---- Minecraft Crash Report ----
// Surprise! Haha. Well, this is awkward.

Time: 22/04/16 19:05
Description: Exception in server tick loop

java.lang.ClassCastException: ax cannot be cast to aw
	at an.d(SourceFile:106)
	at ri.c(SourceFile:114)
	at ri.a(SourceFile:65)
	at oe.b(SourceFile:311)
	at of.a(SourceFile:528)
	at gt.a(SourceFile:74)
	at jm.e(SourceFile:945)
	at et.a(SourceFile:116)
	at et.a(SourceFile:53)
	at axx.b(SourceFile:72)
	at net.minecraft.server.MinecraftServer.q(SourceFile:452)
	at net.minecraft.server.MinecraftServer.p(SourceFile:383)
	at axu.p(SourceFile:111)
	at net.minecraft.server.MinecraftServer.run(SourceFile:316)
	at ep.run(SourceFile:539)

Relevant Details:
- Minecraft Version: 1.3.1
- Operating System: Windows 10 (amd64) version 10.0
- Java Version: 1.8.0_25, Oracle Corporation
- Java VM Version: Java HotSpot(TM) 64-Bit Server VM (mixed mode), Oracle Corporation
- Memory: 91347112 bytes (87 MB) / 173768704 bytes (165 MB) up to 1060372480 bytes (1011 MB)
- JVM Flags: 6 total; -XX:HeapDumpPath=MojangTricksIntelDriversForPerformance_javaw.exe_minecraft.exe.heapdump -Xmx1G -XX:+UseConcMarkSweepGC -XX:+CMSIncrementalMode -XX:-UseAdaptiveSizePolicy -Xmn128M
- Type: Integrated Server
- Is Modded: Unknown (can't tell)
- Profiler Position: N/A (disabled)
- Player Count: 0 / 8; []
- World aston Entities: 0 total; []
- World aston Players: 0 total; []
- World aston Chunk Stats: ServerChunkCache: 0 Drop: 0