---- Minecraft Crash Report ----
// I blame Dinnerbone.

Time: 10/23/13 6:43 PM
Description: Exception in server tick loop

java.lang.NullPointerException: Exception in server tick loop
	at axb.f(SourceFile:202)
	at lc.m(SourceFile:690)
	at net.minecraft.server.MinecraftServer.a(SourceFile:908)
	at bsi.a(SourceFile:186)
	at pu.b(SourceFile:92)
	at net.minecraft.server.MinecraftServer.t(SourceFile:474)
	at bsi.t(SourceFile:117)
	at net.minecraft.server.MinecraftServer.run(SourceFile:358)
	at kx.run(SourceFile:617)


A detailed walkthrough of the error, its code path and all known details is as follows:
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-- System Details --
Details:
	Minecraft Version: 1.7.1
	Operating System: Windows 8 (x86) version 6.2
	Java Version: 1.7.0_45, Oracle Corporation
	Java VM Version: Java HotSpot(TM) Client VM (mixed mode, sharing), Oracle Corporation
	Memory: 54197664 bytes (51 MB) / 445837312 bytes (425 MB) up to 518979584 bytes (494 MB)
	JVM Flags: 2 total; -XX:HeapDumpPath=MojangTricksIntelDriversForPerformance_javaw.exe_minecraft.exe.heapdump -Xmx512M
	AABB Pool Size: 3461 (193816 bytes; 0 MB) allocated, 2621 (146776 bytes; 0 MB) used
	IntCache: cache: 0, tcache: 0, allocated: 13, tallocated: 95
	Profiler Position: N/A (disabled)
	Vec3 Pool Size: 996 (55776 bytes; 0 MB) allocated, 585 (32760 bytes; 0 MB) used
	Player Count: 1 / 8; [ml['Randylynn'/33, l='1.7.1', x=973.72, y=75.00, z=391.12]]
	Type: Integrated Server (map_client.txt)
	Is Modded: Probably not. Jar signature remains and both client + server brands are untouched.