refactor: Move Unsafe to reflection class

worldedit-bukkit/adapters/adapter-1_17_1/src/main/java/com/sk89q/worldedit/bukkit/adapter/impl/fawe/v1_17_R1_2/PaperweightPlatformAdapter.java

@@ -8,8 +8,8 @@ import com.fastasyncworldedit.core.FaweCache;
 import com.fastasyncworldedit.core.configuration.Settings;
 import com.fastasyncworldedit.core.math.BitArrayUnstretched;
 import com.fastasyncworldedit.core.util.MathMan;
+import com.fastasyncworldedit.core.util.ReflectionUtils;
 import com.fastasyncworldedit.core.util.TaskManager;
-import com.fastasyncworldedit.core.util.UnsafeUtility;
 import com.mojang.datafixers.util.Either;
 import com.sk89q.worldedit.bukkit.adapter.Refraction;
 import com.sk89q.worldedit.math.BlockVector3;
@@ -119,7 +119,7 @@ public final class PaperweightPlatformAdapter extends NMSAdapter {
             getVisibleChunkIfPresent.setAccessible(true);
             methodGetVisibleChunk = MethodHandles.lookup().unreflect(getVisibleChunkIfPresent);
 
-            Unsafe unsafe = UnsafeUtility.getUNSAFE();
+            Unsafe unsafe = ReflectionUtils.getUnsafe();
             fieldLock = PalettedContainer.class.getDeclaredField(Refraction.pickName("lock", "m"));
             fieldLockOffset = unsafe.objectFieldOffset(fieldLock);
 
@@ -160,7 +160,7 @@ public final class PaperweightPlatformAdapter extends NMSAdapter {
     ) {
         long offset = ((long) layer << CHUNKSECTION_SHIFT) + CHUNKSECTION_BASE;
         if (layer >= 0 && layer < sections.length) {
-            return UnsafeUtility.getUNSAFE().compareAndSwapObject(sections, offset, expected, value);
+            return ReflectionUtils.getUnsafe().compareAndSwapObject(sections, offset, expected, value);
         }
         return false;
     }
@@ -169,7 +169,7 @@ public final class PaperweightPlatformAdapter extends NMSAdapter {
         //todo there has to be a better way to do this. Maybe using a() in DataPaletteBlock which acquires the lock in NMS?
         try {
             synchronized (section) {
-                Unsafe unsafe = UnsafeUtility.getUNSAFE();
+                Unsafe unsafe = ReflectionUtils.getUnsafe();
                 PalettedContainer<net.minecraft.world.level.block.state.BlockState> blocks = section.getStates();
                 Semaphore currentLock = (Semaphore) unsafe.getObject(blocks, fieldLockOffset);
                 if (currentLock instanceof DelegateSemaphore) {

worldedit-core/src/main/java/com/fastasyncworldedit/core/extent/clipboard/DiskOptimizedClipboard.java

@@ -6,7 +6,7 @@ import com.fastasyncworldedit.core.internal.exception.FaweClipboardVersionMismat
 import com.fastasyncworldedit.core.jnbt.streamer.IntValueReader;
 import com.fastasyncworldedit.core.math.IntTriple;
 import com.fastasyncworldedit.core.util.MainUtil;
-import com.fastasyncworldedit.core.util.UnsafeUtility;
+import com.fastasyncworldedit.core.util.ReflectionUtils;
 import com.sk89q.jnbt.CompoundTag;
 import com.sk89q.jnbt.IntTag;
 import com.sk89q.jnbt.Tag;
@@ -332,7 +332,7 @@ public class DiskOptimizedClipboard extends LinearClipboard implements Closeable
         if (cb == null || !cb.isDirect()) {
             return;
         }
-        UnsafeUtility.getUNSAFE().invokeCleaner(cb);
+        ReflectionUtils.getUnsafe().invokeCleaner(cb);
     }
 
     @Override

worldedit-core/src/main/java/com/fastasyncworldedit/core/util/ReflectionUtils.java

@@ -12,6 +12,9 @@ import java.lang.reflect.Modifier;
 import java.util.Arrays;
 import java.util.Comparator;
 
+/**
+ * This is an internal class not meant to be used outside the FAWE internals.
+ */
 public class ReflectionUtils {
 
     private static Unsafe UNSAFE;
@@ -134,5 +137,11 @@ public class ReflectionUtils {
         UNSAFE.putObject(base, UNSAFE.objectFieldOffset(field), value);
     }
 
+    /**
+     * @return an instance of {@link Unsafe}
+     */
+    public static Unsafe getUnsafe() {
+        return UNSAFE;
+    }
 
 }

worldedit-core/src/main/java/com/fastasyncworldedit/core/util/UnsafeUtility.java

@@ -1,29 +0,0 @@
-package com.fastasyncworldedit.core.util;
-
-import sun.misc.Unsafe;
-
-import java.lang.reflect.Field;
-
-/**
- * This is an internal class not meant to be used outside the FAWE internals.
- * @hidden
- */
-public class UnsafeUtility {
-
-    private static final Unsafe UNSAFE;
-
-    static {
-        try {
-            Field theUnsafe = Unsafe.class.getDeclaredField("theUnsafe");
-            theUnsafe.setAccessible(true);
-            UNSAFE = (Unsafe) theUnsafe.get(null);
-        } catch (NoSuchFieldException | IllegalAccessException e) {
-            throw new ExceptionInInitializerError("Cannot access Unsafe");
-        }
-    }
-
-    public static Unsafe getUNSAFE() {
-        return UNSAFE;
-    }
-
-}