break;
-                        case Calendar.AUGUST:
-                            monthName = "Aug";
-                            break;
-                        case Calendar.SEPTEMBER:
-                            monthName = "Sep";
-                            break;
-                        case Calendar.OCTOBER:
-                            monthName = "Oct";
-                            break;
-                        case Calendar.NOVEMBER:
-                            monthName = "Nov";
-                            break;
-                        case Calendar.DECEMBER:
-                            monthName = "Dec";
-                            break;
+                        case Calendar.JANUARY -> monthName = "Jan";
+                        case Calendar.FEBRUARY -> monthName = "Feb";
+                        case Calendar.MARCH -> monthName = "Mar";
+                        case Calendar.APRIL -> monthName = "Apr";
+                        case Calendar.MAY -> monthName = "May";
+                        case Calendar.JUNE -> monthName = "Jun";
+                        case Calendar.JULY -> monthName = "Jul";
+                        case Calendar.AUGUST -> monthName = "Aug";
+                        case Calendar.SEPTEMBER -> monthName = "Sep";
+                        case Calendar.OCTOBER -> monthName = "Oct";
+                        case Calendar.NOVEMBER -> monthName = "Nov";
+                        case Calendar.DECEMBER -> monthName = "Dec";
                     }
 
                     int dayOfMonth = c.get(Calendar.DAY_OF_MONTH);
@@ -417,72 +376,33 @@ public class Form {
             } else {
                 int h = c.get(Calendar.HOUR);
                 h = h == 0 ? 12 : h;
-                String dow = "Error Day";
-
-                switch (c.get(Calendar.DAY_OF_WEEK)) {
-                    case Calendar.SUNDAY:
-                        dow = "Sunday";
-                        break;
-                    case Calendar.MONDAY:
-                        dow = "Monday";
-                        break;
-                    case Calendar.TUESDAY:
-                        dow = "Tuesday";
-                        break;
-                    case Calendar.WEDNESDAY:
-                        dow = "Wednesday";
-                        break;
-                    case Calendar.THURSDAY:
-                        dow = "Thursday";
-                        break;
-                    case Calendar.FRIDAY:
-                        dow = "Friday";
-                        break;
-                    case Calendar.SATURDAY:
-                        dow = "Saturday";
-                        break;
-                }
+                String dow = switch (c.get(Calendar.DAY_OF_WEEK)) {
+                    case Calendar.SUNDAY -> "Sunday";
+                    case Calendar.MONDAY -> "Monday";
+                    case Calendar.TUESDAY -> "Tuesday";
+                    case Calendar.WEDNESDAY -> "Wednesday";
+                    case Calendar.THURSDAY -> "Thursday";
+                    case Calendar.FRIDAY -> "Friday";
+                    case Calendar.SATURDAY -> "Saturday";
+                    default -> "Error Day";
+                };
 
                 String monthName = "Error Month";
                 int month = c.get(Calendar.MONTH);
 
                 switch (month) {
-                    case Calendar.JANUARY:
-                        monthName = "Jan";
-                        break;
-                    case Calendar.FEBRUARY:
-                        monthName = "Feb";
-                        break;
-                    case Calendar.MARCH:
-                        monthName = "Mar";
-                        break;
-                    case Calendar.APRIL:
-                        monthName = "Apr";
-                        break;
-                    case Calendar.MAY:
-                        monthName = "May";
-                        break;
-                    case Calendar.JUNE:
-                        monthName = "Jun";
-                        break;
-                    case Calendar.JULY:
-                        monthName = "Jul";
-                        break;
-                    case Calendar.AUGUST:
-                        monthName = "Aug";
-                        break;
-                    case Calendar.SEPTEMBER:
-                        monthName = "Sep";
-                        break;
-                    case Calendar.OCTOBER:
-                        monthName = "Oct";
-                        break;
-                    case Calendar.NOVEMBER:
-                        monthName = "Nov";
-                        break;
-                    case Calendar.DECEMBER:
-                        monthName = "Dec";
-                        break;
+                    case Calendar.JANUARY -> monthName = "Jan";
+                    case Calendar.FEBRUARY -> monthName = "Feb";
+                    case Calendar.MARCH -> monthName = "Mar";
+                    case Calendar.APRIL -> monthName = "Apr";
+                    case Calendar.MAY -> monthName = "May";
+                    case Calendar.JUNE -> monthName = "Jun";
+                    case Calendar.JULY -> monthName = "Jul";
+                    case Calendar.AUGUST -> monthName = "Aug";
+                    case Calendar.SEPTEMBER -> monthName = "Sep";
+                    case Calendar.OCTOBER -> monthName = "Oct";
+                    case Calendar.NOVEMBER -> monthName = "Nov";
+                    case Calendar.DECEMBER -> monthName = "Dec";
                 }
 
                 int dayOfMonth = c.get(Calendar.DAY_OF_MONTH);
@@ -502,15 +422,10 @@ public class Form {
      */
     public static String numberSuffix(int i) {
         String[] sufixes = new String[]{"th", "st", "nd", "rd", "th", "th", "th", "th", "th", "th"};
-        switch (i % 100) {
-            case 11:
-            case 12:
-            case 13:
-                return i + "th";
-            default:
-                return i + sufixes[i % 10];
-
-        }
+        return switch (i % 100) {
+            case 11, 12, 13 -> i + "th";
+            default -> i + sufixes[i % 10];
+        };
     }
 
     /**
@@ -722,7 +637,7 @@ public class Form {
      * @return the string
      */
     public static String ofSize(long s, int div) {
-        Double d = (double) s;
+        double d = (double) s;
         String sub = "Bytes";
 
         if (d > div - 1) {
@@ -763,7 +678,7 @@ public class Form {
      * @return the string
      */
     public static String ofSize(long s, int div, int dec) {
-        Double d = (double) s;
+        double d = (double) s;
         String sub = "Bytes";
 
         if (d > div - 1) {
@@ -804,7 +719,7 @@ public class Form {
         if (neg) {
             s = -s;
         }
-        Double d = (double) s;
+        double d = (double) s;
         String sub = "Grams";
 
         if (d > div - 1) {
@@ -853,21 +768,21 @@ public class Form {
      * @return the string representation
      */
     public static String cname(String clazz) {
-        String codeName = "";
+        StringBuilder codeName = new StringBuilder();
 
         for (Character i : clazz.toCharArray()) {
             if (Character.isUpperCase(i)) {
-                codeName = codeName + "-" + Character.toLowerCase(i);
+                codeName.append("-").append(Character.toLowerCase(i));
             } else {
-                codeName = codeName + i;
+                codeName.append(i);
             }
         }
 
-        if (codeName.startsWith("-")) {
-            codeName = codeName.substring(1);
+        if (codeName.toString().startsWith("-")) {
+            codeName = new StringBuilder(codeName.substring(1));
         }
 
-        return codeName;
+        return codeName.toString();
     }
 
     /**
@@ -887,7 +802,6 @@ public class Form {
     /**
      * Get a formatted representation of the memory given in kilobytes
      *
-     * @param mb the kilobytes
      * @return the string representation with suffixes
      */
     public static String memx(long kb) {
@@ -1121,7 +1035,6 @@ public class Form {
     /**
      * nanoseconds to seconds (double)
      *
-     * @param ms the nanoseconds
      * @return a formatted string to nanoseconds
      */
     public static String nsMs(long ns) {
@@ -1131,7 +1044,6 @@ public class Form {
     /**
      * nanoseconds to seconds (double) custom decimals
      *
-     * @param ms the nanoseconds
      * @param p  number of decimal points
      * @return a formatted string to nanoseconds
      */
@@ -1142,7 +1054,6 @@ public class Form {
     /**
      * nanoseconds to seconds (double) custom decimals
      *
-     * @param ms the nanoseconds
      * @param p  number of decimal points
      * @return a formatted string to nanoseconds
      */
@@ -1157,7 +1068,7 @@ public class Form {
      * @return the numerals
      */
     public static String toRoman(int num) {
-        LinkedHashMap<String, Integer> roman_numerals = new LinkedHashMap<String, Integer>();
+        LinkedHashMap<String, Integer> roman_numerals = new LinkedHashMap<>();
 
         roman_numerals.put("M", 1000);
         roman_numerals.put("CM", 900);
@@ -1173,16 +1084,16 @@ public class Form {
         roman_numerals.put("IV", 4);
         roman_numerals.put("I", 1);
 
-        String res = "";
+        StringBuilder res = new StringBuilder();
 
         for (Map.Entry<String, Integer> entry : roman_numerals.entrySet()) {
             int matches = num / entry.getValue();
 
-            res += repeat(entry.getKey(), matches);
+            res.append(repeat(entry.getKey(), matches));
             num = num % entry.getValue();
         }
 
-        return res;
+        return res.toString();
     }
 
     /**
@@ -1260,6 +1171,7 @@ public class Form {
      * @param n the amount of times to repeat
      * @return the repeated string
      */
+    @SuppressWarnings("StringRepeatCanBeUsed")
     public static String repeat(String s, int n) {
         if (s == null) {
             return null;

src/main/java/com/volmit/iris/util/Function2.java

@@ -18,7 +18,6 @@
 
 package com.volmit.iris.util;
 
-@SuppressWarnings("hiding")
 @FunctionalInterface
 public interface Function2<A, B, R> {
     R apply(A a, B b);

src/main/java/com/volmit/iris/util/Function3.java

@@ -18,7 +18,6 @@
 
 package com.volmit.iris.util;
 
-@SuppressWarnings("hiding")
 @FunctionalInterface
 public interface Function3<A, B, C, R> {
     R apply(A a, B b, C c);

src/main/java/com/volmit/iris/util/Function4.java

@@ -18,7 +18,6 @@
 
 package com.volmit.iris.util;
 
-@SuppressWarnings("hiding")
 @FunctionalInterface
 public interface Function4<A, B, C, D, R> {
     R apply(A a, B b, C c, D d);

src/main/java/com/volmit/iris/util/GBiset.java

@@ -75,7 +75,6 @@ public class GBiset<A, B> implements Serializable {
     /**
      * Set the second object
      *
-     * @param b
      */
     public void setB(B b) {
         this.b = b;

src/main/java/com/volmit/iris/util/GListAdapter.java

@@ -36,7 +36,7 @@ public abstract class GListAdapter<FROM, TO> {
      * @return the to list
      */
     public List<TO> adapt(List<FROM> from) {
-        List<TO> adapted = new KList<TO>();
+        List<TO> adapted = new KList<>();
 
         for (FROM i : from) {
             TO t = onAdapt(i);

src/main/java/com/volmit/iris/util/GroupedExecutor.java

@@ -31,7 +31,7 @@ public class GroupedExecutor {
 
     public GroupedExecutor(int threadLimit, int priority, String name) {
         xc = 1;
-        mirror = new KMap<String, Integer>();
+        mirror = new KMap<>();
 
         if (threadLimit == 1) {
             service = Executors.newSingleThreadExecutor((r) ->
@@ -43,14 +43,11 @@ public class GroupedExecutor {
                 return t;
             });
         } else if (threadLimit > 1) {
-            final ForkJoinWorkerThreadFactory factory = new ForkJoinWorkerThreadFactory() {
-                @Override
-                public ForkJoinWorkerThread newThread(ForkJoinPool pool) {
-                    final ForkJoinWorkerThread worker = ForkJoinPool.defaultForkJoinWorkerThreadFactory.newThread(pool);
-                    worker.setName(name + " " + xc++);
-                    worker.setPriority(priority);
-                    return worker;
-                }
+            final ForkJoinWorkerThreadFactory factory = pool -> {
+                final ForkJoinWorkerThread worker = ForkJoinPool.defaultForkJoinWorkerThreadFactory.newThread(pool);
+                worker.setName(name + " " + xc++);
+                worker.setPriority(priority);
+                return worker;
             };
 
             service = new ForkJoinPool(threadLimit, factory, null, false);

src/main/java/com/volmit/iris/util/HTTP.java

@@ -81,7 +81,6 @@ public class HTTP {
      * @param string An HTTP header string.
      * @return A JSONObject containing the elements and attributes of the XML
      * string.
-     * @throws JSONException
      */
     public static JSONObject toJSONObject(String string) throws JSONException {
         JSONObject jo = new JSONObject();

src/main/java/com/volmit/iris/util/HTTPTokener.java

@@ -41,7 +41,6 @@ public class HTTPTokener extends JSONTokener {
      * Get the next token or string. This is used in parsing HTTP headers.
      *
      * @return A String.
-     * @throws JSONException
      */
     public String nextToken() throws JSONException {
         char c;

src/main/java/com/volmit/iris/util/HeightedFakeWorld.java

@@ -42,7 +42,7 @@ import java.io.File;
 import java.util.*;
 import java.util.function.Predicate;
 
-@SuppressWarnings("deprecation")
+@SuppressWarnings({"deprecation", "ClassCanBeRecord", "unchecked"})
 public class HeightedFakeWorld implements World {
     private final int height;
 
@@ -51,10 +51,11 @@ public class HeightedFakeWorld implements World {
     }
 
     @Override
-    public void sendPluginMessage(Plugin source, String channel, byte[] message) {
+    public void sendPluginMessage(@NotNull Plugin source, @NotNull String channel, @NotNull byte[] message) {
 
     }
 
+    @NotNull
     @Override
     public Set<String> getListeningPluginChannels() {
 
@@ -62,35 +63,38 @@ public class HeightedFakeWorld implements World {
     }
 
     @Override
-    public void setMetadata(String metadataKey, MetadataValue newMetadataValue) {
+    public void setMetadata(@NotNull String metadataKey, @NotNull MetadataValue newMetadataValue) {
 
     }
 
+    @NotNull
     @Override
-    public List<MetadataValue> getMetadata(String metadataKey) {
+    public List<MetadataValue> getMetadata(@NotNull String metadataKey) {
 
         return null;
     }
 
     @Override
-    public boolean hasMetadata(String metadataKey) {
+    public boolean hasMetadata(@NotNull String metadataKey) {
 
         return false;
     }
 
     @Override
-    public void removeMetadata(String metadataKey, Plugin owningPlugin) {
+    public void removeMetadata(@NotNull String metadataKey, @NotNull Plugin owningPlugin) {
 
     }
 
+    @NotNull
     @Override
     public Block getBlockAt(int x, int y, int z) {
 
         return null;
     }
 
+    @NotNull
     @Override
-    public Block getBlockAt(Location location) {
+    public Block getBlockAt(@NotNull Location location) {
 
         return null;
     }
@@ -102,71 +106,79 @@ public class HeightedFakeWorld implements World {
     }
 
     @Override
-    public int getHighestBlockYAt(Location location) {
+    public int getHighestBlockYAt(@NotNull Location location) {
 
         return 0;
     }
 
+    @NotNull
     @Override
     public Block getHighestBlockAt(int x, int z) {
 
         return null;
     }
 
+    @NotNull
     @Override
-    public Block getHighestBlockAt(Location location) {
+    public Block getHighestBlockAt(@NotNull Location location) {
 
         return null;
     }
 
     @Override
-    public int getHighestBlockYAt(int x, int z, HeightMap heightMap) {
+    public int getHighestBlockYAt(int x, int z, @NotNull HeightMap heightMap) {
 
         return 0;
     }
 
     @Override
-    public int getHighestBlockYAt(Location location, HeightMap heightMap) {
+    public int getHighestBlockYAt(@NotNull Location location, @NotNull HeightMap heightMap) {
 
         return 0;
     }
 
+    @NotNull
     @Override
-    public Block getHighestBlockAt(int x, int z, HeightMap heightMap) {
+    public Block getHighestBlockAt(int x, int z, @NotNull HeightMap heightMap) {
 
         return null;
     }
 
+    @NotNull
     @Override
-    public Block getHighestBlockAt(Location location, HeightMap heightMap) {
+    public Block getHighestBlockAt(@NotNull Location location, @NotNull HeightMap heightMap) {
 
         return null;
     }
 
+    @NotNull
     @Override
     public Chunk getChunkAt(int x, int z) {
 
         return null;
     }
 
+    @NotNull
     @Override
-    public Chunk getChunkAt(Location location) {
+    public Chunk getChunkAt(@NotNull Location location) {
+
+        return null;
+    }
+
+    @NotNull
+    @Override
+    public Chunk getChunkAt(@NotNull Block block) {
 
         return null;
     }
 
     @Override
-    public Chunk getChunkAt(Block block) {
-
-        return null;
-    }
-
-    @Override
-    public boolean isChunkLoaded(Chunk chunk) {
+    public boolean isChunkLoaded(@NotNull Chunk chunk) {
 
         return false;
     }
 
+    @NotNull
     @Override
     public Chunk[] getLoadedChunks() {
 
@@ -174,7 +186,7 @@ public class HeightedFakeWorld implements World {
     }
 
     @Override
-    public void loadChunk(Chunk chunk) {
+    public void loadChunk(@NotNull Chunk chunk) {
 
     }
 
@@ -208,7 +220,7 @@ public class HeightedFakeWorld implements World {
     }
 
     @Override
-    public boolean unloadChunk(Chunk chunk) {
+    public boolean unloadChunk(@NotNull Chunk chunk) {
 
         return false;
     }
@@ -254,6 +266,7 @@ public class HeightedFakeWorld implements World {
 
     }
 
+    @NotNull
     @Override
     public Collection<Chunk> getForceLoadedChunks() {
 
@@ -261,36 +274,39 @@ public class HeightedFakeWorld implements World {
     }
 
     @Override
-    public boolean addPluginChunkTicket(int x, int z, Plugin plugin) {
+    public boolean addPluginChunkTicket(int x, int z, @NotNull Plugin plugin) {
 
         return false;
     }
 
     @Override
-    public boolean removePluginChunkTicket(int x, int z, Plugin plugin) {
+    public boolean removePluginChunkTicket(int x, int z, @NotNull Plugin plugin) {
 
         return false;
     }
 
     @Override
-    public void removePluginChunkTickets(Plugin plugin) {
+    public void removePluginChunkTickets(@NotNull Plugin plugin) {
 
     }
 
+    @NotNull
     @Override
     public Collection<Plugin> getPluginChunkTickets(int x, int z) {
 
         return null;
     }
 
+    @NotNull
     @Override
     public Map<Plugin, Collection<Chunk>> getPluginChunkTickets() {
 
         return null;
     }
 
+    @NotNull
     @Override
-    public Item dropItem(Location location, ItemStack item) {
+    public Item dropItem(@NotNull Location location, @NotNull ItemStack item) {
 
         return null;
     }
@@ -301,8 +317,9 @@ public class HeightedFakeWorld implements World {
         return null;
     }
 
+    @NotNull
     @Override
-    public Item dropItemNaturally(Location location, ItemStack item) {
+    public Item dropItemNaturally(@NotNull Location location, @NotNull ItemStack item) {
 
         return null;
     }
@@ -313,168 +330,186 @@ public class HeightedFakeWorld implements World {
         return null;
     }
 
+    @NotNull
     @Override
-    public Arrow spawnArrow(Location location, Vector direction, float speed, float spread) {
+    public Arrow spawnArrow(@NotNull Location location, @NotNull Vector direction, float speed, float spread) {
+
+        return null;
+    }
+
+    @NotNull
+    @Override
+    public <T extends AbstractArrow> T spawnArrow(@NotNull Location location, @NotNull Vector direction, float speed, float spread, @NotNull Class<T> clazz) {
 
         return null;
     }
 
     @Override
-    public <T extends AbstractArrow> T spawnArrow(Location location, Vector direction, float speed, float spread, Class<T> clazz) {
-
-        return null;
-    }
-
-    @Override
-    public boolean generateTree(Location location, TreeType type) {
+    public boolean generateTree(@NotNull Location location, @NotNull TreeType type) {
 
         return false;
     }
 
     @Override
-    public boolean generateTree(Location loc, TreeType type, BlockChangeDelegate delegate) {
+    public boolean generateTree(@NotNull Location loc, @NotNull TreeType type, @NotNull BlockChangeDelegate delegate) {
 
         return false;
     }
 
+    @NotNull
     @Override
-    public Entity spawnEntity(Location loc, EntityType type) {
+    public Entity spawnEntity(@NotNull Location loc, @NotNull EntityType type) {
 
         return null;
     }
 
+    @NotNull
     @Override
-    public LightningStrike strikeLightning(Location loc) {
+    public LightningStrike strikeLightning(@NotNull Location loc) {
 
         return null;
     }
 
+    @NotNull
     @Override
-    public LightningStrike strikeLightningEffect(Location loc) {
+    public LightningStrike strikeLightningEffect(@NotNull Location loc) {
 
         return null;
     }
 
+    @NotNull
     @Override
     public List<Entity> getEntities() {
 
         return null;
     }
 
+    @NotNull
     @Override
     public List<LivingEntity> getLivingEntities() {
 
         return null;
     }
 
+    @NotNull
     @Override
-    public <T extends Entity> Collection<T> getEntitiesByClass(@SuppressWarnings("unchecked") Class<T>... classes) {
+    public <T extends Entity> Collection<T> getEntitiesByClass(@NotNull Class<T>... classes) {
 
         return null;
     }
 
+    @NotNull
     @Override
-    public <T extends Entity> Collection<T> getEntitiesByClass(Class<T> cls) {
+    public <T extends Entity> Collection<T> getEntitiesByClass(@NotNull Class<T> cls) {
 
         return null;
     }
 
+    @NotNull
     @Override
-    public Collection<Entity> getEntitiesByClasses(Class<?>... classes) {
+    public Collection<Entity> getEntitiesByClasses(@NotNull Class<?>... classes) {
 
         return null;
     }
 
+    @NotNull
     @Override
     public List<Player> getPlayers() {
 
         return null;
     }
 
+    @NotNull
     @Override
-    public Collection<Entity> getNearbyEntities(Location location, double x, double y, double z) {
+    public Collection<Entity> getNearbyEntities(@NotNull Location location, double x, double y, double z) {
+
+        return null;
+    }
+
+    @NotNull
+    @Override
+    public Collection<Entity> getNearbyEntities(@NotNull Location location, double x, double y, double z, Predicate<Entity> filter) {
+
+        return null;
+    }
+
+    @NotNull
+    @Override
+    public Collection<Entity> getNearbyEntities(@NotNull BoundingBox boundingBox) {
+
+        return null;
+    }
+
+    @NotNull
+    @Override
+    public Collection<Entity> getNearbyEntities(@NotNull BoundingBox boundingBox, Predicate<Entity> filter) {
 
         return null;
     }
 
     @Override
-    public Collection<Entity> getNearbyEntities(Location location, double x, double y, double z, Predicate<Entity> filter) {
+    public RayTraceResult rayTraceEntities(@NotNull Location start, @NotNull Vector direction, double maxDistance) {
 
         return null;
     }
 
     @Override
-    public Collection<Entity> getNearbyEntities(BoundingBox boundingBox) {
+    public RayTraceResult rayTraceEntities(@NotNull Location start, @NotNull Vector direction, double maxDistance, double raySize) {
 
         return null;
     }
 
     @Override
-    public Collection<Entity> getNearbyEntities(BoundingBox boundingBox, Predicate<Entity> filter) {
+    public RayTraceResult rayTraceEntities(@NotNull Location start, @NotNull Vector direction, double maxDistance, Predicate<Entity> filter) {
 
         return null;
     }
 
     @Override
-    public RayTraceResult rayTraceEntities(Location start, Vector direction, double maxDistance) {
+    public RayTraceResult rayTraceEntities(@NotNull Location start, @NotNull Vector direction, double maxDistance, double raySize, Predicate<Entity> filter) {
 
         return null;
     }
 
     @Override
-    public RayTraceResult rayTraceEntities(Location start, Vector direction, double maxDistance, double raySize) {
+    public RayTraceResult rayTraceBlocks(@NotNull Location start, @NotNull Vector direction, double maxDistance) {
 
         return null;
     }
 
     @Override
-    public RayTraceResult rayTraceEntities(Location start, Vector direction, double maxDistance, Predicate<Entity> filter) {
+    public RayTraceResult rayTraceBlocks(@NotNull Location start, @NotNull Vector direction, double maxDistance, @NotNull FluidCollisionMode fluidCollisionMode) {
 
         return null;
     }
 
     @Override
-    public RayTraceResult rayTraceEntities(Location start, Vector direction, double maxDistance, double raySize, Predicate<Entity> filter) {
+    public RayTraceResult rayTraceBlocks(@NotNull Location start, @NotNull Vector direction, double maxDistance, @NotNull FluidCollisionMode fluidCollisionMode, boolean ignorePassableBlocks) {
 
         return null;
     }
 
     @Override
-    public RayTraceResult rayTraceBlocks(Location start, Vector direction, double maxDistance) {
-
-        return null;
-    }
-
-    @Override
-    public RayTraceResult rayTraceBlocks(Location start, Vector direction, double maxDistance, FluidCollisionMode fluidCollisionMode) {
-
-        return null;
-    }
-
-    @Override
-    public RayTraceResult rayTraceBlocks(Location start, Vector direction, double maxDistance, FluidCollisionMode fluidCollisionMode, boolean ignorePassableBlocks) {
-
-        return null;
-    }
-
-    @Override
-    public RayTraceResult rayTrace(Location start, Vector direction, double maxDistance, FluidCollisionMode fluidCollisionMode, boolean ignorePassableBlocks, double raySize, Predicate<Entity> filter) {
+    public RayTraceResult rayTrace(@NotNull Location start, @NotNull Vector direction, double maxDistance, @NotNull FluidCollisionMode fluidCollisionMode, boolean ignorePassableBlocks, double raySize, Predicate<Entity> filter) {
 
         return null;
     }
 
+    @NotNull
     @Override
     public String getName() {
 
         return null;
     }
 
+    @NotNull
     @Override
     public UUID getUID() {
 
         return null;
     }
 
+    @NotNull
     @Override
     public Location getSpawnLocation() {
 
@@ -482,7 +517,7 @@ public class HeightedFakeWorld implements World {
     }
 
     @Override
-    public boolean setSpawnLocation(Location location) {
+    public boolean setSpawnLocation(@NotNull Location location) {
 
         return false;
     }
@@ -609,29 +644,30 @@ public class HeightedFakeWorld implements World {
     }
 
     @Override
-    public boolean createExplosion(Location loc, float power) {
+    public boolean createExplosion(@NotNull Location loc, float power) {
 
         return false;
     }
 
     @Override
-    public boolean createExplosion(Location loc, float power, boolean setFire) {
+    public boolean createExplosion(@NotNull Location loc, float power, boolean setFire) {
 
         return false;
     }
 
     @Override
-    public boolean createExplosion(Location loc, float power, boolean setFire, boolean breakBlocks) {
+    public boolean createExplosion(@NotNull Location loc, float power, boolean setFire, boolean breakBlocks) {
 
         return false;
     }
 
     @Override
-    public boolean createExplosion(Location loc, float power, boolean setFire, boolean breakBlocks, Entity source) {
+    public boolean createExplosion(@NotNull Location loc, float power, boolean setFire, boolean breakBlocks, Entity source) {
 
         return false;
     }
 
+    @NotNull
     @Override
     public Environment getEnvironment() {
 
@@ -666,62 +702,69 @@ public class HeightedFakeWorld implements World {
 
     }
 
+    @NotNull
     @Override
     public List<BlockPopulator> getPopulators() {
 
         return null;
     }
 
+    @NotNull
     @Override
-    public <T extends Entity> T spawn(Location location, Class<T> clazz) throws IllegalArgumentException {
+    public <T extends Entity> T spawn(@NotNull Location location, @NotNull Class<T> clazz) throws IllegalArgumentException {
+
+        return null;
+    }
+
+    @NotNull
+    @Override
+    public <T extends Entity> T spawn(@NotNull Location location, @NotNull Class<T> clazz, Consumer<T> function) throws IllegalArgumentException {
+
+        return null;
+    }
+
+    @NotNull
+    @Override
+    public FallingBlock spawnFallingBlock(@NotNull Location location, @NotNull MaterialData data) throws IllegalArgumentException {
+
+        return null;
+    }
+
+    @NotNull
+    @Override
+    public FallingBlock spawnFallingBlock(@NotNull Location location, @NotNull BlockData data) throws IllegalArgumentException {
+
+        return null;
+    }
+
+    @NotNull
+    @Override
+    public FallingBlock spawnFallingBlock(@NotNull Location location, @NotNull Material material, byte data) throws IllegalArgumentException {
 
         return null;
     }
 
     @Override
-    public <T extends Entity> T spawn(Location location, Class<T> clazz, Consumer<T> function) throws IllegalArgumentException {
-
-        return null;
-    }
-
-    @Override
-    public FallingBlock spawnFallingBlock(Location location, MaterialData data) throws IllegalArgumentException {
-
-        return null;
-    }
-
-    @Override
-    public FallingBlock spawnFallingBlock(Location location, BlockData data) throws IllegalArgumentException {
-
-        return null;
-    }
-
-    @Override
-    public FallingBlock spawnFallingBlock(Location location, Material material, byte data) throws IllegalArgumentException {
-
-        return null;
-    }
-
-    @Override
-    public void playEffect(Location location, Effect effect, int data) {
+    public void playEffect(@NotNull Location location, @NotNull Effect effect, int data) {
 
     }
 
     @Override
-    public void playEffect(Location location, Effect effect, int data, int radius) {
+    public void playEffect(@NotNull Location location, @NotNull Effect effect, int data, int radius) {
 
     }
 
     @Override
-    public <T> void playEffect(Location location, Effect effect, T data) {
+    public <T> void playEffect(@NotNull Location location, @NotNull Effect effect, T data) {
 
     }
 
     @Override
-    public <T> void playEffect(Location location, Effect effect, T data, int radius) {
+    public <T> void playEffect(@NotNull Location location, @NotNull Effect effect, T data, int radius) {
 
     }
 
+    @NotNull
     @Override
     public ChunkSnapshot getEmptyChunkSnapshot(int x, int z, boolean includeBiome, boolean includeBiomeTemp) {
 
@@ -745,12 +788,14 @@ public class HeightedFakeWorld implements World {
         return false;
     }
 
+    @NotNull
     @Override
     public Biome getBiome(int x, int z) {
 
         return null;
     }
 
+    @NotNull
     @Override
     public Biome getBiome(int x, int y, int z) {
 
@@ -758,12 +803,12 @@ public class HeightedFakeWorld implements World {
     }
 
     @Override
-    public void setBiome(int x, int z, Biome bio) {
+    public void setBiome(int x, int z, @NotNull Biome bio) {
 
     }
 
     @Override
-    public void setBiome(int x, int y, int z, Biome bio) {
+    public void setBiome(int x, int y, int z, @NotNull Biome bio) {
 
     }
 
@@ -831,16 +876,18 @@ public class HeightedFakeWorld implements World {
     }
 
     @Override
-    public void setDifficulty(Difficulty difficulty) {
+    public void setDifficulty(@NotNull Difficulty difficulty) {
 
     }
 
+    @NotNull
     @Override
     public Difficulty getDifficulty() {
 
         return null;
     }
 
+    @NotNull
     @Override
     public File getWorldFolder() {
 
@@ -981,25 +1028,26 @@ public class HeightedFakeWorld implements World {
     }
 
     @Override
-    public void playSound(Location location, Sound sound, float volume, float pitch) {
+    public void playSound(@NotNull Location location, @NotNull Sound sound, float volume, float pitch) {
 
     }
 
     @Override
-    public void playSound(Location location, String sound, float volume, float pitch) {
+    public void playSound(@NotNull Location location, @NotNull String sound, float volume, float pitch) {
 
     }
 
     @Override
-    public void playSound(Location location, Sound sound, SoundCategory category, float volume, float pitch) {
+    public void playSound(@NotNull Location location, @NotNull Sound sound, @NotNull SoundCategory category, float volume, float pitch) {
 
     }
 
     @Override
-    public void playSound(Location location, String sound, SoundCategory category, float volume, float pitch) {
+    public void playSound(@NotNull Location location, @NotNull String sound, @NotNull SoundCategory category, float volume, float pitch) {
 
     }
 
+    @NotNull
     @Override
     public String[] getGameRules() {
 
@@ -1013,35 +1061,36 @@ public class HeightedFakeWorld implements World {
     }
 
     @Override
-    public boolean setGameRuleValue(String rule, String value) {
+    public boolean setGameRuleValue(@NotNull String rule, @NotNull String value) {
 
         return false;
     }
 
     @Override
-    public boolean isGameRule(String rule) {
+    public boolean isGameRule(@NotNull String rule) {
 
         return false;
     }
 
     @Override
-    public <T> T getGameRuleValue(GameRule<T> rule) {
+    public <T> T getGameRuleValue(@NotNull GameRule<T> rule) {
 
         return null;
     }
 
     @Override
-    public <T> T getGameRuleDefault(GameRule<T> rule) {
+    public <T> T getGameRuleDefault(@NotNull GameRule<T> rule) {
 
         return null;
     }
 
     @Override
-    public <T> boolean setGameRule(GameRule<T> rule, T newValue) {
+    public <T> boolean setGameRule(@NotNull GameRule<T> rule, @NotNull T newValue) {
 
         return false;
     }
 
+    @NotNull
     @Override
     public WorldBorder getWorldBorder() {
 
@@ -1049,77 +1098,77 @@ public class HeightedFakeWorld implements World {
     }
 
     @Override
-    public void spawnParticle(Particle particle, Location location, int count) {
+    public void spawnParticle(@NotNull Particle particle, @NotNull Location location, int count) {
 
     }
 
     @Override
-    public void spawnParticle(Particle particle, double x, double y, double z, int count) {
+    public void spawnParticle(@NotNull Particle particle, double x, double y, double z, int count) {
 
     }
 
     @Override
-    public <T> void spawnParticle(Particle particle, Location location, int count, T data) {
+    public <T> void spawnParticle(@NotNull Particle particle, @NotNull Location location, int count, T data) {
 
     }
 
     @Override
-    public <T> void spawnParticle(Particle particle, double x, double y, double z, int count, T data) {
+    public <T> void spawnParticle(@NotNull Particle particle, double x, double y, double z, int count, T data) {
 
     }
 
     @Override
-    public void spawnParticle(Particle particle, Location location, int count, double offsetX, double offsetY, double offsetZ) {
+    public void spawnParticle(@NotNull Particle particle, @NotNull Location location, int count, double offsetX, double offsetY, double offsetZ) {
 
     }
 
     @Override
-    public void spawnParticle(Particle particle, double x, double y, double z, int count, double offsetX, double offsetY, double offsetZ) {
+    public void spawnParticle(@NotNull Particle particle, double x, double y, double z, int count, double offsetX, double offsetY, double offsetZ) {
 
     }
 
     @Override
-    public <T> void spawnParticle(Particle particle, Location location, int count, double offsetX, double offsetY, double offsetZ, T data) {
+    public <T> void spawnParticle(@NotNull Particle particle, @NotNull Location location, int count, double offsetX, double offsetY, double offsetZ, T data) {
 
     }
 
     @Override
-    public <T> void spawnParticle(Particle particle, double x, double y, double z, int count, double offsetX, double offsetY, double offsetZ, T data) {
+    public <T> void spawnParticle(@NotNull Particle particle, double x, double y, double z, int count, double offsetX, double offsetY, double offsetZ, T data) {
 
     }
 
     @Override
-    public void spawnParticle(Particle particle, Location location, int count, double offsetX, double offsetY, double offsetZ, double extra) {
+    public void spawnParticle(@NotNull Particle particle, @NotNull Location location, int count, double offsetX, double offsetY, double offsetZ, double extra) {
 
     }
 
     @Override
-    public void spawnParticle(Particle particle, double x, double y, double z, int count, double offsetX, double offsetY, double offsetZ, double extra) {
+    public void spawnParticle(@NotNull Particle particle, double x, double y, double z, int count, double offsetX, double offsetY, double offsetZ, double extra) {
 
     }
 
     @Override
-    public <T> void spawnParticle(Particle particle, Location location, int count, double offsetX, double offsetY, double offsetZ, double extra, T data) {
+    public <T> void spawnParticle(@NotNull Particle particle, @NotNull Location location, int count, double offsetX, double offsetY, double offsetZ, double extra, T data) {
 
     }
 
     @Override
-    public <T> void spawnParticle(Particle particle, double x, double y, double z, int count, double offsetX, double offsetY, double offsetZ, double extra, T data) {
+    public <T> void spawnParticle(@NotNull Particle particle, double x, double y, double z, int count, double offsetX, double offsetY, double offsetZ, double extra, T data) {
 
     }
 
     @Override
-    public <T> void spawnParticle(Particle particle, Location location, int count, double offsetX, double offsetY, double offsetZ, double extra, T data, boolean force) {
+    public <T> void spawnParticle(@NotNull Particle particle, @NotNull Location location, int count, double offsetX, double offsetY, double offsetZ, double extra, T data, boolean force) {
 
     }
 
     @Override
-    public <T> void spawnParticle(Particle particle, double x, double y, double z, int count, double offsetX, double offsetY, double offsetZ, double extra, T data, boolean force) {
+    public <T> void spawnParticle(@NotNull Particle particle, double x, double y, double z, int count, double offsetX, double offsetY, double offsetZ, double extra, T data, boolean force) {
 
     }
 
     @Override
-    public Location locateNearestStructure(Location origin, StructureType structureType, int radius, boolean findUnexplored) {
+    public Location locateNearestStructure(@NotNull Location origin, @NotNull StructureType structureType, int radius, boolean findUnexplored) {
         return null;
     }
 
@@ -1128,16 +1177,18 @@ public class HeightedFakeWorld implements World {
         return 0;
     }
 
+    @NotNull
     @Override
     public Spigot spigot() {
         return null;
     }
 
     @Override
-    public Raid locateNearestRaid(Location location, int radius) {
+    public Raid locateNearestRaid(@NotNull Location location, int radius) {
         return null;
     }
 
+    @NotNull
     @Override
     public List<Raid> getRaids() {
         return null;

src/main/java/com/volmit/iris/util/IController.java

@@ -20,6 +20,7 @@ package com.volmit.iris.util;
 
 import org.bukkit.event.Listener;
 
+@SuppressWarnings("EmptyMethod")
 public interface IController extends Listener {
     String getName();
 

src/main/java/com/volmit/iris/util/IO.java

@@ -29,6 +29,7 @@ import java.util.zip.GZIPInputStream;
 import java.util.zip.ZipEntry;
 import java.util.zip.ZipFile;
 
+@SuppressWarnings("ALL")
 public class IO {
     /**
      * The Unix directory separator character.
@@ -68,7 +69,7 @@ public class IO {
         IO.fullTransfer(gzi, boas, 256);
         gzi.close();
 
-        return boas.toString(StandardCharsets.UTF_8);
+        return boas.toString();
     }
 
     public static byte[] sdecompress(String compressed) throws IOException {
@@ -131,7 +132,6 @@ public class IO {
      *
      * @param in     the input
      * @param out    the output
-     * @param amount the buffer and size to use
      * @return the actual transfered amount
      * @throws IOException shit happens
      */
@@ -330,30 +330,30 @@ public class IO {
             throw e;
         }
         BufferedReader bu = new BufferedReader(fr);
-        String c = "";
+        StringBuilder c = new StringBuilder();
         String l = "";
 
         while ((l = bu.readLine()) != null) {
-            c += l + "\n";
+            c.append(l).append("\n");
         }
 
         bu.close();
 
-        return c;
+        return c.toString();
     }
 
     public static String readAll(InputStream in) throws IOException {
         BufferedReader bu = new BufferedReader(new InputStreamReader(in));
-        String c = "";
+        StringBuilder c = new StringBuilder();
         String l = "";
 
         while ((l = bu.readLine()) != null) {
-            c += l + "\n";
+            c.append(l).append("\n");
         }
 
         bu.close();
 
-        return c;
+        return c.toString();
     }
 
     /**
@@ -385,7 +385,6 @@ public class IO {
      * @throws NullPointerException if source or destination is null
      * @throws IOException          if source or destination is invalid
      * @throws IOException          if an IO error occurs during copying
-     * @see #copyFileToDirectory
      */
     public static void copyFile(File srcFile, File destFile) throws IOException {
         copyFile(srcFile, destFile, true);
@@ -406,7 +405,6 @@ public class IO {
      * @throws NullPointerException if source or destination is null
      * @throws IOException          if source or destination is invalid
      * @throws IOException          if an IO error occurs during copying
-     * @see #copyFileToDirectory
      */
     public static void copyFile(File srcFile, File destFile, boolean preserveFileDate) throws IOException {
         if (srcFile == null) {
@@ -415,7 +413,7 @@ public class IO {
         if (destFile == null) {
             throw new NullPointerException("Destination must not be null");
         }
-        if (srcFile.exists() == false) {
+        if (!srcFile.exists()) {
             throw new FileNotFoundException("Source '" + srcFile + "' does not exist");
         }
         if (srcFile.isDirectory()) {
@@ -424,12 +422,12 @@ public class IO {
         if (srcFile.getCanonicalPath().equals(destFile.getCanonicalPath())) {
             throw new IOException("Source '" + srcFile + "' and destination '" + destFile + "' are the same");
         }
-        if (destFile.getParentFile() != null && destFile.getParentFile().exists() == false) {
-            if (destFile.getParentFile().mkdirs() == false) {
+        if (destFile.getParentFile() != null && !destFile.getParentFile().exists()) {
+            if (!destFile.getParentFile().mkdirs()) {
                 throw new IOException("Destination '" + destFile + "' directory cannot be created");
             }
         }
-        if (destFile.exists() && destFile.canWrite() == false) {
+        if (destFile.exists() && !destFile.canWrite()) {
             throw new IOException("Destination '" + destFile + "' exists but is read-only");
         }
         doCopyFile(srcFile, destFile, preserveFileDate);
@@ -611,11 +609,9 @@ public class IO {
      *
      * @param input the <code>String</code> to convert
      * @return the requested byte array
-     * @throws NullPointerException if the input is null
-     * @throws IOException          if an I/O error occurs (never occurs)
      * @deprecated Use {@link String#getBytes()}
      */
-    public static byte[] toByteArray(String input) throws IOException {
+    public static byte[] toByteArray(String input) {
         return input.getBytes();
     }
 
@@ -748,11 +744,9 @@ public class IO {
      *
      * @param input the byte array to read from
      * @return the requested String
-     * @throws NullPointerException if the input is null
-     * @throws IOException          if an I/O error occurs (never occurs)
      * @deprecated Use {@link String#String(byte[])}
      */
-    public static String toString(byte[] input) throws IOException {
+    public static String toString(byte[] input) {
         return new String(input);
     }
 

src/main/java/com/volmit/iris/util/InvertedBiomeGrid.java

@@ -21,6 +21,7 @@ package com.volmit.iris.util;
 import com.volmit.iris.Iris;
 import org.bukkit.block.Biome;
 import org.bukkit.generator.ChunkGenerator.BiomeGrid;
+import org.jetbrains.annotations.NotNull;
 
 public class InvertedBiomeGrid implements BiomeGrid {
     private final BiomeGrid grid;
@@ -29,12 +30,14 @@ public class InvertedBiomeGrid implements BiomeGrid {
         this.grid = real;
     }
 
+    @NotNull
     @SuppressWarnings("deprecation")
     @Override
     public Biome getBiome(int arg0, int arg1) {
         return grid.getBiome(arg0, arg1);
     }
 
+    @NotNull
     @Override
     public Biome getBiome(int arg0, int arg1, int arg2) {
         if (!Iris.biome3d) {
@@ -46,12 +49,12 @@ public class InvertedBiomeGrid implements BiomeGrid {
 
     @SuppressWarnings("deprecation")
     @Override
-    public void setBiome(int arg0, int arg1, Biome arg2) {
+    public void setBiome(int arg0, int arg1, @NotNull Biome arg2) {
         grid.setBiome(arg0, arg1, arg2);
     }
 
     @Override
-    public void setBiome(int arg0, int arg1, int arg2, Biome arg3) {
+    public void setBiome(int arg0, int arg1, int arg2, @NotNull Biome arg3) {
         if (!Iris.biome3d) {
             setBiome(arg0, arg2, arg3);
             return;

src/main/java/com/volmit/iris/util/IrisInterpolation.java

@@ -848,8 +848,6 @@ public class IrisInterpolation {
             return getStarcast(x, z, h, 9D, (xx, zz) -> getHermiteNoise((int) xx, (int) zz, h, n, 0D, 0D));
         } else if (method.equals(InterpolationMethod.HERMITE_STARCAST_12)) {
             return getStarcast(x, z, h, 12D, (xx, zz) -> getHermiteNoise((int) xx, (int) zz, h, n, 0D, 0D));
-        } else if (method.equals(InterpolationMethod.BICUBIC)) {
-            return getBicubicNoise(x, z, h, n);
         } else if (method.equals(InterpolationMethod.BILINEAR_BEZIER)) {
             return getBilinearBezierNoise(x, z, h, n);
         } else if (method.equals(InterpolationMethod.BILINEAR_PARAMETRIC_2)) {

src/main/java/com/volmit/iris/util/IrisLock.java

@@ -47,7 +47,7 @@ public class IrisLock {
         }
         try {
             lock.unlock();
-        } catch (Throwable e) {
+        } catch (Throwable ignored) {
 
         }
     }

src/main/java/com/volmit/iris/util/IrisMathHelper.java

@@ -75,30 +75,21 @@ public class IrisMathHelper {
         if (var0 < var1) {
             return var1;
         }
-        if (var0 > var2) {
-            return var2;
-        }
-        return var0;
+        return Math.min(var0, var2);
     }
 
     public static float a(final float var0, final float var1, final float var2) {
         if (var0 < var1) {
             return var1;
         }
-        if (var0 > var2) {
-            return var2;
-        }
-        return var0;
+        return Math.min(var0, var2);
     }
 
     public static double a(final double var0, final double var2, final double var4) {
         if (var0 < var2) {
             return var2;
         }
-        if (var0 > var4) {
-            return var4;
-        }
-        return var0;
+        return Math.min(var0, var4);
     }
 
     public static double b(final double var0, final double var2, final double var4) {
@@ -118,7 +109,7 @@ public class IrisMathHelper {
         if (var2 < 0.0) {
             var2 = -var2;
         }
-        return (var0 > var2) ? var0 : var2;
+        return Math.max(var0, var2);
     }
 
     public static int a(final int var0, final int var1) {
@@ -260,7 +251,7 @@ public class IrisMathHelper {
     }
 
     public static long c(final int var0, final int var1, final int var2) {
-        long var3 = (long) (var0 * 3129871) ^ var2 * 116129781L ^ (long) var1;
+        long var3 = (long) (var0 * 3129871L) ^ var2 * 116129781L ^ (long) var1;
         var3 = var3 * var3 * 42317861L + var3 * 11L;
         return var3 >> 16;
     }
@@ -340,43 +331,37 @@ public class IrisMathHelper {
         float var9 = 0.0f;
         float var10 = 0.0f;
         switch (var3) {
-            case 0: {
+            case 0 -> {
                 var8 = var2;
                 var9 = var7;
                 var10 = var5;
-                break;
             }
-            case 1: {
+            case 1 -> {
                 var8 = var6;
                 var9 = var2;
                 var10 = var5;
-                break;
             }
-            case 2: {
+            case 2 -> {
                 var8 = var5;
                 var9 = var2;
                 var10 = var7;
-                break;
             }
-            case 3: {
+            case 3 -> {
                 var8 = var5;
                 var9 = var6;
                 var10 = var2;
-                break;
             }
-            case 4: {
+            case 4 -> {
                 var8 = var7;
                 var9 = var5;
                 var10 = var2;
-                break;
             }
-            case 5: {
+            case 5 -> {
                 var8 = var2;
                 var9 = var5;
                 var10 = var6;
-                break;
             }
-            default: {
+            default -> {
                 throw new RuntimeException("Something went wrong when converting from HSV to RGB. Input was " + var0 + ", " + var1 + ", " + var2);
             }
         }

src/main/java/com/volmit/iris/util/J.java

@@ -26,6 +26,7 @@ import java.util.function.Consumer;
 import java.util.function.Function;
 import java.util.function.Supplier;
 
+@SuppressWarnings("ALL")
 public class J {
     private static int tid = 0;
     private static final ExecutorService e = Executors.newCachedThreadPool(new ThreadFactory() {

src/main/java/com/volmit/iris/util/JSONArray.java

@@ -74,6 +74,7 @@ import java.util.Map;
  * @author JSON.org
  * @version 2015-07-22
  */
+@SuppressWarnings("ALL")
 public class JSONArray implements Iterable<Object> {
 
     /**
@@ -870,6 +871,7 @@ public class JSONArray implements Iterable<Object> {
      * @param other The other JSONArray
      * @return true if they are equal
      */
+    @SuppressWarnings("BooleanMethodIsAlwaysInverted")
     public boolean similar(Object other) {
         if (!(other instanceof JSONArray)) {
             return false;

src/main/java/com/volmit/iris/util/JSONML.java

@@ -39,7 +39,6 @@ public class JSONML {
      * @param ja        The JSONArray that is containing the current tag or null if we
      *                  are at the outermost level.
      * @return A JSONArray if the value is the outermost tag, otherwise null.
-     * @throws JSONException
      */
     private static Object parse(XMLTokener x, boolean arrayForm, JSONArray ja) throws JSONException {
         String attribute;
@@ -231,7 +230,6 @@ public class JSONML {
      *
      * @param string The source string.
      * @return A JSONArray containing the structured data from the XML string.
-     * @throws JSONException
      */
     public static JSONArray toJSONArray(String string) throws JSONException {
         return toJSONArray(new XMLTokener(string));
@@ -248,7 +246,6 @@ public class JSONML {
      *
      * @param x An XMLTokener.
      * @return A JSONArray containing the structured data from the XML string.
-     * @throws JSONException
      */
     public static JSONArray toJSONArray(XMLTokener x) throws JSONException {
         return (JSONArray) parse(x, true, null);
@@ -266,7 +263,6 @@ public class JSONML {
      *
      * @param x An XMLTokener of the XML source text.
      * @return A JSONObject containing the structured data from the XML string.
-     * @throws JSONException
      */
     public static JSONObject toJSONObject(XMLTokener x) throws JSONException {
         return (JSONObject) parse(x, false, null);
@@ -284,7 +280,6 @@ public class JSONML {
      *
      * @param string The XML source text.
      * @return A JSONObject containing the structured data from the XML string.
-     * @throws JSONException
      */
     public static JSONObject toJSONObject(String string) throws JSONException {
         return toJSONObject(new XMLTokener(string));
@@ -295,7 +290,6 @@ public class JSONML {
      *
      * @param ja A JSONArray.
      * @return An XML string.
-     * @throws JSONException
      */
     public static String toString(JSONArray ja) throws JSONException {
         int i;
@@ -346,7 +340,6 @@ public class JSONML {
         length = ja.length();
         if (i >= length) {
             sb.append('/');
-            sb.append('>');
         } else {
             sb.append('>');
             do {
@@ -367,8 +360,8 @@ public class JSONML {
             sb.append('<');
             sb.append('/');
             sb.append(tagName);
-            sb.append('>');
         }
+        sb.append('>');
         return sb.toString();
     }
 
@@ -380,7 +373,6 @@ public class JSONML {
      *
      * @param jo A JSONObject.
      * @return An XML string.
-     * @throws JSONException
      */
     public static String toString(JSONObject jo) throws JSONException {
         StringBuilder sb = new StringBuilder();
@@ -428,7 +420,6 @@ public class JSONML {
         ja = jo.optJSONArray("childNodes");
         if (ja == null) {
             sb.append('/');
-            sb.append('>');
         } else {
             sb.append('>');
             length = ja.length();
@@ -449,8 +440,8 @@ public class JSONML {
             sb.append('<');
             sb.append('/');
             sb.append(tagName);
-            sb.append('>');
         }
+        sb.append('>');
         return sb.toString();
     }
 }

src/main/java/com/volmit/iris/util/JSONObject.java

@@ -79,6 +79,7 @@ import java.util.Map.Entry;
  * @author JSON.org
  * @version 2015-07-22
  */
+@SuppressWarnings("ALL")
 public class JSONObject {
     /**
      * JSONObject.NULL is equivalent to the value that JavaScript calls null,
@@ -1299,6 +1300,7 @@ public class JSONObject {
      * @param other The other JSONObject
      * @return true if they are equal
      */
+    @SuppressWarnings("BooleanMethodIsAlwaysInverted")
     public boolean similar(Object other) {
         try {
             if (!(other instanceof JSONObject)) {

src/main/java/com/volmit/iris/util/JSONTokener.java

@@ -29,6 +29,7 @@ import java.io.*;
  * @author JSON.org
  * @version 2014-05-03
  */
+@SuppressWarnings("ALL")
 public class JSONTokener {
 
     private long character;

src/main/java/com/volmit/iris/util/JSONWriter.java

@@ -83,7 +83,7 @@ public class JSONWriter {
     /**
      * The writer that will receive the output.
      */
-    protected Writer writer;
+    protected final Writer writer;
 
     /**
      * Make a fresh JSONWriter. It can be used to build one JSON text.
@@ -283,7 +283,6 @@ public class JSONWriter {
      *
      * @param b A boolean.
      * @return this
-     * @throws JSONException
      */
     public JSONWriter value(boolean b) throws JSONException {
         return this.append(b ? "true" : "false");
@@ -305,7 +304,6 @@ public class JSONWriter {
      *
      * @param l A long.
      * @return this
-     * @throws JSONException
      */
     public JSONWriter value(long l) throws JSONException {
         return this.append(Long.toString(l));

src/main/java/com/volmit/iris/util/JarScanner.java

@@ -36,7 +36,7 @@ public class JarScanner {
      */
     public JarScanner(File jar, String superPackage) {
         this.jar = jar;
-        this.classes = new KSet<Class<?>>();
+        this.classes = new KSet<>();
         this.superPackage = superPackage;
     }
 

src/main/java/com/volmit/iris/util/KList.java

@@ -24,6 +24,7 @@ import java.util.*;
 import java.util.function.Function;
 import java.util.function.Predicate;
 
+@SuppressWarnings("ALL")
 public class KList<T> extends ArrayList<T> implements List<T> {
     private static final long serialVersionUID = -2892550695744823337L;
 
@@ -108,7 +109,6 @@ public class KList<T> extends ArrayList<T> implements List<T> {
      * @param f   the function
      * @return the new map
      */
-    @SuppressWarnings("hiding")
     public <V> KMap<T, V> asKeys(Function<T, V> f) {
         KMap<T, V> m = new KMap<T, V>();
         forEach((i) -> m.putNonNull(i, f.apply(i)));
@@ -249,7 +249,7 @@ public class KList<T> extends ArrayList<T> implements List<T> {
         StringBuilder b = new StringBuilder();
 
         for (String i : toStringList()) {
-            b.append(split + i);
+            b.append(split).append(i);
         }
 
         return b.substring(split.length());
@@ -272,7 +272,6 @@ public class KList<T> extends ArrayList<T> implements List<T> {
      * @param converter the converter that converts the forign type into this list type
      * @return this list (builder)
      */
-    @SuppressWarnings("hiding")
     public <V> KList<T> addFrom(List<V> v, Function<V, T> converter) {
         v.forEach((g) -> add(converter.apply(g)));
         return this;
@@ -286,7 +285,6 @@ public class KList<T> extends ArrayList<T> implements List<T> {
      * @param converter
      * @return
      */
-    @SuppressWarnings("hiding")
     public <V> KList<V> convert(Function<T, V> converter) {
         KList<V> v = new KList<V>();
         forEach((t) -> v.addNonNull(converter.apply(t)));

src/main/java/com/volmit/iris/util/KMap.java

@@ -24,7 +24,7 @@ import java.util.Enumeration;
 import java.util.Map;
 import java.util.concurrent.ConcurrentHashMap;
 
-@SuppressWarnings("hiding")
+@SuppressWarnings("ALL")
 public class KMap<K, V> extends ConcurrentHashMap<K, V> {
     private static final long serialVersionUID = 7288942695300448163L;
 

src/main/java/com/volmit/iris/util/LinkedTerrainChunk.java

@@ -28,6 +28,7 @@ import org.bukkit.block.data.BlockData;
 import org.bukkit.generator.ChunkGenerator.BiomeGrid;
 import org.bukkit.generator.ChunkGenerator.ChunkData;
 import org.bukkit.material.MaterialData;
+import org.jetbrains.annotations.NotNull;
 
 @SuppressWarnings("deprecation")
 public class LinkedTerrainChunk implements TerrainChunk {
@@ -69,6 +70,7 @@ public class LinkedTerrainChunk implements TerrainChunk {
         return (x, y, z, bb) -> INMS.get().forceBiomeInto(x, y, z, bb, storage);
     }
 
+    @NotNull
     @Override
     public Biome getBiome(int x, int z) {
         if (storage != null) {
@@ -82,6 +84,7 @@ public class LinkedTerrainChunk implements TerrainChunk {
         return biome3D.getBiome(x, 0, z);
     }
 
+    @NotNull
     @Override
     public Biome getBiome(int x, int y, int z) {
         if (storage != null) {
@@ -144,6 +147,7 @@ public class LinkedTerrainChunk implements TerrainChunk {
         rawChunkData.setBlock(x, y, z, blockData);
     }
 
+    @NotNull
     @Override
     public BlockData getBlockData(int x, int y, int z) {
         return rawChunkData.getBlockData(x, y, z);
@@ -151,39 +155,41 @@ public class LinkedTerrainChunk implements TerrainChunk {
 
     @Deprecated
     @Override
-    public void setBlock(int x, int y, int z, Material material) {
+    public void setBlock(int x, int y, int z, @NotNull Material material) {
         rawChunkData.setBlock(x, y, z, material);
     }
 
     @Deprecated
     @Override
-    public void setBlock(int x, int y, int z, MaterialData material) {
+    public void setBlock(int x, int y, int z, @NotNull MaterialData material) {
         rawChunkData.setBlock(x, y, z, material);
     }
 
     @Deprecated
     @Override
-    public void setRegion(int xMin, int yMin, int zMin, int xMax, int yMax, int zMax, Material material) {
+    public void setRegion(int xMin, int yMin, int zMin, int xMax, int yMax, int zMax, @NotNull Material material) {
         rawChunkData.setRegion(xMin, yMin, zMin, xMax, yMax, zMax, material);
     }
 
     @Deprecated
     @Override
-    public void setRegion(int xMin, int yMin, int zMin, int xMax, int yMax, int zMax, MaterialData material) {
+    public void setRegion(int xMin, int yMin, int zMin, int xMax, int yMax, int zMax, @NotNull MaterialData material) {
         rawChunkData.setRegion(xMin, yMin, zMin, xMax, yMax, zMax, material);
     }
 
     @Override
-    public void setRegion(int xMin, int yMin, int zMin, int xMax, int yMax, int zMax, BlockData blockData) {
+    public void setRegion(int xMin, int yMin, int zMin, int xMax, int yMax, int zMax, @NotNull BlockData blockData) {
         rawChunkData.setRegion(xMin, yMin, zMin, xMax, yMax, zMax, blockData);
     }
 
+    @NotNull
     @Deprecated
     @Override
     public Material getType(int x, int y, int z) {
         return rawChunkData.getType(x, y, z);
     }
 
+    @NotNull
     @Deprecated
     @Override
     public MaterialData getTypeAndData(int x, int y, int z) {

src/main/java/com/volmit/iris/util/ListTag.java

@@ -73,9 +73,9 @@ public final class ListTag extends Tag {
             append = "(\"" + this.getName() + "\")";
         }
         StringBuilder bldr = new StringBuilder();
-        bldr.append("TAG_List" + append + ": " + value.size() + " entries of type " + NBTUtils.getTypeName(type) + "\r\n{\r\n");
+        bldr.append("TAG_List").append(append).append(": ").append(value.size()).append(" entries of type ").append(NBTUtils.getTypeName(type)).append("\r\n{\r\n");
         for (Tag t : value) {
-            bldr.append("   " + t.toString().replaceAll("\r\n", "\r\n   ") + "\r\n");
+            bldr.append("   ").append(t.toString().replaceAll("\r\n", "\r\n   ")).append("\r\n");
         }
         bldr.append("}");
         return bldr.toString();

src/main/java/com/volmit/iris/util/Looper.java

@@ -21,6 +21,7 @@ package com.volmit.iris.util;
 import com.volmit.iris.Iris;
 
 public abstract class Looper extends Thread {
+    @SuppressWarnings("BusyWait")
     public void run() {
         while (!interrupted()) {
             try {
@@ -30,6 +31,7 @@ public abstract class Looper extends Thread {
                     break;
                 }
 
+                //noinspection BusyWait
                 Thread.sleep(m);
             } catch (InterruptedException e) {
                 break;

src/main/java/com/volmit/iris/util/M.java

@@ -90,8 +90,6 @@ public class M {
      * @param b  the second point (1, 0)
      * @param c  the third point (0, 1)
      * @param d  the fourth point (1, 1)
-     * @param tx the x
-     * @param ty the y
      * @return the bilerped value
      */
     public static double bilerp(double a, double b, double c, double d, double x, double y) {
@@ -138,6 +136,7 @@ public class M {
      * @return true if true
      */
     public static boolean r(Double d) {
+        //noinspection ReplaceNullCheck
         if (d == null) {
             return Math.random() < 0.5;
         }
@@ -252,7 +251,6 @@ public class M {
     /**
      * Biggest number
      *
-     * @param numbers the numbers
      * @return the biggest one
      */
     @SuppressWarnings("unchecked")
@@ -323,7 +321,7 @@ public class M {
         ScriptEngineManager mgr = new ScriptEngineManager();
         ScriptEngine scriptEngine = mgr.getEngineByName("JavaScript");
 
-        return Double.valueOf(scriptEngine.eval(expression).toString());
+        return Double.parseDouble(scriptEngine.eval(expression).toString());
     }
 
     /**

src/main/java/com/volmit/iris/util/MathHelper.java

@@ -96,30 +96,21 @@ public class MathHelper {
         if (var0 < var1) {
             return var1;
         }
-        if (var0 > var2) {
-            return var2;
-        }
-        return var0;
+        return Math.min(var0, var2);
     }
 
     public static float a(float var0, float var1, float var2) {
         if (var0 < var1) {
             return var1;
         }
-        if (var0 > var2) {
-            return var2;
-        }
-        return var0;
+        return Math.min(var0, var2);
     }
 
     public static double a(double var0, double var2, double var4) {
         if (var0 < var2) {
             return var2;
         }
-        if (var0 > var4) {
-            return var4;
-        }
-        return var0;
+        return Math.min(var0, var4);
     }
 
     public static double b(double var0, double var2, double var4) {
@@ -139,7 +130,7 @@ public class MathHelper {
         if (var2 < 0.0) {
             var2 = -var2;
         }
-        return var0 > var2 ? var0 : var2;
+        return Math.max(var0, var2);
     }
 
     public static int a(int var0, int var1) {
@@ -285,7 +276,7 @@ public class MathHelper {
     }
 
     public static long c(int var0, int var1, int var2) {
-        long var3 = (long) (var0 * 3129871) ^ (long) var2 * 116129781L ^ (long) var1;
+        long var3 = (var0 * 3129871L) ^ (long) var2 * 116129781L ^ (long) var1;
         var3 = var3 * var3 * 42317861L + var3 * 11L;
         return var3 >> 16;
     }
@@ -370,43 +361,37 @@ public class MathHelper {
         float var6 = var2 * (1.0f - var4 * var1);
         float var7 = var2 * (1.0f - (1.0f - var4) * var1);
         switch (var3) {
-            case 0: {
+            case 0 -> {
                 var8 = var2;
                 var9 = var7;
                 var10 = var5;
-                break;
             }
-            case 1: {
+            case 1 -> {
                 var8 = var6;
                 var9 = var2;
                 var10 = var5;
-                break;
             }
-            case 2: {
+            case 2 -> {
                 var8 = var5;
                 var9 = var2;
                 var10 = var7;
-                break;
             }
-            case 3: {
+            case 3 -> {
                 var8 = var5;
                 var9 = var6;
                 var10 = var2;
-                break;
             }
-            case 4: {
+            case 4 -> {
                 var8 = var7;
                 var9 = var5;
                 var10 = var2;
-                break;
             }
-            case 5: {
+            case 5 -> {
                 var8 = var2;
                 var9 = var5;
                 var10 = var6;
-                break;
             }
-            default: {
+            default -> {
                 throw new RuntimeException("Something went wrong when converting from HSV to RGB. Input was " + var0 + ", " + var1 + ", " + var2);
             }
         }

src/main/java/com/volmit/iris/util/Metrics.java

@@ -127,10 +127,11 @@ public class Metrics {
 
             // Inform the server owners about bStats
             config.options().header(
-                    "bStats collects some data for plugin authors like how many servers are using their plugins.\n" +
-                            "To honor their work, you should not disable it.\n" +
-                            "This has nearly no effect on the server performance!\n" +
-                            "Check out https://bStats.org/ to learn more :)"
+                    """
+                            bStats collects some data for plugin authors like how many servers are using their plugins.
+                            To honor their work, you should not disable it.
+                            This has nearly no effect on the server performance!
+                            Check out https://bStats.org/ to learn more :)"""
             ).copyDefaults(true);
             try {
                 config.save(configFile);

src/main/java/com/volmit/iris/util/MetricsLite.java

@@ -125,7 +125,11 @@ public class MetricsLite {
             config.addDefault("logResponseStatusText", false);
 
             // Inform the server owners about bStats
-            config.options().header("bStats collects some data for plugin authors like how many servers are using their plugins.\n" + "To honor their work, you should not disable it.\n" + "This has nearly no effect on the server performance!\n" + "Check out https://bStats.org/ to learn more :)").copyDefaults(true);
+            config.options().header("""
+                    bStats collects some data for plugin authors like how many servers are using their plugins.
+                    To honor their work, you should not disable it.
+                    This has nearly no effect on the server performance!
+                    Check out https://bStats.org/ to learn more :)""").copyDefaults(true);
             try {
                 config.save(configFile);
             } catch (IOException ignored) {

src/main/java/com/volmit/iris/util/MortarCommand.java

@@ -47,7 +47,7 @@ public abstract class MortarCommand implements ICommand {
     public MortarCommand(String node, String... nodes) {
         category = "";
         this.node = node;
-        this.nodes = new KList<String>(nodes);
+        this.nodes = new KList<>(nodes);
         requiredPermissions = new KList<>();
         children = buildChildren();
         description = "No Description";
@@ -83,7 +83,6 @@ public abstract class MortarCommand implements ICommand {
         for (MortarCommand i : getChildren()) {
             for (String j : i.getRequiredPermissions()) {
                 if (!sender.hasPermission(j)) {
-                    continue;
                 }
             }
 
@@ -132,16 +131,16 @@ public abstract class MortarCommand implements ICommand {
         if (a.length > past) {
             int p = past;
 
-            String m = "";
+            StringBuilder m = new StringBuilder();
 
             for (String i : a) {
                 p--;
                 if (p < 0) {
-                    m += i + ", ";
+                    m.append(i).append(", ");
                 }
             }
 
-            if (!m.trim().isEmpty()) {
+            if (!m.toString().trim().isEmpty()) {
                 sender.sendMessage("Parameters Ignored: " + m);
             }
         }

src/main/java/com/volmit/iris/util/MortarSender.java

@@ -107,47 +107,49 @@ public class MortarSender implements CommandSender {
     }
 
     @Override
-    public boolean isPermissionSet(String name) {
+    public boolean isPermissionSet(@NotNull String name) {
         return s.isPermissionSet(name);
     }
 
     @Override
-    public boolean isPermissionSet(Permission perm) {
+    public boolean isPermissionSet(@NotNull Permission perm) {
         return s.isPermissionSet(perm);
     }
 
     @Override
-    public boolean hasPermission(String name) {
+    public boolean hasPermission(@NotNull String name) {
         return s.hasPermission(name);
     }
 
     @Override
-    public boolean hasPermission(Permission perm) {
+    public boolean hasPermission(@NotNull Permission perm) {
         return s.hasPermission(perm);
     }
 
+    @NotNull
     @Override
-    public PermissionAttachment addAttachment(Plugin plugin, String name, boolean value) {
+    public PermissionAttachment addAttachment(@NotNull Plugin plugin, @NotNull String name, boolean value) {
         return s.addAttachment(plugin, name, value);
     }
 
+    @NotNull
     @Override
-    public PermissionAttachment addAttachment(Plugin plugin) {
+    public PermissionAttachment addAttachment(@NotNull Plugin plugin) {
         return s.addAttachment(plugin);
     }
 
     @Override
-    public PermissionAttachment addAttachment(Plugin plugin, String name, boolean value, int ticks) {
+    public PermissionAttachment addAttachment(@NotNull Plugin plugin, @NotNull String name, boolean value, int ticks) {
         return s.addAttachment(plugin, name, value, ticks);
     }
 
     @Override
-    public PermissionAttachment addAttachment(Plugin plugin, int ticks) {
+    public PermissionAttachment addAttachment(@NotNull Plugin plugin, int ticks) {
         return s.addAttachment(plugin, ticks);
     }
 
     @Override
-    public void removeAttachment(PermissionAttachment attachment) {
+    public void removeAttachment(@NotNull PermissionAttachment attachment) {
         s.removeAttachment(attachment);
     }
 
@@ -156,6 +158,7 @@ public class MortarSender implements CommandSender {
         s.recalculatePermissions();
     }
 
+    @NotNull
     @Override
     public Set<PermissionAttachmentInfo> getEffectivePermissions() {
         return s.getEffectivePermissions();
@@ -176,7 +179,7 @@ public class MortarSender implements CommandSender {
     }
 
     @Override
-    public void sendMessage(String message) {
+    public void sendMessage(@NotNull String message) {
         s.sendMessage(C.translateAlternateColorCodes('&', getTag()) + message);
     }
 
@@ -196,16 +199,19 @@ public class MortarSender implements CommandSender {
         sendMessage(messages);
     }
 
+    @NotNull
     @Override
     public Server getServer() {
         return s.getServer();
     }
 
+    @NotNull
     @Override
     public String getName() {
         return s.getName();
     }
 
+    @NotNull
     @Override
     public Spigot spigot() {
         return s.spigot();

src/main/java/com/volmit/iris/util/NBTConstants.java

@@ -21,8 +21,8 @@ package com.volmit.iris.util;
 import java.nio.charset.Charset;
 import java.nio.charset.StandardCharsets;
 
-/**
- * Changes : Neil Wightman - Support 19133 Tag_Int_Array tag
+/*
+  Changes : Neil Wightman - Support 19133 Tag_Int_Array tag
  */
 
 /**

src/main/java/com/volmit/iris/util/NBTInputStream.java

@@ -28,9 +28,9 @@ import java.util.List;
 import java.util.Map;
 import java.util.zip.GZIPInputStream;
 
-/**
- * Changes :
- * Neil Wightman - Support 19133 Tag_Int_Array tag
+/*
+  Changes :
+  Neil Wightman - Support 19133 Tag_Int_Array tag
  */
 
 /**
@@ -147,7 +147,7 @@ public final class NBTInputStream implements Closeable {
                 int childType = is.readByte();
                 length = is.readInt();
 
-                List<Tag> tagList = new ArrayList<Tag>();
+                List<Tag> tagList = new ArrayList<>();
                 for (int i = 0; i < length; i++) {
                     Tag tag = readTagPayload(childType, "", depth + 1);
                     if (tag instanceof EndTag) {
@@ -158,7 +158,7 @@ public final class NBTInputStream implements Closeable {
 
                 return new ListTag(name, NBTUtils.getTypeClass(childType), tagList);
             case NBTConstants.TYPE_COMPOUND:
-                Map<String, Tag> tagMap = new HashMap<String, Tag>();
+                Map<String, Tag> tagMap = new HashMap<>();
                 while (true) {
                     Tag tag = readTag(depth + 1);
                     if (tag instanceof EndTag) {

src/main/java/com/volmit/iris/util/NBTOutputStream.java

@@ -24,8 +24,8 @@ import java.io.IOException;
 import java.io.OutputStream;
 import java.util.List;
 import java.util.zip.GZIPOutputStream;
-/**
- * Changes : Neil Wightman - Support 19133 Tag_Int_Array tag
+/*
+  Changes : Neil Wightman - Support 19133 Tag_Int_Array tag
  */
 
 /**
@@ -39,6 +39,7 @@ import java.util.zip.GZIPOutputStream;
  *
  * @author Graham Edgecombe
  */
+@SuppressWarnings({"EmptyMethod", "JavaDoc"})
 public final class NBTOutputStream implements Closeable {
 
     /**
@@ -97,44 +98,19 @@ public final class NBTOutputStream implements Closeable {
     private void writeTagPayload(Tag tag) throws IOException {
         int type = NBTUtils.getTypeCode(tag.getClass());
         switch (type) {
-            case NBTConstants.TYPE_END:
-                writeEndTagPayload((EndTag) tag);
-                break;
-            case NBTConstants.TYPE_BYTE:
-                writeByteTagPayload((ByteTag) tag);
-                break;
-            case NBTConstants.TYPE_SHORT:
-                writeShortTagPayload((ShortTag) tag);
-                break;
-            case NBTConstants.TYPE_INT:
-                writeIntTagPayload((IntTag) tag);
-                break;
-            case NBTConstants.TYPE_LONG:
-                writeLongTagPayload((LongTag) tag);
-                break;
-            case NBTConstants.TYPE_FLOAT:
-                writeFloatTagPayload((FloatTag) tag);
-                break;
-            case NBTConstants.TYPE_DOUBLE:
-                writeDoubleTagPayload((DoubleTag) tag);
-                break;
-            case NBTConstants.TYPE_BYTE_ARRAY:
-                writeByteArrayTagPayload((ByteArrayTag) tag);
-                break;
-            case NBTConstants.TYPE_STRING:
-                writeStringTagPayload((StringTag) tag);
-                break;
-            case NBTConstants.TYPE_LIST:
-                writeListTagPayload((ListTag) tag);
-                break;
-            case NBTConstants.TYPE_COMPOUND:
-                writeCompoundTagPayload((CompoundTag) tag);
-                break;
-            case NBTConstants.TYPE_INT_ARRAY:
-                writeIntArrayTagPayload((IntArrayTag) tag);
-                break;
-            default:
-                throw new IOException("Invalid tag type: " + type + ".");
+            case NBTConstants.TYPE_END -> writeEndTagPayload((EndTag) tag);
+            case NBTConstants.TYPE_BYTE -> writeByteTagPayload((ByteTag) tag);
+            case NBTConstants.TYPE_SHORT -> writeShortTagPayload((ShortTag) tag);
+            case NBTConstants.TYPE_INT -> writeIntTagPayload((IntTag) tag);
+            case NBTConstants.TYPE_LONG -> writeLongTagPayload((LongTag) tag);
+            case NBTConstants.TYPE_FLOAT -> writeFloatTagPayload((FloatTag) tag);
+            case NBTConstants.TYPE_DOUBLE -> writeDoubleTagPayload((DoubleTag) tag);
+            case NBTConstants.TYPE_BYTE_ARRAY -> writeByteArrayTagPayload((ByteArrayTag) tag);
+            case NBTConstants.TYPE_STRING -> writeStringTagPayload((StringTag) tag);
+            case NBTConstants.TYPE_LIST -> writeListTagPayload((ListTag) tag);
+            case NBTConstants.TYPE_COMPOUND -> writeCompoundTagPayload((CompoundTag) tag);
+            case NBTConstants.TYPE_INT_ARRAY -> writeIntArrayTagPayload((IntArrayTag) tag);
+            default -> throw new IOException("Invalid tag type: " + type + ".");
         }
     }
 
@@ -187,8 +163,8 @@ public final class NBTOutputStream implements Closeable {
 
         os.writeByte(NBTUtils.getTypeCode(clazz));
         os.writeInt(size);
-        for (int i = 0; i < size; i++) {
-            writeTagPayload(tags.get(i));
+        for (Tag value : tags) {
+            writeTagPayload(value);
         }
     }
 

src/main/java/com/volmit/iris/util/NBTUtils.java

@@ -18,8 +18,8 @@
 
 package com.volmit.iris.util;
 
-/**
- * Changes : Neil Wightman - Support 19133 Tag_Int_Array tag
+/*
+  Changes : Neil Wightman - Support 19133 Tag_Int_Array tag
  */
 
 /**
@@ -110,34 +110,21 @@ public final class NBTUtils {
      * @throws IllegalArgumentException if the tag type is invalid.
      */
     public static Class<? extends Tag> getTypeClass(int type) {
-        switch (type) {
-            case NBTConstants.TYPE_END:
-                return EndTag.class;
-            case NBTConstants.TYPE_BYTE:
-                return ByteTag.class;
-            case NBTConstants.TYPE_SHORT:
-                return ShortTag.class;
-            case NBTConstants.TYPE_INT:
-                return IntTag.class;
-            case NBTConstants.TYPE_LONG:
-                return LongTag.class;
-            case NBTConstants.TYPE_FLOAT:
-                return FloatTag.class;
-            case NBTConstants.TYPE_DOUBLE:
-                return DoubleTag.class;
-            case NBTConstants.TYPE_BYTE_ARRAY:
-                return ByteArrayTag.class;
-            case NBTConstants.TYPE_STRING:
-                return StringTag.class;
-            case NBTConstants.TYPE_LIST:
-                return ListTag.class;
-            case NBTConstants.TYPE_COMPOUND:
-                return CompoundTag.class;
-            case NBTConstants.TYPE_INT_ARRAY:
-                return IntArrayTag.class;
-            default:
-                throw new IllegalArgumentException("Invalid tag type : " + type + ".");
-        }
+        return switch (type) {
+            case NBTConstants.TYPE_END -> EndTag.class;
+            case NBTConstants.TYPE_BYTE -> ByteTag.class;
+            case NBTConstants.TYPE_SHORT -> ShortTag.class;
+            case NBTConstants.TYPE_INT -> IntTag.class;
+            case NBTConstants.TYPE_LONG -> LongTag.class;
+            case NBTConstants.TYPE_FLOAT -> FloatTag.class;
+            case NBTConstants.TYPE_DOUBLE -> DoubleTag.class;
+            case NBTConstants.TYPE_BYTE_ARRAY -> ByteArrayTag.class;
+            case NBTConstants.TYPE_STRING -> StringTag.class;
+            case NBTConstants.TYPE_LIST -> ListTag.class;
+            case NBTConstants.TYPE_COMPOUND -> CompoundTag.class;
+            case NBTConstants.TYPE_INT_ARRAY -> IntArrayTag.class;
+            default -> throw new IllegalArgumentException("Invalid tag type : " + type + ".");
+        };
     }
 
     /**

src/main/java/com/volmit/iris/util/NMSVersion.java

@@ -129,7 +129,7 @@ public enum NMSVersion {
         try {
             Class.forName("org.bukkit.craftbukkit.v" + v + ".CraftWorld");
             return true;
-        } catch (Throwable e) {
+        } catch (Throwable ignored) {
 
         }
 

src/main/java/com/volmit/iris/util/NastyFunction.java

@@ -19,5 +19,5 @@
 package com.volmit.iris.util;
 
 public interface NastyFunction<T, R> {
-    R run(T t) throws Throwable;
+    R run(T t);
 }

src/main/java/com/volmit/iris/util/NastyFuture.java

@@ -19,5 +19,5 @@
 package com.volmit.iris.util;
 
 public interface NastyFuture<R> {
-    R run() throws Throwable;
+    R run();
 }

src/main/java/com/volmit/iris/util/NibbleArray.java

@@ -139,8 +139,8 @@ public class NibbleArray implements Writable {
     public String toBitsString(ByteOrder byteOrder) {
         StringJoiner joiner = new StringJoiner(" ");
 
-        for (int i = 0; i < data.length; i++) {
-            joiner.add(binaryString(data[i], byteOrder));
+        for (byte datum : data) {
+            joiner.add(binaryString(datum, byteOrder));
         }
 
         return joiner.toString();

src/main/java/com/volmit/iris/util/O.java

@@ -29,11 +29,10 @@ public class O<T> implements Observable<T> {
 
     @Override
     public O<T> set(T t) {
-        T x = t;
         this.t = t;
 
         if (observers != null && observers.hasElements()) {
-            observers.forEach((o) -> o.onChanged(x, t));
+            observers.forEach((o) -> o.onChanged(t, t));
         }
 
         return this;

src/main/java/com/volmit/iris/util/ObjectResourceLoader.java

@@ -151,7 +151,7 @@ public class ObjectResourceLoader extends ResourceLoader<IrisObject> {
         }
 
         KList<String> v = new KList<>(m);
-        possibleKeys = v.toArray(new String[v.size()]);
+        possibleKeys = v.toArray(new String[0]);
         return possibleKeys;
     }
 

src/main/java/com/volmit/iris/util/ParticleSenderLegacy.java

@@ -33,7 +33,7 @@ import java.lang.reflect.Method;
  *
  * @author MrMicky
  */
-@SuppressWarnings("deprecation")
+@SuppressWarnings({"deprecation", "JavaReflectionInvocation"})
 class ParticleSenderLegacy implements ParticleSender {
 
     private static final boolean SERVER_IS_1_8;
@@ -158,20 +158,18 @@ class ParticleSenderLegacy implements ParticleSender {
     private int[] toData(ParticleType particle, Object data) {
         Class<?> dataType = particle.getDataType();
         if (dataType == ItemStack.class) {
-            if (!(data instanceof ItemStack)) {
+            if (!(data instanceof ItemStack itemStack)) {
                 return SERVER_IS_1_8 ? new int[2] : new int[]{1, 0};
             }
 
-            ItemStack itemStack = (ItemStack) data;
             return new int[]{itemStack.getType().getId(), itemStack.getDurability()};
         }
 
         if (dataType == MaterialData.class) {
-            if (!(data instanceof MaterialData)) {
+            if (!(data instanceof MaterialData materialData)) {
                 return SERVER_IS_1_8 ? new int[1] : new int[]{1, 0};
             }
 
-            MaterialData materialData = (MaterialData) data;
             if (SERVER_IS_1_8) {
                 return new int[]{materialData.getItemType().getId() + (materialData.getData() << 12)};
             } else {

src/main/java/com/volmit/iris/util/ParticleType.java

@@ -161,19 +161,14 @@ public enum ParticleType {
     }
 
     public Class<?> getDataType() {
-        switch (this) {
-            case ITEM_CRACK:
-                return ItemStack.class;
-            case BLOCK_CRACK:
-            case BLOCK_DUST:
-            case FALLING_DUST:
-                //noinspection deprecation
-                return MaterialData.class;
-            case REDSTONE:
-                return Color.class;
-            default:
-                return Void.class;
-        }
+        return switch (this) {
+            case ITEM_CRACK -> ItemStack.class;
+            case BLOCK_CRACK, BLOCK_DUST, FALLING_DUST ->
+                    //noinspection deprecation
+                    MaterialData.class;
+            case REDSTONE -> Color.class;
+            default -> Void.class;
+        };
     }
 
     public static ParticleType getParticle(String particleName) {

src/main/java/com/volmit/iris/util/Queue.java

@@ -18,6 +18,7 @@
 
 package com.volmit.iris.util;
 
+@SuppressWarnings("ALL")
 public interface Queue<T> {
     Queue<T> queue(T t);
 

src/main/java/com/volmit/iris/util/QueueExecutor.java

@@ -23,7 +23,7 @@ public class QueueExecutor extends Looper {
     private boolean shutdown;
 
     public QueueExecutor() {
-        queue = new ShurikenQueue<Runnable>();
+        queue = new ShurikenQueue<>();
         shutdown = false;
     }
 

src/main/java/com/volmit/iris/util/RNG.java

@@ -45,7 +45,7 @@ public class RNG extends Random {
      * @param seed the seed (string)
      */
     public RNG(String seed) {
-        this(UUID.nameUUIDFromBytes(seed.getBytes(StandardCharsets.UTF_8)).getLeastSignificantBits() + UUID.nameUUIDFromBytes(seed.getBytes(StandardCharsets.UTF_8)).getMostSignificantBits() + (seed.length() * 32564));
+        this(UUID.nameUUIDFromBytes(seed.getBytes(StandardCharsets.UTF_8)).getLeastSignificantBits() + UUID.nameUUIDFromBytes(seed.getBytes(StandardCharsets.UTF_8)).getMostSignificantBits() + (seed.length() * 32564L));
     }
 
     public RNG nextParallelRNG(int signature) {

src/main/java/com/volmit/iris/util/ResourceLoader.java

@@ -99,7 +99,7 @@ public class ResourceLoader<T extends IrisRegistrant> {
         }
 
         KList<String> v = new KList<>(m);
-        possibleKeys = v.toArray(new String[v.size()]);
+        possibleKeys = v.toArray(new String[0]);
         return possibleKeys;
     }
 
@@ -140,8 +140,7 @@ public class ResourceLoader<T extends IrisRegistrant> {
         String key = name + "-" + cname;
 
         if (loadCache.containsKey(key)) {
-            T t = loadCache.get(key);
-            return t;
+            return loadCache.get(key);
         }
 
         lock.lock();

src/main/java/com/volmit/iris/util/RouterCommand.java

@@ -21,6 +21,7 @@ package com.volmit.iris.util;
 import org.bukkit.command.Command;
 import org.bukkit.command.CommandExecutor;
 import org.bukkit.command.CommandSender;
+import org.jetbrains.annotations.NotNull;
 
 /**
  * Assistive command router
@@ -44,19 +45,21 @@ public class RouterCommand extends org.bukkit.command.Command {
         this.ex = ex;
     }
 
+    @NotNull
     @Override
-    public Command setUsage(String u) {
+    public Command setUsage(@NotNull String u) {
         this.usage = u;
         return this;
     }
 
+    @NotNull
     @Override
     public String getUsage() {
         return usage;
     }
 
     @Override
-    public boolean execute(CommandSender sender, String commandLabel, String[] args) {
+    public boolean execute(@NotNull CommandSender sender, @NotNull String commandLabel, @NotNull String[] args) {
         return ex.onCommand(sender, this, commandLabel, args);
     }
 }

src/main/java/com/volmit/iris/util/SKConversion.java

@@ -28,7 +28,6 @@ import com.volmit.iris.object.IrisObject;
 
 import java.io.File;
 import java.io.FileInputStream;
-import java.io.FileNotFoundException;
 import java.io.IOException;
 
 public class SKConversion {
@@ -48,8 +47,6 @@ public class SKConversion {
             }
 
             o.write(out);
-        } catch (FileNotFoundException e) {
-            e.printStackTrace();
         } catch (IOException e) {
             e.printStackTrace();
         }

src/main/java/com/volmit/iris/util/ShurikenQueue.java

@@ -81,7 +81,7 @@ public class ShurikenQueue<T> implements Queue<T> {
 
     @Override
     public ShurikenQueue<T> clear() {
-        queue = new KList<T>();
+        queue = new KList<>();
         return this;
     }
 

src/main/java/com/volmit/iris/util/Spiraler.java

@@ -18,6 +18,7 @@
 
 package com.volmit.iris.util;
 
+@SuppressWarnings("EmptyMethod")
 public class Spiraler {
     int x, z, dx, dz, sizeX, sizeZ, t, maxI, i;
     int ox, oz;

src/main/java/com/volmit/iris/util/TaskExecutor.java

@@ -45,14 +45,11 @@ public class TaskExecutor {
                 return t;
             });
         } else if (threadLimit > 1) {
-            final ForkJoinWorkerThreadFactory factory = new ForkJoinWorkerThreadFactory() {
-                @Override
-                public ForkJoinWorkerThread newThread(ForkJoinPool pool) {
-                    final ForkJoinWorkerThread worker = ForkJoinPool.defaultForkJoinWorkerThreadFactory.newThread(pool);
-                    worker.setName(name + " " + xc++);
-                    worker.setPriority(priority);
-                    return worker;
-                }
+            final ForkJoinWorkerThreadFactory factory = pool -> {
+                final ForkJoinWorkerThread worker = ForkJoinPool.defaultForkJoinWorkerThreadFactory.newThread(pool);
+                worker.setName(name + " " + xc++);
+                worker.setPriority(priority);
+                return worker;
             };
 
             service = new ForkJoinPool(threadLimit, factory, null, false);
@@ -120,8 +117,9 @@ public class TaskExecutor {
             waiting:
             while (true) {
                 try {
+                    //noinspection BusyWait
                     Thread.sleep(0);
-                } catch (InterruptedException e1) {
+                } catch (InterruptedException ignored) {
 
                 }
 
@@ -150,6 +148,7 @@ public class TaskExecutor {
         }
     }
 
+    @SuppressWarnings("ClassCanBeRecord")
     @ToString
     public static class TaskResult {
         public TaskResult(double timeElapsed, int tasksExecuted, int tasksFailed, int tasksCompleted) {

src/main/java/com/volmit/iris/util/TerrainChunk.java

@@ -24,6 +24,7 @@ import org.bukkit.block.Biome;
 import org.bukkit.block.data.BlockData;
 import org.bukkit.generator.ChunkGenerator.BiomeGrid;
 import org.bukkit.generator.ChunkGenerator.ChunkData;
+import org.jetbrains.annotations.NotNull;
 
 public interface TerrainChunk extends BiomeGrid, ChunkData {
     static TerrainChunk create(World world) {
@@ -58,6 +59,7 @@ public interface TerrainChunk extends BiomeGrid, ChunkData {
      * @return Biome value
      * @deprecated biomes are now 3-dimensional
      */
+    @NotNull
     @Deprecated
     Biome getBiome(int x, int z);
 
@@ -69,6 +71,7 @@ public interface TerrainChunk extends BiomeGrid, ChunkData {
      * @param z - 0-15
      * @return Biome value
      */
+    @NotNull
     Biome getBiome(int x, int y, int z);
 
     /**
@@ -80,7 +83,7 @@ public interface TerrainChunk extends BiomeGrid, ChunkData {
      * @deprecated biomes are now 3-dimensional
      */
     @Deprecated
-    void setBiome(int x, int z, Biome bio);
+    void setBiome(int x, int z, @NotNull Biome bio);
 
     /**
      * Set biome at x, z within chunk being generated
@@ -90,7 +93,7 @@ public interface TerrainChunk extends BiomeGrid, ChunkData {
      * @param z   - 0-15
      * @param bio - Biome value
      */
-    void setBiome(int x, int y, int z, Biome bio);
+    void setBiome(int x, int y, int z, @NotNull Biome bio);
 
     /**
      * Get the maximum height for the chunk.
@@ -112,7 +115,7 @@ public interface TerrainChunk extends BiomeGrid, ChunkData {
      * @param z         the z location in the chunk from 0-15 inclusive
      * @param blockData the type to set the block to
      */
-    void setBlock(int x, int y, int z, BlockData blockData);
+    void setBlock(int x, int y, int z, @NotNull BlockData blockData);
 
     /**
      * Get the type and data of the block at x, y, z.
@@ -126,6 +129,7 @@ public interface TerrainChunk extends BiomeGrid, ChunkData {
      * @return the data of the block or the BlockData for air if x, y or z are
      * outside the chunk's bounds
      */
+    @NotNull
     BlockData getBlockData(int x, int y, int z);
 
     ChunkData getRaw();

src/main/java/com/volmit/iris/util/ThreadMonitor.java

@@ -47,6 +47,7 @@ public class ThreadMonitor extends Thread {
     public void run() {
         while (running) {
             try {
+                //noinspection BusyWait
                 Thread.sleep(0);
                 State s = monitor.getState();
                 if (lastState != s) {

src/main/java/com/volmit/iris/util/Tuple2d.java

@@ -311,9 +311,7 @@ public abstract class Tuple2d implements java.io.Serializable, Cloneable {
         try {
             Tuple2d t2 = (Tuple2d) t1;
             return (this.x == t2.x && this.y == t2.y);
-        } catch (NullPointerException e2) {
-            return false;
-        } catch (ClassCastException e1) {
+        } catch (NullPointerException | ClassCastException e2) {
             return false;
         }
 
@@ -363,19 +361,11 @@ public abstract class Tuple2d implements java.io.Serializable, Cloneable {
     public final void clamp(double min, double max, Tuple2d t) {
         if (t.x > max) {
             x = max;
-        } else if (t.x < min) {
-            x = min;
-        } else {
-            x = t.x;
-        }
+        } else x = Math.max(t.x, min);
 
         if (t.y > max) {
             y = max;
-        } else if (t.y < min) {
-            y = min;
-        } else {
-            y = t.y;
-        }
+        } else y = Math.max(t.y, min);
 
     }
 
@@ -388,17 +378,9 @@ public abstract class Tuple2d implements java.io.Serializable, Cloneable {
      * @param t   the source tuple, which will not be modified
      */
     public final void clampMin(double min, Tuple2d t) {
-        if (t.x < min) {
-            x = min;
-        } else {
-            x = t.x;
-        }
+        x = Math.max(t.x, min);
 
-        if (t.y < min) {
-            y = min;
-        } else {
-            y = t.y;
-        }
+        y = Math.max(t.y, min);
 
     }
 
@@ -411,17 +393,9 @@ public abstract class Tuple2d implements java.io.Serializable, Cloneable {
      * @param t   the source tuple, which will not be modified
      */
     public final void clampMax(double max, Tuple2d t) {
-        if (t.x > max) {
-            x = max;
-        } else {
-            x = t.x;
-        }
+        x = Math.min(t.x, max);
 
-        if (t.y > max) {
-            y = max;
-        } else {
-            y = t.y;
-        }
+        y = Math.min(t.y, max);
 
     }
 

src/main/java/com/volmit/iris/util/Tuple2f.java

@@ -313,9 +313,7 @@ public abstract class Tuple2f implements java.io.Serializable, Cloneable {
         try {
             Tuple2f t2 = (Tuple2f) t1;
             return (this.x == t2.x && this.y == t2.y);
-        } catch (NullPointerException e2) {
-            return false;
-        } catch (ClassCastException e1) {
+        } catch (NullPointerException | ClassCastException e2) {
             return false;
         }
 
@@ -365,19 +363,11 @@ public abstract class Tuple2f implements java.io.Serializable, Cloneable {
     public final void clamp(float min, float max, Tuple2f t) {
         if (t.x > max) {
             x = max;
-        } else if (t.x < min) {
-            x = min;
-        } else {
-            x = t.x;
-        }
+        } else x = Math.max(t.x, min);
 
         if (t.y > max) {
             y = max;
-        } else if (t.y < min) {
-            y = min;
-        } else {
-            y = t.y;
-        }
+        } else y = Math.max(t.y, min);
 
     }
 
@@ -390,17 +380,9 @@ public abstract class Tuple2f implements java.io.Serializable, Cloneable {
      * @param t   the source tuple, which will not be modified
      */
     public final void clampMin(float min, Tuple2f t) {
-        if (t.x < min) {
-            x = min;
-        } else {
-            x = t.x;
-        }
+        x = Math.max(t.x, min);
 
-        if (t.y < min) {
-            y = min;
-        } else {
-            y = t.y;
-        }
+        y = Math.max(t.y, min);
 
     }
 
@@ -413,17 +395,9 @@ public abstract class Tuple2f implements java.io.Serializable, Cloneable {
      * @param t   the source tuple, which will not be modified
      */
     public final void clampMax(float max, Tuple2f t) {
-        if (t.x > max) {
-            x = max;
-        } else {
-            x = t.x;
-        }
+        x = Math.min(t.x, max);
 
-        if (t.y > max) {
-            y = max;
-        } else {
-            y = t.y;
-        }
+        y = Math.min(t.y, max);
 
     }
 

src/main/java/com/volmit/iris/util/Tuple3d.java

@@ -361,9 +361,7 @@ public abstract class Tuple3d implements java.io.Serializable, Cloneable {
         try {
             Tuple3d t2 = (Tuple3d) t1;
             return (this.x == t2.x && this.y == t2.y && this.z == t2.z);
-        } catch (ClassCastException e1) {
-            return false;
-        } catch (NullPointerException e2) {
+        } catch (ClassCastException | NullPointerException e1) {
             return false;
         }
 
@@ -416,27 +414,15 @@ public abstract class Tuple3d implements java.io.Serializable, Cloneable {
     public final void clamp(double min, double max, Tuple3d t) {
         if (t.x > max) {
             x = max;
-        } else if (t.x < min) {
-            x = min;
-        } else {
-            x = t.x;
-        }
+        } else x = Math.max(t.x, min);
 
         if (t.y > max) {
             y = max;
-        } else if (t.y < min) {
-            y = min;
-        } else {
-            y = t.y;
-        }
+        } else y = Math.max(t.y, min);
 
         if (t.z > max) {
             z = max;
-        } else if (t.z < min) {
-            z = min;
-        } else {
-            z = t.z;
-        }
+        } else z = Math.max(t.z, min);
 
     }
 
@@ -457,23 +443,11 @@ public abstract class Tuple3d implements java.io.Serializable, Cloneable {
      * @param t   the source tuple, which will not be modified
      */
     public final void clampMin(double min, Tuple3d t) {
-        if (t.x < min) {
-            x = min;
-        } else {
-            x = t.x;
-        }
+        x = Math.max(t.x, min);
 
-        if (t.y < min) {
-            y = min;
-        } else {
-            y = t.y;
-        }
+        y = Math.max(t.y, min);
 
-        if (t.z < min) {
-            z = min;
-        } else {
-            z = t.z;
-        }
+        z = Math.max(t.z, min);
 
     }
 
@@ -494,23 +468,11 @@ public abstract class Tuple3d implements java.io.Serializable, Cloneable {
      * @param t   the source tuple, which will not be modified
      */
     public final void clampMax(double max, Tuple3d t) {
-        if (t.x > max) {
-            x = max;
-        } else {
-            x = t.x;
-        }
+        x = Math.min(t.x, max);
 
-        if (t.y > max) {
-            y = max;
-        } else {
-            y = t.y;
-        }
+        y = Math.min(t.y, max);
 
-        if (t.z > max) {
-            z = max;
-        } else {
-            z = t.z;
-        }
+        z = Math.min(t.z, max);
 
     }
 

src/main/java/com/volmit/iris/util/Tuple3f.java

@@ -346,9 +346,7 @@ public abstract class Tuple3f implements java.io.Serializable, Cloneable {
         try {
             Tuple3f t2 = (Tuple3f) t1;
             return (this.x == t2.x && this.y == t2.y && this.z == t2.z);
-        } catch (NullPointerException e2) {
-            return false;
-        } catch (ClassCastException e1) {
+        } catch (NullPointerException | ClassCastException e2) {
             return false;
         }
     }
@@ -411,27 +409,15 @@ public abstract class Tuple3f implements java.io.Serializable, Cloneable {
     public final void clamp(float min, float max, Tuple3f t) {
         if (t.x > max) {
             x = max;
-        } else if (t.x < min) {
-            x = min;
-        } else {
-            x = t.x;
-        }
+        } else x = Math.max(t.x, min);
 
         if (t.y > max) {
             y = max;
-        } else if (t.y < min) {
-            y = min;
-        } else {
-            y = t.y;
-        }
+        } else y = Math.max(t.y, min);
 
         if (t.z > max) {
             z = max;
-        } else if (t.z < min) {
-            z = min;
-        } else {
-            z = t.z;
-        }
+        } else z = Math.max(t.z, min);
 
     }
 
@@ -444,23 +430,11 @@ public abstract class Tuple3f implements java.io.Serializable, Cloneable {
      * @param t   the source tuple, which will not be modified
      */
     public final void clampMin(float min, Tuple3f t) {
-        if (t.x < min) {
-            x = min;
-        } else {
-            x = t.x;
-        }
+        x = Math.max(t.x, min);
 
-        if (t.y < min) {
-            y = min;
-        } else {
-            y = t.y;
-        }
+        y = Math.max(t.y, min);
 
-        if (t.z < min) {
-            z = min;
-        } else {
-            z = t.z;
-        }
+        z = Math.max(t.z, min);
 
     }
 
@@ -473,23 +447,11 @@ public abstract class Tuple3f implements java.io.Serializable, Cloneable {
      * @param t   the source tuple, which will not be modified
      */
     public final void clampMax(float max, Tuple3f t) {
-        if (t.x > max) {
-            x = max;
-        } else {
-            x = t.x;
-        }
+        x = Math.min(t.x, max);
 
-        if (t.y > max) {
-            y = max;
-        } else {
-            y = t.y;
-        }
+        y = Math.min(t.y, max);
 
-        if (t.z > max) {
-            z = max;
-        } else {
-            z = t.z;
-        }
+        z = Math.min(t.z, max);
 
     }
 

src/main/java/com/volmit/iris/util/Tuple4d.java

@@ -387,9 +387,7 @@ public abstract class Tuple4d implements java.io.Serializable, Cloneable {
             Tuple4d t2 = (Tuple4d) t1;
             return (this.x == t2.x && this.y == t2.y &&
                     this.z == t2.z && this.w == t2.w);
-        } catch (NullPointerException e2) {
-            return false;
-        } catch (ClassCastException e1) {
+        } catch (NullPointerException | ClassCastException e2) {
             return false;
         }
     }
@@ -466,35 +464,19 @@ public abstract class Tuple4d implements java.io.Serializable, Cloneable {
     public final void clamp(double min, double max, Tuple4d t) {
         if (t.x > max) {
             x = max;
-        } else if (t.x < min) {
-            x = min;
-        } else {
-            x = t.x;
-        }
+        } else x = Math.max(t.x, min);
 
         if (t.y > max) {
             y = max;
-        } else if (t.y < min) {
-            y = min;
-        } else {
-            y = t.y;
-        }
+        } else y = Math.max(t.y, min);
 
         if (t.z > max) {
             z = max;
-        } else if (t.z < min) {
-            z = min;
-        } else {
-            z = t.z;
-        }
+        } else z = Math.max(t.z, min);
 
         if (t.w > max) {
             w = max;
-        } else if (t.w < min) {
-            w = min;
-        } else {
-            w = t.w;
-        }
+        } else w = Math.max(t.w, min);
 
     }
 
@@ -515,29 +497,13 @@ public abstract class Tuple4d implements java.io.Serializable, Cloneable {
      * @param t   the source tuple, which will not be modified
      */
     public final void clampMin(double min, Tuple4d t) {
-        if (t.x < min) {
-            x = min;
-        } else {
-            x = t.x;
-        }
+        x = Math.max(t.x, min);
 
-        if (t.y < min) {
-            y = min;
-        } else {
-            y = t.y;
-        }
+        y = Math.max(t.y, min);
 
-        if (t.z < min) {
-            z = min;
-        } else {
-            z = t.z;
-        }
+        z = Math.max(t.z, min);
 
-        if (t.w < min) {
-            w = min;
-        } else {
-            w = t.w;
-        }
+        w = Math.max(t.w, min);
 
     }
 
@@ -558,23 +524,11 @@ public abstract class Tuple4d implements java.io.Serializable, Cloneable {
      * @param t   the source tuple, which will not be modified
      */
     public final void clampMax(double max, Tuple4d t) {
-        if (t.x > max) {
-            x = max;
-        } else {
-            x = t.x;
-        }
+        x = Math.min(t.x, max);
 
-        if (t.y > max) {
-            y = max;
-        } else {
-            y = t.y;
-        }
+        y = Math.min(t.y, max);
 
-        if (t.z > max) {
-            z = max;
-        } else {
-            z = t.z;
-        }
+        z = Math.min(t.z, max);
 
         if (t.w > max) {
             w = max;

src/main/java/com/volmit/iris/util/Tuple4f.java

@@ -374,9 +374,7 @@ public abstract class Tuple4f implements java.io.Serializable, Cloneable {
             Tuple4f t2 = (Tuple4f) t1;
             return (this.x == t2.x && this.y == t2.y &&
                     this.z == t2.z && this.w == t2.w);
-        } catch (NullPointerException e2) {
-            return false;
-        } catch (ClassCastException e1) {
+        } catch (NullPointerException | ClassCastException e2) {
             return false;
         }
     }
@@ -444,35 +442,19 @@ public abstract class Tuple4f implements java.io.Serializable, Cloneable {
     public final void clamp(float min, float max, Tuple4f t) {
         if (t.x > max) {
             x = max;
-        } else if (t.x < min) {
-            x = min;
-        } else {
-            x = t.x;
-        }
+        } else x = Math.max(t.x, min);
 
         if (t.y > max) {
             y = max;
-        } else if (t.y < min) {
-            y = min;
-        } else {
-            y = t.y;
-        }
+        } else y = Math.max(t.y, min);
 
         if (t.z > max) {
             z = max;
-        } else if (t.z < min) {
-            z = min;
-        } else {
-            z = t.z;
-        }
+        } else z = Math.max(t.z, min);
 
         if (t.w > max) {
             w = max;
-        } else if (t.w < min) {
-            w = min;
-        } else {
-            w = t.w;
-        }
+        } else w = Math.max(t.w, min);
 
     }
 
@@ -485,29 +467,13 @@ public abstract class Tuple4f implements java.io.Serializable, Cloneable {
      * @param t   the source tuple, which will not be modified
      */
     public final void clampMin(float min, Tuple4f t) {
-        if (t.x < min) {
-            x = min;
-        } else {
-            x = t.x;
-        }
+        x = Math.max(t.x, min);
 
-        if (t.y < min) {
-            y = min;
-        } else {
-            y = t.y;
-        }
+        y = Math.max(t.y, min);
 
-        if (t.z < min) {
-            z = min;
-        } else {
-            z = t.z;
-        }
+        z = Math.max(t.z, min);
 
-        if (t.w < min) {
-            w = min;
-        } else {
-            w = t.w;
-        }
+        w = Math.max(t.w, min);
 
 
     }
@@ -521,23 +487,11 @@ public abstract class Tuple4f implements java.io.Serializable, Cloneable {
      * @param t   the source tuple, which will not be modified
      */
     public final void clampMax(float max, Tuple4f t) {
-        if (t.x > max) {
-            x = max;
-        } else {
-            x = t.x;
-        }
+        x = Math.min(t.x, max);
 
-        if (t.y > max) {
-            y = max;
-        } else {
-            y = t.y;
-        }
+        y = Math.min(t.y, max);
 
-        if (t.z > max) {
-            z = max;
-        } else {
-            z = t.z;
-        }
+        z = Math.min(t.z, max);
 
         if (t.w > max) {
             w = max;

src/main/java/com/volmit/iris/util/UIElement.java

@@ -53,7 +53,7 @@ public class UIElement implements Element {
     }
 
     public Double clip(double value, double min, double max) {
-        return Double.valueOf(Math.min(max, Math.max(min, value)));
+        return Math.min(max, Math.max(min, value));
     }
 
     @Override
@@ -134,26 +134,32 @@ public class UIElement implements Element {
     public Element call(ElementEvent event, Element context) {
         try {
             switch (event) {
-                case DRAG_INTO:
+                case DRAG_INTO -> {
                     eDraggedInto.run(context);
                     return this;
-                case LEFT:
+                }
+                case LEFT -> {
                     eLeft.run(context);
                     return this;
-                case OTHER_DRAG_INTO:
+                }
+                case OTHER_DRAG_INTO -> {
                     eOtherDraggedInto.run(context);
                     return this;
-                case RIGHT:
+                }
+                case RIGHT -> {
                     eRight.run(context);
                     return this;
-                case SHIFT_LEFT:
+                }
+                case SHIFT_LEFT -> {
                     eShiftLeft.run(context);
                     return this;
-                case SHIFT_RIGHT:
+                }
+                case SHIFT_RIGHT -> {
                     eShiftRight.run(context);
                     return this;
+                }
             }
-        } catch (NullPointerException e) {
+        } catch (NullPointerException ignored) {
 
         } catch (Throwable e) {
             e.printStackTrace();

src/main/java/com/volmit/iris/util/UIStaticDecorator.java

@@ -20,6 +20,7 @@ package com.volmit.iris.util;
 
 import org.bukkit.Material;
 
+@SuppressWarnings("ClassCanBeRecord")
 public class UIStaticDecorator implements WindowDecorator {
     private final Element element;
 

src/main/java/com/volmit/iris/util/UIWindow.java

@@ -85,55 +85,31 @@ public class UIWindow implements Window, Listener {
 
             switch (e.getAction()) {
                 case CLONE_STACK:
-                    break;
-                case COLLECT_TO_CURSOR:
-                    break;
-                case DROP_ALL_CURSOR:
-                    break;
-                case DROP_ALL_SLOT:
-                    break;
-                case DROP_ONE_CURSOR:
-                    break;
-                case DROP_ONE_SLOT:
-                    break;
-                case HOTBAR_MOVE_AND_READD:
-                    break;
-                case HOTBAR_SWAP:
-                    break;
-                case MOVE_TO_OTHER_INVENTORY:
-                    break;
-                case NOTHING:
-                    break;
-                case PICKUP_ALL:
-                    break;
-                case PICKUP_HALF:
-                    break;
-                case PICKUP_ONE:
-                    break;
-                case PICKUP_SOME:
-                    break;
-                case PLACE_ALL:
-                    break;
-                case PLACE_ONE:
-                    break;
-                case PLACE_SOME:
-                    break;
-                case SWAP_WITH_CURSOR:
-                    break;
                 case UNKNOWN:
+                case SWAP_WITH_CURSOR:
+                case PLACE_SOME:
+                case PLACE_ONE:
+                case PLACE_ALL:
+                case PICKUP_SOME:
+                case PICKUP_ONE:
+                case PICKUP_HALF:
+                case PICKUP_ALL:
+                case NOTHING:
+                case MOVE_TO_OTHER_INVENTORY:
+                case HOTBAR_SWAP:
+                case HOTBAR_MOVE_AND_READD:
+                case DROP_ONE_SLOT:
+                case DROP_ONE_CURSOR:
+                case DROP_ALL_SLOT:
+                case DROP_ALL_CURSOR:
+                case COLLECT_TO_CURSOR:
                     break;
             }
 
             switch (e.getClick()) {
-                case CONTROL_DROP:
-                    break;
-                case CREATIVE:
-                    break;
                 case DOUBLE_CLICK:
                     doubleclicked = true;
                     break;
-                case DROP:
-                    break;
                 case LEFT:
 
                     clickcheck++;
@@ -162,10 +138,6 @@ public class UIWindow implements Window, Listener {
                         });
                     }
 
-                    break;
-                case MIDDLE:
-                    break;
-                case NUMBER_KEY:
                     break;
                 case RIGHT:
                     if (element != null) {
@@ -184,14 +156,15 @@ public class UIWindow implements Window, Listener {
                         element.call(ElementEvent.SHIFT_RIGHT, element);
                     }
                     break;
-                case WINDOW_BORDER_LEFT:
-                    break;
-                case WINDOW_BORDER_RIGHT:
-                    break;
-                case UNKNOWN:
-                    break;
                 case SWAP_OFFHAND:
-                    break;
+                case UNKNOWN:
+                case WINDOW_BORDER_RIGHT:
+                case WINDOW_BORDER_LEFT:
+                case NUMBER_KEY:
+                case MIDDLE:
+                case DROP:
+                case CREATIVE:
+                case CONTROL_DROP:
                 default:
                     break;
             }
@@ -414,7 +387,7 @@ public class UIWindow implements Window, Listener {
     }
 
     public Double clip(double value, double min, double max) {
-        return Double.valueOf(Math.min(max, Math.max(min, value)));
+        return Math.min(max, Math.max(min, value));
     }
 
     @Override
@@ -437,7 +410,7 @@ public class UIWindow implements Window, Listener {
     public Window updateInventory() {
         if (isVisible()) {
             ItemStack[] is = inventory.getContents();
-            KSet<ItemStack> isf = new KSet<ItemStack>();
+            @SuppressWarnings("MismatchedQueryAndUpdateOfCollection") KSet<ItemStack> isf = new KSet<>();
 
             for (int i = 0; i < is.length; i++) {
                 ItemStack isc = is[i];

src/main/java/com/volmit/iris/util/V.java

@@ -100,14 +100,14 @@ public class V {
     }
 
     public Object invoke(String method, Object... parameters) {
-        KList<Class<?>> par = new KList<Class<?>>();
+        KList<Class<?>> par = new KList<>();
 
         for (Object i : parameters) {
             par.add(i.getClass());
         }
 
         try {
-            return (local ? Violator.getDeclaredMethod(o.getClass(), method, par.toArray(new Class<?>[par.size()])) : Violator.getMethod(o.getClass(), method, par.toArray(new Class<?>[par.size()]))).invoke(o, parameters);
+            return (local ? Violator.getDeclaredMethod(o.getClass(), method, par.toArray(new Class<?>[0])) : Violator.getMethod(o.getClass(), method, par.toArray(new Class<?>[0]))).invoke(o, parameters);
         } catch (Throwable e) {
             if (!suppress) {
                 e.printStackTrace();

src/main/java/com/volmit/iris/util/VectorMath.java

@@ -32,16 +32,12 @@ import org.bukkit.util.Vector;
  */
 public class VectorMath {
     public static Vector scaleStatic(Axis x, Vector v, double amt) {
-        switch (x) {
-            case X:
-                return scaleX(v, amt);
-            case Y:
-                return scaleY(v, amt);
-            case Z:
-                return scaleZ(v, amt);
-        }
+        return switch (x) {
+            case X -> scaleX(v, amt);
+            case Y -> scaleY(v, amt);
+            case Z -> scaleZ(v, amt);
+        };
 
-        return null;
     }
 
     public static Vector scaleX(Vector v, double amt) {
@@ -227,7 +223,7 @@ public class VectorMath {
     }
 
     private static double round(double value, int precision) {
-        return Double.valueOf(Form.f(value, precision));
+        return Double.parseDouble(Form.f(value, precision));
     }
 
     public static Vector clip(Vector v, int decimals) {
@@ -247,9 +243,10 @@ public class VectorMath {
         u = axis.getX();
         v = axis.getY();
         w = axis.getZ();
-        double xPrime = u * (u * x + v * y + w * z) * (1d - Math.cos(theta)) + x * Math.cos(theta) + (-w * y + v * z) * Math.sin(theta);
-        double yPrime = v * (u * x + v * y + w * z) * (1d - Math.cos(theta)) + y * Math.cos(theta) + (w * x - u * z) * Math.sin(theta);
-        double zPrime = w * (u * x + v * y + w * z) * (1d - Math.cos(theta)) + z * Math.cos(theta) + (-v * x + u * y) * Math.sin(theta);
+        double f = u * x + v * y + w * z;
+        double xPrime = u * (f) * (1d - Math.cos(theta)) + x * Math.cos(theta) + (-w * y + v * z) * Math.sin(theta);
+        double yPrime = v * (f) * (1d - Math.cos(theta)) + y * Math.cos(theta) + (w * x - u * z) * Math.sin(theta);
+        double zPrime = w * (f) * (1d - Math.cos(theta)) + z * Math.cos(theta) + (-v * x + u * y) * Math.sin(theta);
 
         return clip(new Vector(xPrime, yPrime, zPrime), 4);
     }
@@ -262,7 +259,7 @@ public class VectorMath {
      * @return multiple faces, or one if the face is already simple
      */
     public static KList<BlockFace> split(BlockFace f) {
-        KList<BlockFace> faces = new KList<BlockFace>();
+        KList<BlockFace> faces = new KList<>();
 
         switch (f) {
             case DOWN:
@@ -441,7 +438,7 @@ public class VectorMath {
      * @return the shifted vectors
      */
     public static KList<Vector> shift(Vector vector, KList<Vector> vectors) {
-        return new KList<Vector>(new GListAdapter<Vector, Vector>() {
+        return new KList<>(new GListAdapter<Vector, Vector>() {
             @Override
             public Vector onAdapt(Vector from) {
                 return from.add(vector);

src/main/java/com/volmit/iris/util/Violator.java

@@ -25,7 +25,7 @@ import java.lang.reflect.Method;
 import java.util.concurrent.ConcurrentSkipListMap;
 
 public class Violator {
-    protected static ConcurrentSkipListMap<String, Object> nodes = new ConcurrentSkipListMap<String, Object>();
+    protected static final ConcurrentSkipListMap<String, Object> nodes = new ConcurrentSkipListMap<>();
 
     private static String id(Object o, Object h) {
         if (o instanceof Field) {
@@ -40,34 +40,32 @@ public class Violator {
             return ((Class<?>) o).getCanonicalName();
         }
 
-        if (o instanceof Constructor<?>) {
-            Constructor<?> co = (Constructor<?>) o;
+        if (o instanceof Constructor<?> co) {
 
-            String mx = "";
+            StringBuilder mx = new StringBuilder();
 
             for (Class<?> i : co.getParameterTypes()) {
-                mx += "," + i.getCanonicalName();
+                mx.append(",").append(i.getCanonicalName());
             }
 
-            mx = mx.length() >= 1 ? mx.substring(1) : mx;
+            mx = new StringBuilder(mx.length() >= 1 ? mx.substring(1) : mx.toString());
 
             return id(co.getDeclaringClass(), null) + "(" + mx + ")";
         }
 
         if (o instanceof Method) {
-            String mx = "";
+            StringBuilder mx = new StringBuilder();
 
             for (Class<?> i : ((Method) o).getParameterTypes()) {
-                mx += "," + i.getCanonicalName();
+                mx.append(",").append(i.getCanonicalName());
             }
 
-            mx = mx.length() >= 1 ? mx.substring(1) : mx;
+            mx = new StringBuilder(mx.length() >= 1 ? mx.substring(1) : mx.toString());
 
             return id(((Method) o).getDeclaringClass(), null) + "." + ((Method) o).getName() + "(" + mx + ")";
         }
 
-        if (o instanceof Annotation) {
-            Annotation a = (Annotation) o;
+        if (o instanceof Annotation a) {
             return "@" + a.annotationType().getCanonicalName() + "[" + id(h, null) + "]";
         }
 
@@ -78,6 +76,7 @@ public class Violator {
         nodes.put(n, o);
     }
 
+    @SuppressWarnings("BooleanMethodIsAlwaysInverted")
     private static boolean h(String n) {
         return nodes.containsKey(n);
     }
@@ -87,13 +86,13 @@ public class Violator {
     }
 
     public static Constructor<?> getConstructor(Class<?> c, Class<?>... params) throws NoSuchMethodException, SecurityException {
-        String mx = "";
+        StringBuilder mx = new StringBuilder();
 
         for (Class<?> i : params) {
-            mx += "," + i.getCanonicalName();
+            mx.append(",").append(i.getCanonicalName());
         }
 
-        mx = mx.length() >= 1 ? mx.substring(1) : mx;
+        mx = new StringBuilder(mx.length() >= 1 ? mx.substring(1) : mx.toString());
 
         if (!h(id(c, null) + "(" + mx + ")")) {
             Constructor<?> co = c.getConstructor(params);
@@ -148,13 +147,13 @@ public class Violator {
 
     public static Method getMethod(Class<?> c, String name, Class<?>... pars) throws Throwable {
         String iv = "";
-        String mx = "";
+        StringBuilder mx = new StringBuilder();
 
         for (Class<?> i : pars) {
-            mx += "," + i.getCanonicalName();
+            mx.append(",").append(i.getCanonicalName());
         }
 
-        mx = mx.length() >= 1 ? mx.substring(1) : mx;
+        mx = new StringBuilder(mx.length() >= 1 ? mx.substring(1) : mx.toString());
         iv = id(c, null) + "." + name + "(" + mx + ")";
 
         if (!h(iv)) {
@@ -168,14 +167,14 @@ public class Violator {
 
     @SuppressWarnings("unchecked")
     public static <T> T construct(Class<?> c, Object... parameters) {
-        KList<Class<?>> cv = new KList<Class<?>>();
+        KList<Class<?>> cv = new KList<>();
 
         for (Object i : parameters) {
             cv.add(i.getClass());
         }
 
         try {
-            Constructor<?> co = getConstructor(c, cv.toArray(new Class<?>[cv.size()]));
+            Constructor<?> co = getConstructor(c, cv.toArray(new Class<?>[0]));
             return (T) co.newInstance(parameters);
         } catch (Exception e) {
             e.printStackTrace();
@@ -186,13 +185,13 @@ public class Violator {
 
     public static Method getDeclaredMethod(Class<?> c, String name, Class<?>... pars) throws Throwable {
         String iv = "";
-        String mx = "";
+        StringBuilder mx = new StringBuilder();
 
         for (Class<?> i : pars) {
-            mx += "," + i.getCanonicalName();
+            mx.append(",").append(i.getCanonicalName());
         }
 
-        mx = mx.length() >= 1 ? mx.substring(1) : mx;
+        mx = new StringBuilder(mx.length() >= 1 ? mx.substring(1) : mx.toString());
         iv = id(c, null) + "." + name + "(" + mx + ")";
 
         if (!h(iv)) {
@@ -205,7 +204,7 @@ public class Violator {
     }
 
     @SuppressWarnings("unchecked")
-    public static <T extends Annotation> T getAnnotation(Class<?> c, Class<? extends T> a) throws Throwable {
+    public static <T extends Annotation> T getAnnotation(Class<?> c, Class<? extends T> a) {
         if (!h("@" + a.getCanonicalName() + "[" + c.getCanonicalName() + "]")) {
             T f = c.getAnnotation(a);
             p(id(f, c), f);
@@ -215,7 +214,7 @@ public class Violator {
     }
 
     @SuppressWarnings("unchecked")
-    public static <T extends Annotation> T getDeclaredAnnotation(Class<?> c, Class<? extends T> a) throws Throwable {
+    public static <T extends Annotation> T getDeclaredAnnotation(Class<?> c, Class<? extends T> a) {
         if (!h("@" + a.getCanonicalName() + "[" + c.getCanonicalName() + "]")) {
             T f = c.getDeclaredAnnotation(a);
             p(id(f, c), f);
@@ -225,7 +224,7 @@ public class Violator {
     }
 
     @SuppressWarnings("unchecked")
-    public static <T extends Annotation> T getAnnotation(Field c, Class<? extends T> a) throws Throwable {
+    public static <T extends Annotation> T getAnnotation(Field c, Class<? extends T> a) {
         if (!h("@" + a.getCanonicalName() + "[" + id(c, null) + "]")) {
             T f = c.getAnnotation(a);
             p(id(f, c), f);
@@ -235,7 +234,7 @@ public class Violator {
     }
 
     @SuppressWarnings("unchecked")
-    public static <T extends Annotation> T getDeclaredAnnotation(Field c, Class<? extends T> a) throws Throwable {
+    public static <T extends Annotation> T getDeclaredAnnotation(Field c, Class<? extends T> a) {
         if (!h("@" + a.getCanonicalName() + "[" + id(c, null) + "]")) {
             T f = c.getDeclaredAnnotation(a);
             p(id(f, c), f);
@@ -245,7 +244,7 @@ public class Violator {
     }
 
     @SuppressWarnings("unchecked")
-    public static <T extends Annotation> T getAnnotation(Method c, Class<? extends T> a) throws Throwable {
+    public static <T extends Annotation> T getAnnotation(Method c, Class<? extends T> a) {
         if (!h("@" + a.getCanonicalName() + "[" + id(c, null) + "]")) {
             T f = c.getAnnotation(a);
             p(id(f, c), f);
@@ -255,7 +254,7 @@ public class Violator {
     }
 
     @SuppressWarnings("unchecked")
-    public static <T extends Annotation> T getDeclaredAnnotation(Method c, Class<? extends T> a) throws Throwable {
+    public static <T extends Annotation> T getDeclaredAnnotation(Method c, Class<? extends T> a) {
         if (!h("@" + a.getCanonicalName() + "[" + id(c, null) + "]")) {
             T f = c.getDeclaredAnnotation(a);
             p(id(f, c), f);

src/main/java/com/volmit/iris/util/VirtualCommand.java

@@ -44,7 +44,7 @@ public class VirtualCommand {
 
     public VirtualCommand(ICommand command, String tag) {
         this.command = command;
-        children = new KMap<KList<String>, VirtualCommand>();
+        children = new KMap<>();
         this.tag = tag;
 
         for (Field i : command.getClass().getDeclaredFields()) {
@@ -117,7 +117,7 @@ public class VirtualCommand {
             return true;
         }
 
-        return command.handle(vs, chain.toArray(new String[chain.size()]));
+        return command.handle(vs, chain.toArray(new String[0]));
     }
 
     public KList<String> hitTab(CommandSender sender, KList<String> chain, String label) {
@@ -156,9 +156,10 @@ public class VirtualCommand {
             return null;
         }
 
-        return command.handleTab(vs, chain.toArray(new String[chain.size()]));
+        return command.handleTab(vs, chain.toArray(new String[0]));
     }
 
+    @SuppressWarnings("BooleanMethodIsAlwaysInverted")
     private boolean checkPermissions(CommandSender sender, ICommand command2) {
         boolean failed = false;
 

src/main/java/com/volmit/iris/util/VoidOutputStream.java

@@ -18,12 +18,11 @@
 
 package com.volmit.iris.util;
 
-import java.io.IOException;
 import java.io.OutputStream;
 
 public class VoidOutputStream extends OutputStream {
     @Override
-    public void write(int b) throws IOException {
+    public void write(int b) {
         // poof
     }
 }

src/main/java/com/volmit/iris/util/VolmitPlugin.java

@@ -45,8 +45,9 @@ import java.util.List;
 import java.util.Map;
 import java.util.SortedSet;
 
+@SuppressWarnings("EmptyMethod")
 public abstract class VolmitPlugin extends JavaPlugin implements Listener {
-    public static boolean bad = false;
+    public static final boolean bad = false;
     private KMap<KList<String>, VirtualCommand> commands;
     private KList<MortarCommand> commandCache;
     private KList<MortarPermission> permissionCache;
@@ -70,14 +71,17 @@ public abstract class VolmitPlugin extends JavaPlugin implements Listener {
 
             Field pluginsField = Bukkit.getPluginManager().getClass().getDeclaredField("plugins");
             pluginsField.setAccessible(true);
+            //noinspection unchecked
             plugins = (List<Plugin>) pluginsField.get(getServer().getPluginManager());
             Field lookupNamesField = Bukkit.getPluginManager().getClass().getDeclaredField("lookupNames");
             lookupNamesField.setAccessible(true);
+            //noinspection unchecked
             names = (Map<String, Plugin>) lookupNamesField.get(getServer().getPluginManager());
 
             try {
                 Field listenersField = Bukkit.getPluginManager().getClass().getDeclaredField("listeners");
                 listenersField.setAccessible(true);
+                //noinspection unchecked
                 listeners = (Map<Event, SortedSet<RegisteredListener>>) listenersField.get(getServer().getPluginManager());
             } catch (Throwable ignored) {
 
@@ -88,9 +92,10 @@ public abstract class VolmitPlugin extends JavaPlugin implements Listener {
             commandMap = (SimpleCommandMap) commandMapField.get(getServer().getPluginManager());
             Field knownCommandsField = SimpleCommandMap.class.getDeclaredField("knownCommands");
             knownCommandsField.setAccessible(true);
+            //noinspection unchecked
             commands = (Map<String, Command>) knownCommandsField.get(commandMap);
 
-        } catch (Throwable e) {
+        } catch (Throwable ignored) {
 
         }
 
@@ -106,8 +111,7 @@ public abstract class VolmitPlugin extends JavaPlugin implements Listener {
 
         for (Iterator<Map.Entry<String, Command>> it = commands.entrySet().iterator(); it.hasNext(); ) {
             Map.Entry<String, Command> entry = it.next();
-            if (entry.getValue() instanceof PluginCommand) {
-                PluginCommand c = (PluginCommand) entry.getValue();
+            if (entry.getValue() instanceof PluginCommand c) {
                 if (c.getPlugin() == plugin) {
                     c.unregister(commandMap);
                     it.remove();
@@ -163,7 +167,7 @@ public abstract class VolmitPlugin extends JavaPlugin implements Listener {
         registerCommands();
         registerControllers();
         Bukkit.getScheduler().scheduleSyncRepeatingTask(this, this::tickControllers, 0, 0);
-        J.a(() -> outputInfo());
+        J.a(this::outputInfo);
         registerListener(this);
         start();
     }
@@ -183,7 +187,7 @@ public abstract class VolmitPlugin extends JavaPlugin implements Listener {
             outputPluginInfo();
             outputCommandInfo();
             outputPermissionInfo();
-        } catch (Throwable e) {
+        } catch (Throwable ignored) {
 
         }
     }
@@ -199,7 +203,7 @@ public abstract class VolmitPlugin extends JavaPlugin implements Listener {
     }
 
     private void chain(MortarPermission i, FileConfiguration fc) {
-        KList<String> ff = new KList<String>();
+        KList<String> ff = new KList<>();
 
         for (MortarPermission j : i.getChildren()) {
             ff.add(j.getFullNode());
@@ -264,7 +268,7 @@ public abstract class VolmitPlugin extends JavaPlugin implements Listener {
         for (org.bukkit.permissions.Permission i : computePermissions()) {
             try {
                 Bukkit.getPluginManager().addPermission(i);
-            } catch (Throwable e) {
+            } catch (Throwable ignored) {
 
             }
         }
@@ -482,7 +486,7 @@ public abstract class VolmitPlugin extends JavaPlugin implements Listener {
     @Override
     public List<String> onTabComplete(@NotNull CommandSender sender, @NotNull Command command,
                                       @NotNull String alias, @NotNull String[] args) {
-        KList<String> chain = new KList<String>();
+        KList<String> chain = new KList<>();
 
         for (String i : args) {
             if (i.trim().isEmpty()) {
@@ -509,12 +513,12 @@ public abstract class VolmitPlugin extends JavaPlugin implements Listener {
     }
 
     @Override
-    public boolean onCommand(CommandSender sender, org.bukkit.command.Command command, String label, String[] args) {
+    public boolean onCommand(@NotNull CommandSender sender, @NotNull org.bukkit.command.Command command, @NotNull String label, @NotNull String[] args) {
         if (bad) {
             return false;
         }
 
-        KList<String> chain = new KList<String>();
+        KList<String> chain = new KList<>();
         chain.add(args);
 
         for (KList<String> i : commands.k()) {
@@ -619,7 +623,7 @@ public abstract class VolmitPlugin extends JavaPlugin implements Listener {
         for (VirtualCommand i : commands.v()) {
             try {
                 unregisterCommand(i.getCommand());
-            } catch (Throwable e) {
+            } catch (Throwable ignored) {
 
             }
         }
@@ -652,13 +656,13 @@ public abstract class VolmitPlugin extends JavaPlugin implements Listener {
     }
 
     public File getDataFile(String... strings) {
-        File f = new File(getDataFolder(), new KList<String>(strings).toString(File.separator));
+        File f = new File(getDataFolder(), new KList<>(strings).toString(File.separator));
         f.getParentFile().mkdirs();
         return f;
     }
 
     public File getDataFileList(String pre, String[] strings) {
-        KList<String> v = new KList<String>(strings);
+        KList<String> v = new KList<>(strings);
         v.add(0, pre);
         File f = new File(getDataFolder(), v.toString(File.separator));
         f.getParentFile().mkdirs();
@@ -670,7 +674,7 @@ public abstract class VolmitPlugin extends JavaPlugin implements Listener {
             return super.getDataFolder();
         }
 
-        File f = new File(getDataFolder(), new KList<String>(strings).toString(File.separator));
+        File f = new File(getDataFolder(), new KList<>(strings).toString(File.separator));
         f.mkdirs();
 
         return f;