--- ../src-base/minecraft/net/minecraftforge/common/chunkio/ChunkIOProvider.java
+++ ../src-work/minecraft/net/minecraftforge/common/chunkio/ChunkIOProvider.java
@@ -9,6 +9,9 @@
 import java.io.IOException;
 import java.util.concurrent.atomic.AtomicInteger;
 
+import org.bukkit.Server;
+import org.bukkit.craftbukkit.util.LongHash;
+
 class ChunkIOProvider implements AsynchronousExecutor.CallBackProvider<QueuedChunk, net.minecraft.world.chunk.Chunk, Runnable, RuntimeException> {
     private final AtomicInteger threadNumber = new AtomicInteger(1);
 
@@ -41,13 +44,21 @@
         queuedChunk.loader.loadEntities(queuedChunk.world, queuedChunk.compound.getCompoundTag("Level"), chunk);
         MinecraftForge.EVENT_BUS.post(new ChunkDataEvent.Load(chunk, queuedChunk.compound)); // Don't call ChunkDataEvent.Load async
         chunk.lastSaveTime = queuedChunk.provider.worldObj.getTotalWorldTime();
-        queuedChunk.provider.loadedChunkHashMap.add(ChunkCoordIntPair.chunkXZ2Int(queuedChunk.x, queuedChunk.z), chunk);
+        queuedChunk.provider.loadedChunkHashMap.put(LongHash.toLong(queuedChunk.x, queuedChunk.z), chunk);
         queuedChunk.provider.loadedChunks.add(chunk);
+        queuedChunk.provider.field_73244_f.add(ChunkCoordIntPair.chunkXZ2Int(queuedChunk.x, queuedChunk.z), chunk); // Cauldron - vanilla/mystcraft compatibility
         chunk.onChunkLoad();
 
         if (queuedChunk.provider.currentChunkProvider != null) {
+            queuedChunk.provider.worldObj.timings.syncChunkLoadStructuresTimer.startTiming(); // Spigot
             queuedChunk.provider.currentChunkProvider.recreateStructures(queuedChunk.x, queuedChunk.z);
+            queuedChunk.provider.worldObj.timings.syncChunkLoadStructuresTimer.stopTiming(); // Spigot
         }
+        
+        Server server = queuedChunk.provider.worldObj.getServer();
+        if (server != null) {
+            server.getPluginManager().callEvent(new org.bukkit.event.world.ChunkLoadEvent(chunk.bukkitChunk, false));
+        }
 
         chunk.populateChunk(queuedChunk.provider, queuedChunk.provider, queuedChunk.x, queuedChunk.z);
     }