Fixes

src/main/java/com/volmit/iris/engine/IrisComplex.java

@@ -47,6 +47,7 @@ import org.bukkit.Material;
 import org.bukkit.block.Biome;
 import org.bukkit.block.data.BlockData;
 
+import java.lang.reflect.Field;
 import java.util.List;
 import java.util.UUID;
 
@@ -502,4 +503,20 @@ public class IrisComplex implements DataProvider {
         biome.setInferredType(b.getInferredType());
         return implode(biome, x, z, max - 1);
     }
+
+    public void close() {
+        // I know this looks awful, but it helps gc not deal with the spaghetti reference soup going on here
+        for (Field i : getClass().getDeclaredFields())
+        {
+            if(i.getType().equals(ProceduralStream.class))
+            {
+                i.setAccessible(true);
+                try {
+                    i.set(this, null);
+                } catch (IllegalAccessException e) {
+                    e.printStackTrace();
+                }
+            }
+        }
+    }
 }

src/main/java/com/volmit/iris/engine/IrisEngine.java

@@ -303,6 +303,7 @@ public class IrisEngine extends BlockPopulator implements Engine {
         getCaveModifier().close();
         getPostModifier().close();
         getMantle().close();
+        getComplex().close();
         Iris.debug("Engine Fully Shutdown!");
     }