---- Minecraft Crash Report ---- // Surprise! Haha. Well, this is awkward. Time: 08/09/13 17:02 Description: Sending packet java.lang.NullPointerException at cm.b(SourceFile:116) at cm.a(SourceFile:41) at jz.b(SourceFile:421) at hm.b(SourceFile:648) at hm.a(SourceFile:82) at bkz.b(SourceFile:73) at net.minecraft.server.MinecraftServer.t(SourceFile:488) at net.minecraft.server.MinecraftServer.s(SourceFile:405) at bkw.s(SourceFile:124) at net.minecraft.server.MinecraftServer.run(SourceFile:339) at hh.run(SourceFile:582) A detailed walkthrough of the error, its code path and all known details is as follows: --------------------------------------------------------------------------------------- -- Head -- Stacktrace: at cm.b(SourceFile:116) at cm.a(SourceFile:41) -- Packet being sent -- Details: Packet ID: 4 Packet class: fw Stacktrace: at jz.b(SourceFile:421) at hm.b(SourceFile:648) at hm.a(SourceFile:82) at bkz.b(SourceFile:73) at net.minecraft.server.MinecraftServer.t(SourceFile:488) at net.minecraft.server.MinecraftServer.s(SourceFile:405) at bkw.s(SourceFile:124) at net.minecraft.server.MinecraftServer.run(SourceFile:339) at hh.run(SourceFile:582) -- System Details -- Details: Minecraft Version: 1.6.2 Operating System: Windows XP (x86) version 5.1 Java Version: 1.7.0_11, Oracle Corporation Java VM Version: Java HotSpot(TM) Client VM (mixed mode, sharing), Oracle Corporation Memory: 256268880 bytes (244 MB) / 518979584 bytes (494 MB) up to 518979584 bytes (494 MB) JVM Flags: 2 total; -XX:HeapDumpPath=MojangTricksIntelDriversForPerformance_javaw.exe_minecraft.exe.heapdump -Xmx512M AABB Pool Size: 16568 (927808 bytes; 0 MB) allocated, 16568 (927808 bytes; 0 MB) used Suspicious classes: No suspicious classes found. IntCache: cache: 0, tcache: 0, allocated: 1, tallocated: 63 Profiler Position: N/A (disabled) Vec3 Pool Size: 1839 (102984 bytes; 0 MB) allocated, 1839 (102984 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.