---- Minecraft Crash Report ----
// Shall we play a game?

Time: 5/15/13 6:44 PM
Description: Sending packet

java.lang.NullPointerException
	at cj.b(SourceFile:116)
	at cj.a(SourceFile:41)
	at jj.b(SourceFile:426)
	at gw.b(SourceFile:668)
	at gw.a(SourceFile:78)
	at bhf.b(SourceFile:73)
	at net.minecraft.server.MinecraftServer.s(SourceFile:490)
	at net.minecraft.server.MinecraftServer.r(SourceFile:407)
	at bhc.r(SourceFile:125)
	at net.minecraft.server.MinecraftServer.run(SourceFile:341)
	at gr.run(SourceFile:584)


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

-- Head --
Stacktrace:
	at cj.b(SourceFile:116)
	at cj.a(SourceFile:41)

-- Packet being sent --
Details:
	Packet ID: 4
	Packet class: fj
Stacktrace:
	at jj.b(SourceFile:426)
	at gw.b(SourceFile:668)
	at gw.a(SourceFile:78)
	at bhf.b(SourceFile:73)
	at net.minecraft.server.MinecraftServer.s(SourceFile:490)
	at net.minecraft.server.MinecraftServer.r(SourceFile:407)
	at bhc.r(SourceFile:125)
	at net.minecraft.server.MinecraftServer.run(SourceFile:341)
	at gr.run(SourceFile:584)

-- System Details --
Details:
	Minecraft Version: 13w19a
	Operating System: Windows 7 (amd64) version 6.1
	Java Version: 1.7.0_13, Oracle Corporation
	Java VM Version: Java HotSpot(TM) 64-Bit Server VM (mixed mode), Oracle Corporation
	Memory: 131793840 bytes (125 MB) / 455737344 bytes (434 MB) up to 954466304 bytes (910 MB)
	JVM Flags: 1 total; -Xmx1G
	AABB Pool Size: 54231 (3036936 bytes; 2 MB) allocated, 54231 (3036936 bytes; 2 MB) used
	Suspicious classes: No suspicious classes found.
	IntCache: cache: 9, tcache: 0, allocated: 1, tallocated: 63
	Profiler Position: N/A (disabled)
	Vec3 Pool Size: 6037 (338072 bytes; 0 MB) allocated, 6037 (338072 bytes; 0 MB) used
	Player Count: 0 / 8; []
	Type: Integrated Server (map_client.txt)
	Is Modded: Probably not. Jar signature remains and both client + server brands are untouched.