---- Minecraft Crash Report ----
// Hey, that tickles! Hehehe!

Time: 9/28/12 4:09 PM
Description: Exception in server tick loop

java.lang.RuntimeException: Already decorating!!
	at wr.a(SourceFile:21)
	at wn.a(SourceFile:217)
	at wz.a(SourceFile:48)
	at yq.a(SourceFile:460)
	at gx.a(SourceFile:152)
	at xo.a(SourceFile:659)
	at gx.c(SourceFile:90)
	at gx.d(SourceFile:100)
	at vs.e(SourceFile:258)
	at vs.b(SourceFile:210)
	at vs.a(SourceFile:199)
	at vs.a(SourceFile:2503)
	at vs.a(SourceFile:1749)
	at vs.a(SourceFile:1851)
	at vs.a(SourceFile:1905)
	at vs.b(SourceFile:1765)
	at xo.g(SourceFile:234)
	at xo.a(SourceFile:336)
	at vs.a(SourceFile:278)
	at vs.c(SourceFile:267)
	at zb.a(SourceFile:32)
	at zl.a(SourceFile:149)
	at zl.a(SourceFile:64)
	at wr.a(SourceFile:96)
	at wr.a(SourceFile:27)
	at wn.a(SourceFile:217)
	at wz.a(SourceFile:48)
	at yq.a(SourceFile:460)
	at gx.a(SourceFile:152)
	at xo.a(SourceFile:659)
	at gx.c(SourceFile:90)
	at net.minecraft.server.MinecraftServer.e(SourceFile:227)
	at baj.a(SourceFile:83)
	at baj.c(SourceFile:99)
	at net.minecraft.server.MinecraftServer.run(SourceFile:311)
	at et.run(SourceFile:562)

Relevant Details:
- Minecraft Version: 12w39b
- Operating System: Mac OS X (i386) version 10.8.2
- Java Version: 1.6.0_35, Apple Inc.
- Java VM Version: Java HotSpot(TM) Client VM (mixed mode), Apple Inc.
- Memory: 1062974552 bytes (1013 MB) / 1117388800 bytes (1065 MB) up to 2140798976 bytes (2041 MB)
- JVM Flags: 3 total; -Xbootclasspath/a:/System/Library/PrivateFrameworks/JavaApplicationLauncher.framework/Resources/LauncherSupport.jar -Xms1024M -Xmx2048M
- Is Modded: Probably not
- Profiler Position: N/A (disabled)
- Player Count: 0 / 8; []
- World TestWorldGen Entities: 0 total; []
- World TestWorldGen Players: 0 total; []
- World TestWorldGen Chunk Stats: ServerChunkCache: 0 Drop: 0
- Type: Integrated Server