Don't use relighter for non nms placer

bukkit/src/main/java/com/boydti/fawe/bukkit/v0/BukkitQueue_All.java

@@ -2,6 +2,8 @@ package com.boydti.fawe.bukkit.v0;
 
 import com.boydti.fawe.FaweCache;
 import com.boydti.fawe.config.Settings;
+import com.boydti.fawe.example.NullRelighter;
+import com.boydti.fawe.example.Relighter;
 import com.boydti.fawe.object.FaweChunk;
 import com.boydti.fawe.object.RegionWrapper;
 import com.boydti.fawe.object.RunnableVal;
@@ -9,6 +11,7 @@ import com.boydti.fawe.util.MathMan;
 import com.boydti.fawe.util.ReflectionUtils;
 import com.boydti.fawe.util.SetQueue;
 import com.boydti.fawe.util.TaskManager;
+import com.google.common.collect.MapMaker;
 import com.sk89q.jnbt.CompoundTag;
 import com.sk89q.worldedit.blocks.BaseBlock;
 import java.io.File;
@@ -17,6 +20,7 @@ import java.lang.reflect.Field;
 import java.lang.reflect.Method;
 import java.util.ArrayDeque;
 import java.util.Map;
+import java.util.concurrent.ConcurrentMap;
 import org.bukkit.Chunk;
 import org.bukkit.ChunkSnapshot;
 import org.bukkit.Location;
@@ -27,6 +31,9 @@ public class BukkitQueue_All extends BukkitQueue_0<ChunkSnapshot, ChunkSnapshot,
 
     public static int ALLOCATE;
     private static int LIGHT_MASK = 0x739C0;
+    private ConcurrentMap<Long, ChunkSnapshot> chunkCache = new MapMaker()
+            .weakValues()
+            .makeMap();
 
     public BukkitQueue_All(com.sk89q.worldedit.world.World world) {
         super(world);
@@ -46,6 +53,11 @@ public class BukkitQueue_All extends BukkitQueue_0<ChunkSnapshot, ChunkSnapshot,
         }
     }
 
+    @Override
+    public Relighter getRelighter() {
+        return NullRelighter.INSTANCE;
+    }
+
     private static Class<?> classRegionFileCache;
     private static Class<?> classRegionFile;
     private static Class<?> classCraftChunk;
@@ -220,13 +232,15 @@ public class BukkitQueue_All extends BukkitQueue_0<ChunkSnapshot, ChunkSnapshot,
 
     @Override
     public ChunkSnapshot getCachedChunk(World world, int cx, int cz) {
+        long pair = MathMan.pairInt(cx, cz);
+        ChunkSnapshot cached = chunkCache.get(pair);
+        if (cached != null) return cached;
         if (world.isChunkLoaded(cx, cz)) {
-            long pair = MathMan.pairInt(cx, cz);
             Long originalKeep = keepLoaded.get(pair);
             keepLoaded.put(pair, Long.MAX_VALUE);
             if (world.isChunkLoaded(cx, cz)) {
                 Chunk chunk = world.getChunkAt(cx, cz);
-                ChunkSnapshot snapshot = chunk.getChunkSnapshot(false, true, false);
+                ChunkSnapshot snapshot = getAndCacheChunk(chunk);
                 if (originalKeep != null) {
                     keepLoaded.put(pair, originalKeep);
                 } else {
@@ -263,7 +277,13 @@ public class BukkitQueue_All extends BukkitQueue_0<ChunkSnapshot, ChunkSnapshot,
     public ChunkSnapshot loadChunk(World world, int x, int z, boolean generate) {
         Chunk chunk = world.getChunkAt(x, z);
         chunk.load(generate);
-        return chunk.isLoaded() ? chunk.getChunkSnapshot(false, true, false) : null;
+        return chunk.isLoaded() ? getAndCacheChunk(chunk) : null;
+    }
+
+    private ChunkSnapshot getAndCacheChunk(Chunk chunk) {
+        ChunkSnapshot snapshot = chunk.getChunkSnapshot(false, true, false);
+        chunkCache.put(MathMan.pairInt(chunk.getX(), chunk.getZ()), snapshot);
+        return snapshot;
     }
 
     @Override

core/src/main/java/com/boydti/fawe/example/NMSMappedFaweQueue.java

@@ -38,11 +38,11 @@ public abstract class NMSMappedFaweQueue<WORLD, CHUNK, CHUNKSECTION, SECTION> ex
     @Override
     public void runTasks() {
         super.runTasks();
-        if (!relighter.isEmpty()) {
+        if (!getRelighter().isEmpty()) {
             TaskManager.IMP.taskNowAsync(new Runnable() {
                 @Override
                 public void run() {
-                    relighter.fixLightingSafe(hasSky());
+                    getRelighter().fixLightingSafe(hasSky());
                 }
             });
         }
@@ -66,7 +66,7 @@ public abstract class NMSMappedFaweQueue<WORLD, CHUNK, CHUNKSECTION, SECTION> ex
             sendChunk(chunk);
         }
         if (Settings.IMP.LIGHTING.MODE == 2) {
-            relighter.addChunk(chunk.getX(), chunk.getZ(), null, chunk.getBitMask());
+            getRelighter().addChunk(chunk.getX(), chunk.getZ(), null, chunk.getBitMask());
             return;
         }
         CharFaweChunk cfc = (CharFaweChunk) chunk;
@@ -90,7 +90,7 @@ public abstract class NMSMappedFaweQueue<WORLD, CHUNK, CHUNKSECTION, SECTION> ex
             }
         }
         if (relight) {
-            relighter.addChunk(chunk.getX(), chunk.getZ(), fix, chunk.getBitMask());
+            getRelighter().addChunk(chunk.getX(), chunk.getZ(), fix, chunk.getBitMask());
         } else if (Settings.IMP.LIGHTING.DELAY_PACKET_SENDING) {
             sendChunk(chunk);
         }