The Nether Always Crashes Minecraft

Generated 1/20/13 1:52 PM

-- Head --
Stacktrace:
	at dr.a(SourceFile:185)
	at dt.<init>(SourceFile:39)
	at iq.j_(SourceFile:161)
	at yc.a(SourceFile:1319)
	at in.a(SourceFile:450)
	at yc.g(SourceFile:1297)

-- Entity being ticked --
Details:
	Entity Type: null (iq)
	Entity ID: 162
	Name: Player
	Exact location: -44.00, 57.00, 34.00
	Block location: World: (-44,57,34), Chunk: (at 4,3,2 in -3,2; contains blocks -48,0,32 to -33,255,47), Region: (-1,0; contains chunks -32,0 to -1,31, blocks -512,0,0 to -1,255,511)
	Momentum: 0.00, -0.08, 0.00
Stacktrace:
	at yc.h(SourceFile:1196)
	at in.h(SourceFile:362)

-- Affected level --
Details:
	Level name: New World
	All players: 1 total; [iq['Player'/162, l='New World', x=-44.00, y=57.00, z=34.00]]
	Chunk stats: ServerChunkCache: 441 Drop: 0
	Level seed: 2124361799015447902
	Level generator: ID 00 - default, ver 1. Features enabled: false
	Level generator options: 
	Level spawn location: World: (0,0,0), Chunk: (at 0,0,0 in 0,0; contains blocks 0,0,0 to 15,255,15), Region: (0,0; contains chunks 0,0 to 31,31, blocks 0,0,0 to 511,255,511)
	Level time: 0 game time, 0 day time
	Level dimension: 0
	Level storage version: 0x00000 - Unknown?
	Level weather: Rain time: 0 (now: false), thunder time: 0 (now: false)
	Level game mode: ~~ERROR~~ NullPointerException: null
Stacktrace:
	at net.minecraft.server.MinecraftServer.r(SourceFile:744)
	at net.minecraft.server.MinecraftServer.q(SourceFile:679)
	at bdz.q(SourceFile:117)
	at net.minecraft.server.MinecraftServer.run(SourceFile:613)
	at fy.run(SourceFile:849)

-- System Details --
Details:
	Minecraft Version: 1.4.7
	Operating System: Mac OS X (x86_64) version 10.6.8
	Java Version: 1.6.0_35, Apple Inc.
	Java VM Version: Java HotSpot(TM) 64-Bit Server VM (mixed mode), Apple Inc.
	Memory: 28104 bytes (0 MB) / 129957888 bytes (123 MB) up to 129957888 bytes (123 MB)
	JVM Flags: 0 total; 
	AABB Pool Size: 2031 (113736 bytes; 0 MB) allocated, 1902 (106512 bytes; 0 MB) used
	Suspicious classes: No suspicious classes found.
	IntCache: cache: 7, tcache: 0, allocated: 3, tallocated: 63
	Profiler Position: N/A (disabled)
	Vec3 Pool Size: 630 (35280 bytes; 0 MB) allocated, 535 (29960 bytes; 0 MB) used
	Player Count: 1 / 8; [iq['Player'/162, l='New World', x=-44.00, y=57.00, z=34.00]]
	Type: Integrated Server (map_client.txt)
	Is Modded: Probably not. Jar signature remains and both client + server brands are untouched.

java.lang.OutOfMemoryError: Java heap space
	at dr.a(SourceFile:185)
	at dt.<init>(SourceFile:39)
	at iq.j_(SourceFile:161)
	at yc.a(SourceFile:1319)
	at in.a(SourceFile:450)
	at yc.g(SourceFile:1297)
	at yc.h(SourceFile:1196)
	at in.h(SourceFile:362)
	at net.minecraft.server.MinecraftServer.r(SourceFile:744)
	at net.minecraft.server.MinecraftServer.q(SourceFile:679)
	at bdz.q(SourceFile:117)
	at net.minecraft.server.MinecraftServer.run(SourceFile:613)
	at fy.run(SourceFile:849)
--- END ERROR REPORT c3df0375 ----------