2012-11-14 19:32:21 [WARNING] [ProtocolLib] Task #22 for ProtocolLib v1.6.0 generated an exception
java.lang.IllegalAccessError: tried to access field net.minecraft.server.Packet56MapChunkBulk.buildBuffer from class com.lishid.orebfuscator.obfuscation.Calculations
	at com.lishid.orebfuscator.obfuscation.Calculations.getInfo(Calculations.java:93)
	at com.lishid.orebfuscator.hook.ProtocolLibHook$ChunkCompressorStream.sendServerPacket(ProtocolLibHook.java:87)
	at com.comphenix.protocol.async.AsyncMarker.sendPacket(AsyncMarker.java:387)
	at com.comphenix.protocol.async.PacketSendingQueue.sendPacket(PacketSendingQueue.java:218)
	at com.comphenix.protocol.async.PacketSendingQueue.trySendPackets(PacketSendingQueue.java:160)
	at com.comphenix.protocol.async.AsyncFilterManager.sendProcessedPackets(AsyncFilterManager.java:406)
	at com.comphenix.protocol.ProtocolLibrary$2.run(ProtocolLibrary.java:225)
	at org.bukkit.craftbukkit.scheduler.CraftTask.run(CraftTask.java:53)
	at org.bukkit.craftbukkit.scheduler.CraftScheduler.mainThreadHeartbeat(CraftScheduler.java:345)
	at net.minecraft.server.MinecraftServer.r(MinecraftServer.java:529)
	at net.minecraft.server.DedicatedServer.r(DedicatedServer.java:222)
	at net.minecraft.server.MinecraftServer.q(MinecraftServer.java:493)
	at net.minecraft.server.MinecraftServer.run(MinecraftServer.java:426)
	at net.minecraft.server.ThreadServerApplication.run(SourceFile:856)