1.5.23

src/main/java/net/momirealms/customcrops/ConfigReader.java

@@ -17,11 +17,18 @@
 
 package net.momirealms.customcrops;
 
+import dev.dejvokep.boostedyaml.YamlDocument;
+import dev.dejvokep.boostedyaml.dvs.versioning.BasicVersioning;
+import dev.dejvokep.boostedyaml.settings.dumper.DumperSettings;
+import dev.dejvokep.boostedyaml.settings.general.GeneralSettings;
+import dev.dejvokep.boostedyaml.settings.loader.LoaderSettings;
+import dev.dejvokep.boostedyaml.settings.updater.UpdaterSettings;
 import net.kyori.adventure.key.Key;
 import net.momirealms.customcrops.fertilizer.Fertilizer;
 import net.momirealms.customcrops.fertilizer.QualityCrop;
 import net.momirealms.customcrops.fertilizer.RetainingSoil;
 import net.momirealms.customcrops.fertilizer.SpeedGrow;
+import net.momirealms.customcrops.helper.Log;
 import net.momirealms.customcrops.integrations.protection.*;
 import net.momirealms.customcrops.integrations.skill.Aurelium;
 import net.momirealms.customcrops.integrations.skill.MMOCore;
@@ -40,6 +47,7 @@ import org.bukkit.configuration.file.FileConfiguration;
 import org.bukkit.configuration.file.YamlConfiguration;
 
 import java.io.File;
+import java.io.IOException;
 import java.util.*;
 
 public class ConfigReader {
@@ -104,6 +112,12 @@ public class ConfigReader {
 
         public static void loadConfig(){
 
+            try {
+                YamlDocument.create(new File(CustomCrops.instance.getDataFolder(), "config.yml"), CustomCrops.instance.getResource("config.yml"), GeneralSettings.DEFAULT, LoaderSettings.builder().setAutoUpdate(true).build(), DumperSettings.DEFAULT, UpdaterSettings.builder().setVersioning(new BasicVersioning("config-version")).build());
+            }catch (IOException e){
+                Log.warn(e.getMessage());
+            }
+
             //存读基本配置文件
             CustomCrops.instance.saveDefaultConfig();
             CustomCrops.instance.reloadConfig();

src/main/java/net/momirealms/customcrops/CustomCrops.java

@@ -21,6 +21,7 @@ import net.kyori.adventure.platform.bukkit.BukkitAudiences;
 import net.momirealms.customcrops.commands.Executor;
 import net.momirealms.customcrops.commands.Completer;
 import net.momirealms.customcrops.datamanager.*;
+import net.momirealms.customcrops.helper.LibraryLoader;
 import net.momirealms.customcrops.listener.*;
 import net.momirealms.customcrops.timer.CropTimer;
 import net.momirealms.customcrops.utils.AdventureManager;
@@ -52,6 +53,12 @@ public final class CustomCrops extends JavaPlugin {
     public SeasonManager getSeasonManager() { return seasonManager; }
     public PotManager getPotManager() { return potManager; }
 
+    @Override
+    public void onLoad(){
+        instance = this;
+        LibraryLoader.load("dev.dejvokep","boosted-yaml","1.3","https://repo.maven.apache.org/maven2/");
+    }
+
     @Override
     public void onEnable() {
 
@@ -106,16 +113,16 @@ public final class CustomCrops extends JavaPlugin {
             this.cropManager.saveData();
             this.cropManager = null;
         }
-        if (this.potManager != null){
-            this.potManager.saveData();
-            this.potManager = null;
-        }
         if (this.sprinklerManager != null){
             this.sprinklerManager.cleanData();
             this.sprinklerManager.updateData();
             this.sprinklerManager.saveData();
             this.sprinklerManager = null;
         }
+        if (this.potManager != null){
+            this.potManager.saveData();
+            this.potManager = null;
+        }
         if (ConfigReader.Season.enable && !ConfigReader.Season.seasonChange && this.seasonManager != null){
             this.seasonManager.saveData();
             this.seasonManager = null;

src/main/java/net/momirealms/customcrops/helper/LibraryLoader.java

@@ -0,0 +1,201 @@
+/*
+ * This file is part of helper, licensed under the MIT License.
+ *
+ *  Copyright (c) lucko (Luck) <luck@lucko.me>
+ *  Copyright (c) contributors
+ *
+ *  Permission is hereby granted, free of charge, to any person obtaining a copy
+ *  of this software and associated documentation files (the "Software"), to deal
+ *  in the Software without restriction, including without limitation the rights
+ *  to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+ *  copies of the Software, and to permit persons to whom the Software is
+ *  furnished to do so, subject to the following conditions:
+ *
+ *  The above copyright notice and this permission notice shall be included in all
+ *  copies or substantial portions of the Software.
+ *
+ *  THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ *  IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ *  FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+ *  AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ *  LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+ *  OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+ *  SOFTWARE.
+ */
+
+package net.momirealms.customcrops.helper;
+
+import com.google.common.base.Supplier;
+import com.google.common.base.Suppliers;
+
+import net.momirealms.customcrops.CustomCrops;
+import org.apache.commons.lang.StringUtils;
+
+import java.io.File;
+import java.io.InputStream;
+import java.net.MalformedURLException;
+import java.net.URL;
+import java.net.URLClassLoader;
+import java.nio.file.Files;
+import java.util.Objects;
+
+/**
+ * Resolves {@link MavenLibrary} annotations for a class, and loads the dependency
+ * into the classloader.
+ */
+@NonnullByDefault
+public final class LibraryLoader {
+
+    @SuppressWarnings("Guava")
+    private static final Supplier<URLClassLoaderAccess> URL_INJECTOR = Suppliers.memoize(() -> URLClassLoaderAccess.create((URLClassLoader) CustomCrops.instance.getClass().getClassLoader()));
+
+    /**
+     * Resolves all {@link MavenLibrary} annotations on the given object.
+     *
+     * @param object the object to load libraries for.
+     */
+    public static void loadAll(Object object) {
+        loadAll(object.getClass());
+    }
+
+    /**
+     * Resolves all {@link MavenLibrary} annotations on the given class.
+     *
+     * @param clazz the class to load libraries for.
+     */
+    public static void loadAll(Class<?> clazz) {
+        MavenLibrary[] libs = clazz.getDeclaredAnnotationsByType(MavenLibrary.class);
+        if (libs == null) {
+            return;
+        }
+
+        for (MavenLibrary lib : libs) {
+            load(lib.groupId(), lib.artifactId(), lib.version(), lib.repo().url());
+        }
+    }
+
+    public static void load(String groupId, String artifactId, String version, String repoUrl) {
+        load(new Dependency(groupId, artifactId, version, repoUrl));
+    }
+
+    public static void load(Dependency d) {
+        //Log.info(String.format("Loading dependency %s:%s:%s from %s", d.getGroupId(), d.getArtifactId(), d.getVersion(), d.getRepoUrl()));
+        String name = d.getArtifactId() + "-" + d.getVersion();
+
+        File saveLocation = new File(getLibFolder(d), name + ".jar");
+        if (!saveLocation.exists()) {
+
+            try {
+                Log.info("Dependency '" + name + "' is not already in the libraries folder. Attempting to download...");
+                URL url = d.getUrl();
+
+                try (InputStream is = url.openStream()) {
+                    Files.copy(is, saveLocation.toPath());
+                    Log.info("Dependency '" + name + "' successfully downloaded.");
+                }
+
+            } catch (Exception e) {
+                e.printStackTrace();
+            }
+        }
+
+        if (!saveLocation.exists()) {
+            throw new RuntimeException("Unable to download dependency: " + d.toString());
+        }
+
+        try {
+            URL_INJECTOR.get().addURL(saveLocation.toURI().toURL());
+        } catch (Exception e) {
+            throw new RuntimeException("Unable to load dependency: " + saveLocation.toString(), e);
+        }
+    }
+
+    private static File getLibFolder(Dependency dependency) {
+        File pluginDataFolder = CustomCrops.instance.getDataFolder();
+        File serverDir = pluginDataFolder.getParentFile().getParentFile();
+
+        File helperDir = new File(serverDir, "libraries");
+        String[] split = StringUtils.split(dependency.getGroupId(), ".");
+        File jarDir;
+        if (split.length > 1){
+            jarDir = new File(helperDir, split[0] + File.separator + split[1] + File.separator + dependency.artifactId + File.separator + dependency.version );
+        }else {
+            jarDir = new File(helperDir, dependency.getGroupId() + File.separator + dependency.artifactId + File.separator + dependency.version );
+        }
+        jarDir.mkdirs();
+        return jarDir;
+    }
+
+    @NonnullByDefault
+    public static final class Dependency {
+        private final String groupId;
+        private final String artifactId;
+        private final String version;
+        private final String repoUrl;
+
+        public Dependency(String groupId, String artifactId, String version, String repoUrl) {
+            this.groupId = Objects.requireNonNull(groupId, "groupId");
+            this.artifactId = Objects.requireNonNull(artifactId, "artifactId");
+            this.version = Objects.requireNonNull(version, "version");
+            this.repoUrl = Objects.requireNonNull(repoUrl, "repoUrl");
+        }
+
+        public String getGroupId() {
+            return this.groupId;
+        }
+
+        public String getArtifactId() {
+            return this.artifactId;
+        }
+
+        public String getVersion() {
+            return this.version;
+        }
+
+        public String getRepoUrl() {
+            return this.repoUrl;
+        }
+
+        public URL getUrl() throws MalformedURLException {
+            String repo = this.repoUrl;
+            if (!repo.endsWith("/")) {
+                repo += "/";
+            }
+            repo += "%s/%s/%s/%s-%s.jar";
+
+            String url = String.format(repo, this.groupId.replace(".", "/"), this.artifactId, this.version, this.artifactId, this.version);
+            return new URL(url);
+        }
+
+        @Override
+        public boolean equals(Object o) {
+            if (o == this) return true;
+            if (!(o instanceof Dependency)) return false;
+            final Dependency other = (Dependency) o;
+            return this.getGroupId().equals(other.getGroupId()) &&
+                    this.getArtifactId().equals(other.getArtifactId()) &&
+                    this.getVersion().equals(other.getVersion()) &&
+                    this.getRepoUrl().equals(other.getRepoUrl());
+        }
+
+        @Override
+        public int hashCode() {
+            final int PRIME = 59;
+            int result = 1;
+            result = result * PRIME + this.getGroupId().hashCode();
+            result = result * PRIME + this.getArtifactId().hashCode();
+            result = result * PRIME + this.getVersion().hashCode();
+            result = result * PRIME + this.getRepoUrl().hashCode();
+            return result;
+        }
+
+        @Override
+        public String toString() {
+            return "LibraryLoader.Dependency(" +
+                    "groupId=" + this.getGroupId() + ", " +
+                    "artifactId=" + this.getArtifactId() + ", " +
+                    "version=" + this.getVersion() + ", " +
+                    "repoUrl=" + this.getRepoUrl() + ")";
+        }
+    }
+}

src/main/java/net/momirealms/customcrops/helper/Log.java

@@ -0,0 +1,64 @@
+/*
+ * This file is part of helper, licensed under the MIT License.
+ *
+ *  Copyright (c) lucko (Luck) <luck@lucko.me>
+ *  Copyright (c) contributors
+ *
+ *  Permission is hereby granted, free of charge, to any person obtaining a copy
+ *  of this software and associated documentation files (the "Software"), to deal
+ *  in the Software without restriction, including without limitation the rights
+ *  to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+ *  copies of the Software, and to permit persons to whom the Software is
+ *  furnished to do so, subject to the following conditions:
+ *
+ *  The above copyright notice and this permission notice shall be included in all
+ *  copies or substantial portions of the Software.
+ *
+ *  THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ *  IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ *  FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+ *  AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ *  LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+ *  OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+ *  SOFTWARE.
+ */
+
+package net.momirealms.customcrops.helper;
+
+import net.momirealms.customcrops.CustomCrops;
+import org.bukkit.Bukkit;
+
+import java.util.logging.Level;
+
+import javax.annotation.Nonnull;
+
+/**
+ * Utility for quickly accessing a logger instance without using {@link Bukkit#getLogger()}
+ */
+public final class Log {
+
+    public static void info(@Nonnull String s) {
+        CustomCrops.instance.getLogger().info(s);
+    }
+
+    public static void warn(@Nonnull String s) {
+        CustomCrops.instance.getLogger().warning(s);
+    }
+
+    public static void severe(@Nonnull String s) {
+        CustomCrops.instance.getLogger().severe(s);
+    }
+
+    public static void warn(@Nonnull String s, Throwable t) {
+        CustomCrops.instance.getLogger().log(Level.WARNING, s, t);
+    }
+
+    public static void severe(@Nonnull String s, Throwable t) {
+        CustomCrops.instance.getLogger().log(Level.SEVERE, s, t);
+    }
+
+    private Log() {
+        throw new UnsupportedOperationException("This class cannot be instantiated");
+    }
+
+}

src/main/java/net/momirealms/customcrops/helper/MavenLibraries.java

@@ -0,0 +1,47 @@
+/*
+ * This file is part of helper, licensed under the MIT License.
+ *
+ *  Copyright (c) lucko (Luck) <luck@lucko.me>
+ *  Copyright (c) contributors
+ *
+ *  Permission is hereby granted, free of charge, to any person obtaining a copy
+ *  of this software and associated documentation files (the "Software"), to deal
+ *  in the Software without restriction, including without limitation the rights
+ *  to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+ *  copies of the Software, and to permit persons to whom the Software is
+ *  furnished to do so, subject to the following conditions:
+ *
+ *  The above copyright notice and this permission notice shall be included in all
+ *  copies or substantial portions of the Software.
+ *
+ *  THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ *  IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ *  FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+ *  AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ *  LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+ *  OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+ *  SOFTWARE.
+ */
+
+package net.momirealms.customcrops.helper;
+
+import java.lang.annotation.Documented;
+import java.lang.annotation.ElementType;
+import java.lang.annotation.Retention;
+import java.lang.annotation.RetentionPolicy;
+import java.lang.annotation.Target;
+
+import javax.annotation.Nonnull;
+
+/**
+ * Annotation to indicate the required libraries for a class.
+ */
+@Documented
+@Target(ElementType.TYPE)
+@Retention(RetentionPolicy.RUNTIME)
+public @interface MavenLibraries {
+
+    @Nonnull
+    MavenLibrary[] value() default {};
+
+}

src/main/java/net/momirealms/customcrops/helper/MavenLibrary.java

@@ -0,0 +1,78 @@
+/*
+ * This file is part of helper, licensed under the MIT License.
+ *
+ *  Copyright (c) lucko (Luck) <luck@lucko.me>
+ *  Copyright (c) contributors
+ *
+ *  Permission is hereby granted, free of charge, to any person obtaining a copy
+ *  of this software and associated documentation files (the "Software"), to deal
+ *  in the Software without restriction, including without limitation the rights
+ *  to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+ *  copies of the Software, and to permit persons to whom the Software is
+ *  furnished to do so, subject to the following conditions:
+ *
+ *  The above copyright notice and this permission notice shall be included in all
+ *  copies or substantial portions of the Software.
+ *
+ *  THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ *  IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ *  FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+ *  AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ *  LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+ *  OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+ *  SOFTWARE.
+ */
+
+package net.momirealms.customcrops.helper;
+
+import java.lang.annotation.Documented;
+import java.lang.annotation.ElementType;
+import java.lang.annotation.Repeatable;
+import java.lang.annotation.Retention;
+import java.lang.annotation.RetentionPolicy;
+import java.lang.annotation.Target;
+
+import javax.annotation.Nonnull;
+
+/**
+ * Annotation to indicate a required library for a class.
+ */
+@Documented
+@Repeatable(MavenLibraries.class)
+@Target(ElementType.TYPE)
+@Retention(RetentionPolicy.RUNTIME)
+public @interface MavenLibrary {
+
+    /**
+     * The group id of the library
+     *
+     * @return the group id of the library
+     */
+    @Nonnull
+    String groupId();
+
+    /**
+     * The artifact id of the library
+     *
+     * @return the artifact id of the library
+     */
+    @Nonnull
+    String artifactId();
+
+    /**
+     * The version of the library
+     *
+     * @return the version of the library
+     */
+    @Nonnull
+    String version();
+
+    /**
+     * The repo where the library can be obtained from
+     *
+     * @return the repo where the library can be obtained from
+     */
+    @Nonnull
+    Repository repo() default @Repository(url = "https://repo1.maven.org/maven2");
+
+}

src/main/java/net/momirealms/customcrops/helper/NonnullByDefault.java

@@ -0,0 +1,46 @@
+/*
+ * This file is part of helper, licensed under the MIT License.
+ *
+ *  Copyright (c) lucko (Luck) <luck@lucko.me>
+ *  Copyright (c) contributors
+ *
+ *  Permission is hereby granted, free of charge, to any person obtaining a copy
+ *  of this software and associated documentation files (the "Software"), to deal
+ *  in the Software without restriction, including without limitation the rights
+ *  to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+ *  copies of the Software, and to permit persons to whom the Software is
+ *  furnished to do so, subject to the following conditions:
+ *
+ *  The above copyright notice and this permission notice shall be included in all
+ *  copies or substantial portions of the Software.
+ *
+ *  THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ *  IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ *  FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+ *  AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ *  LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+ *  OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+ *  SOFTWARE.
+ */
+
+package net.momirealms.customcrops.helper;
+
+import java.lang.annotation.Documented;
+import java.lang.annotation.ElementType;
+import java.lang.annotation.Retention;
+import java.lang.annotation.RetentionPolicy;
+
+import javax.annotation.Nonnull;
+import javax.annotation.meta.TypeQualifierDefault;
+
+@Nonnull
+@Documented
+@TypeQualifierDefault({
+        ElementType.FIELD,
+        ElementType.METHOD,
+        ElementType.PARAMETER
+})
+@Retention(RetentionPolicy.RUNTIME)
+public @interface NonnullByDefault {
+
+}

src/main/java/net/momirealms/customcrops/helper/Repository.java

@@ -0,0 +1,52 @@
+/*
+ * This file is part of helper, licensed under the MIT License.
+ *
+ *  Copyright (c) lucko (Luck) <luck@lucko.me>
+ *  Copyright (c) contributors
+ *
+ *  Permission is hereby granted, free of charge, to any person obtaining a copy
+ *  of this software and associated documentation files (the "Software"), to deal
+ *  in the Software without restriction, including without limitation the rights
+ *  to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+ *  copies of the Software, and to permit persons to whom the Software is
+ *  furnished to do so, subject to the following conditions:
+ *
+ *  The above copyright notice and this permission notice shall be included in all
+ *  copies or substantial portions of the Software.
+ *
+ *  THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ *  IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ *  FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+ *  AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ *  LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+ *  OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+ *  SOFTWARE.
+ */
+
+package net.momirealms.customcrops.helper;
+
+import java.lang.annotation.Documented;
+import java.lang.annotation.ElementType;
+import java.lang.annotation.Retention;
+import java.lang.annotation.RetentionPolicy;
+import java.lang.annotation.Target;
+
+import javax.annotation.Nonnull;
+
+/**
+ * Represents a maven repository.
+ */
+@Documented
+@Target(ElementType.LOCAL_VARIABLE)
+@Retention(RetentionPolicy.RUNTIME)
+public @interface Repository {
+
+    /**
+     * Gets the base url of the repository.
+     *
+     * @return the base url of the repository
+     */
+    @Nonnull
+    String url();
+
+}

src/main/java/net/momirealms/customcrops/helper/URLClassLoaderAccess.java

@@ -0,0 +1,139 @@
+/*
+ * This file is part of helper, licensed under the MIT License.
+ *
+ *  Copyright (c) lucko (Luck) <luck@lucko.me>
+ *  Copyright (c) contributors
+ *
+ *  Permission is hereby granted, free of charge, to any person obtaining a copy
+ *  of this software and associated documentation files (the "Software"), to deal
+ *  in the Software without restriction, including without limitation the rights
+ *  to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+ *  copies of the Software, and to permit persons to whom the Software is
+ *  furnished to do so, subject to the following conditions:
+ *
+ *  The above copyright notice and this permission notice shall be included in all
+ *  copies or substantial portions of the Software.
+ *
+ *  THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ *  IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ *  FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+ *  AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ *  LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+ *  OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+ *  SOFTWARE.
+ */
+
+package net.momirealms.customcrops.helper;
+
+import java.lang.reflect.Field;
+import java.net.URL;
+import java.net.URLClassLoader;
+import java.util.Collection;
+
+import javax.annotation.Nonnull;
+
+/**
+ * Provides access to {@link URLClassLoader}#addURL.
+ */
+public abstract class URLClassLoaderAccess {
+
+    /**
+     * Creates a {@link URLClassLoaderAccess} for the given class loader.
+     *
+     * @param classLoader the class loader
+     * @return the access object
+     */
+    static URLClassLoaderAccess create(URLClassLoader classLoader) {
+        if (Unsafe.isSupported()) {
+            return new Unsafe(classLoader);
+        } else {
+            return Noop.INSTANCE;
+        }
+    }
+
+    private final URLClassLoader classLoader;
+
+    protected URLClassLoaderAccess(URLClassLoader classLoader) {
+        this.classLoader = classLoader;
+    }
+
+
+    /**
+     * Adds the given URL to the class loader.
+     *
+     * @param url the URL to add
+     */
+    public abstract void addURL(@Nonnull URL url);
+
+    /**
+     * Accesses using sun.misc.Unsafe, supported on Java 9+.
+     *
+     * @author Vaishnav Anil (https://github.com/slimjar/slimjar)
+     */
+    private static class Unsafe extends URLClassLoaderAccess {
+        private static final sun.misc.Unsafe UNSAFE;
+
+        static {
+            sun.misc.Unsafe unsafe;
+            try {
+                Field unsafeField = sun.misc.Unsafe.class.getDeclaredField("theUnsafe");
+                unsafeField.setAccessible(true);
+                unsafe = (sun.misc.Unsafe) unsafeField.get(null);
+            } catch (Throwable t) {
+                unsafe = null;
+            }
+            UNSAFE = unsafe;
+        }
+
+        private static boolean isSupported() {
+            return UNSAFE != null;
+        }
+
+        private final Collection<URL> unopenedURLs;
+        private final Collection<URL> pathURLs;
+
+        @SuppressWarnings("unchecked")
+        Unsafe(URLClassLoader classLoader) {
+            super(classLoader);
+
+            Collection<URL> unopenedURLs;
+            Collection<URL> pathURLs;
+            try {
+                Object ucp = fetchField(URLClassLoader.class, classLoader, "ucp");
+                unopenedURLs = (Collection<URL>) fetchField(ucp.getClass(), ucp, "unopenedUrls");
+                pathURLs = (Collection<URL>) fetchField(ucp.getClass(), ucp, "path");
+            } catch (Throwable e) {
+                unopenedURLs = null;
+                pathURLs = null;
+            }
+            this.unopenedURLs = unopenedURLs;
+            this.pathURLs = pathURLs;
+        }
+
+        private static Object fetchField(final Class<?> clazz, final Object object, final String name) throws NoSuchFieldException {
+            Field field = clazz.getDeclaredField(name);
+            long offset = UNSAFE.objectFieldOffset(field);
+            return UNSAFE.getObject(object, offset);
+        }
+
+        @Override
+        public void addURL(@Nonnull URL url) {
+            this.unopenedURLs.add(url);
+            this.pathURLs.add(url);
+        }
+    }
+
+    private static class Noop extends URLClassLoaderAccess {
+        private static final Noop INSTANCE = new Noop();
+
+        private Noop() {
+            super(null);
+        }
+
+        @Override
+        public void addURL(@Nonnull URL url) {
+            throw new UnsupportedOperationException();
+        }
+    }
+
+}