---- Minecraft Crash Report ----
// Don't be sad. I'll do better next time, I promise!

Time: 2014/2/15 ¤U¤È 12:48
Description: Exception in server tick loop

java.lang.NullPointerException: Exception in server tick loop
	at com.mojang.authlib.GameProfile.hashCode(GameProfile.java:90)
	at java.util.WeakHashMap.hash(Unknown Source)
	at java.util.WeakHashMap.put(Unknown Source)
	at org.apache.commons.lang3.builder.ToStringStyle.register(ToStringStyle.java:191)
	at org.apache.commons.lang3.builder.ToStringStyle.appendClassName(ToStringStyle.java:1453)
	at org.apache.commons.lang3.builder.ToStringStyle.appendStart(ToStringStyle.java:378)
	at org.apache.commons.lang3.builder.ToStringBuilder.<init>(ToStringBuilder.java:263)
	at org.apache.commons.lang3.builder.ToStringBuilder.<init>(ToStringBuilder.java:226)
	at com.mojang.authlib.GameProfile.toString(GameProfile.java:97)
	at ov.d(SourceFile:102)
	at ov.a(SourceFile:93)
	at ok.c(SourceFile:130)
	at net.minecraft.server.MinecraftServer.v(SourceFile:555)
	at nb.v(SourceFile:264)
	at net.minecraft.server.MinecraftServer.u(SourceFile:471)
	at net.minecraft.server.MinecraftServer.run(SourceFile:387)
	at mr.run(SourceFile:657)


A detailed walkthrough of the error, its code path and all known details is as follows:
---------------------------------------------------------------------------------------

-- System Details --
Details:
	Minecraft Version: 14w07a
	Operating System: Windows 8 (amd64) version 6.2
	Java Version: 1.7.0_45, Oracle Corporation
	Java VM Version: Java HotSpot(TM) 64-Bit Server VM (mixed mode), Oracle Corporation
	Memory: 883730624 bytes (842 MB) / 1029701632 bytes (982 MB) up to 1029701632 bytes (982 MB)
	JVM Flags: 2 total; -Xms1024m -Xmx1024m
	IntCache: cache: 15, tcache: 0, allocated: 13, tallocated: 95
	Profiler Position: N/A (disabled)
	Player Count: 0 / 100; []
	Is Modded: Unknown (can't tell)
	Type: Dedicated Server (map_server.txt)