Hopper: java.lang.OutOfMemoryError: GC overhead limit exceeded

This is an automatically generated report based from the following crash: http://hopper.minecraft.net/crashes/minecraft/MCX-145040/

Crash:

java.lang.OutOfMemoryError: GC overhead limit exceeded
java.lang.OutOfMemoryError: GC overhead limit exceeded

The following is the first clean report made public about this crash:

---- Minecraft Crash Report ----
// Quite honestly, I wouldn't worry myself about that.

Time: 13-09-13 15:26
Description: Exception generating new chunk

java.lang.OutOfMemoryError: GC overhead limit exceeded
	at amx.a(SourceFile:39)
	at ann.a(SourceFile:28)
	at aeg.a(SourceFile:79)
	at aee.<init>(SourceFile:26)
	at aed.a(SourceFile:52)
	at aed.d(SourceFile:87)
	at aeg.a(SourceFile:160)
	at aeg.b(SourceFile:150)
	at agm.d(SourceFile:190)
	at kl.c(SourceFile:72)
	at kl.d(SourceFile:104)
	at add.e(SourceFile:311)
	at add.a(SourceFile:232)
	at acy.a(SourceFile:67)
	at km.a(SourceFile:668)
	at vl.a(SourceFile:30)
	at vj.h(SourceFile:139)
	at add.a(SourceFile:1372)
	at km.a(SourceFile:479)
	at add.g(SourceFile:1350)
	at add.h(SourceFile:1257)
	at km.h(SourceFile:364)
	at net.minecraft.server.MinecraftServer.u(SourceFile:465)
	at net.minecraft.server.MinecraftServer.t(SourceFile:400)
	at bnz.t(SourceFile:124)
	at net.minecraft.server.MinecraftServer.run(SourceFile:334)
	at jb.run(SourceFile:577)


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

-- Head --
Stacktrace:
	at amx.a(SourceFile:39)
	at ann.a(SourceFile:28)
	at aeg.a(SourceFile:79)
	at aee.<init>(SourceFile:26)
	at aed.a(SourceFile:52)
	at aed.d(SourceFile:87)
	at aeg.a(SourceFile:160)
	at aeg.b(SourceFile:150)
	at agm.d(SourceFile:190)

-- Chunk to be generated --
Details:
	Location: -136,-84
	Position hash: -356482285704
	Generator: RandomLevelSource
Stacktrace:
	at kl.c(SourceFile:72)
	at kl.d(SourceFile:104)
	at add.e(SourceFile:311)

-- Requested block coordinates --
Details:
	Found chunk: true
	Location: World: (-2175,220,-1329), Chunk: (at 1,13,15 in -136,-84; contains blocks -2176,0,-1344 to -2161,255,-1329), Region: (-5,-3; contains chunks -160,-96 to -129,-65, blocks -2560,0,-1536 to -2049,255,-1025)
Stacktrace:
	at add.a(SourceFile:232)
	at acy.a(SourceFile:67)
	at km.a(SourceFile:668)
	at vl.a(SourceFile:30)
	at vj.h(SourceFile:139)
	at add.a(SourceFile:1372)
	at km.a(SourceFile:479)
	at add.g(SourceFile:1350)

-- Entity being ticked --
Details:
	Entity Type: Fireball (vl)
	Entity ID: 58230
	Entity Name: Fireball
	Entity's Exact location: -332,55, 79,24, 797,39
	Entity's Block location: World: (-333,79,797), Chunk: (at 3,4,13 in -21,49; contains blocks -336,0,784 to -321,255,799), Region: (-1,1; contains chunks -32,32 to -1,63, blocks -512,0,512 to -1,255,1023)
	Entity's Momentum: -0,29, -1,41, -1,07
Stacktrace:
	at add.h(SourceFile:1257)
	at km.h(SourceFile:364)

-- Affected level --
Details:
	Level name: New World
	All players: 1 total; [kp['ThaFreakyOne'/227, l='New World', x=-321,67, y=129,25, z=837,14]]
	Chunk stats: ServerChunkCache: 10161 Drop: 0
	Level seed: 6348262688477651849
	Level generator: ID 00 - default, ver 1. Features enabled: true
	Level generator options: 
	Level spawn location: World: (-144,64,256), Chunk: (at 0,4,0 in -9,16; contains blocks -144,0,256 to -129,255,271), Region: (-1,0; contains chunks -32,0 to -1,31, blocks -512,0,0 to -1,255,511)
	Level time: 3975 game time, 3975 day time
	Level dimension: 0
	Level storage version: 0x04ABD - Anvil
	Level weather: Rain time: 113248 (now: false), thunder time: 57992 (now: false)
	Level game mode: Game mode: creative (ID 1). Hardcore: false. Cheats: true
Stacktrace:
	at net.minecraft.server.MinecraftServer.u(SourceFile:465)
	at net.minecraft.server.MinecraftServer.t(SourceFile:400)
	at bnz.t(SourceFile:124)
	at net.minecraft.server.MinecraftServer.run(SourceFile:334)
	at jb.run(SourceFile:577)

-- System Details --
Details:
	Minecraft Version: 13w37b
	Operating System: Windows 7 (amd64) version 6.1
	Java Version: 1.7.0_17, Oracle Corporation
	Java VM Version: Java HotSpot(TM) 64-Bit Server VM (mixed mode), Oracle Corporation
	Memory: 119603448 bytes (114 MB) / 954466304 bytes (910 MB) up to 954466304 bytes (910 MB)
	JVM Flags: 2 total; -XX:HeapDumpPath=MojangTricksIntelDriversForPerformance_javaw.exe_minecraft.exe.heapdump -Xmx1G
	AABB Pool Size: 20507 (1148392 bytes; 1 MB) allocated, 15863 (888328 bytes; 0 MB) used
	IntCache: cache: 0, tcache: 0, allocated: 12, tallocated: 94
	Profiler Position: N/A (disabled)
	Vec3 Pool Size: 622336 (34850816 bytes; 33 MB) allocated, 8087 (452872 bytes; 0 MB) used
	Player Count: 1 / 8; [kp['ThaFreakyOne'/227, l='New World', x=-321,67, y=129,25, z=837,14]]
	Type: Integrated Server (map_client.txt)
	Is Modded: Probably not. Jar signature remains and both client + server brands are untouched.

You can see this full report at http://hopper.minecraft.net/crashes/minecraft/MCX-145040/10436550/