Hopper: java.lang.OutOfMemoryError: Java heap space

This is an automatically generated report based from the following crash: http://hopper.minecraft.net/crashes/minecraft/MCX-144898/

Crash:

java.lang.OutOfMemoryError: Java heap space
java.lang.OutOfMemoryError: Java heap space

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

---- Minecraft Crash Report ----
// Don't be sad. I'll do better next time, I promise!

Time: 13.09.13 14:10
Description: Registering texture

java.lang.OutOfMemoryError: Java heap space
	at blm.a(SourceFile:167)
	at bll.b(SourceFile:71)
	at bll.a(SourceFile:54)
	at bln.a(SourceFile:69)
	at bln.a(SourceFile:58)
	at bln.a(SourceFile:49)
	at awo.Q(SourceFile:389)
	at awo.e(SourceFile:626)
	at net.minecraft.client.main.Main.main(SourceFile:103)


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

-- Head --
Stacktrace:
	at blm.a(SourceFile:167)
	at bll.b(SourceFile:71)
	at bll.a(SourceFile:54)

-- Resource location being registered --
Details:
	Resource location: minecraft:textures/atlas/blocks.png
	Texture object class: bll
Stacktrace:
	at bln.a(SourceFile:69)
	at bln.a(SourceFile:58)
	at bln.a(SourceFile:49)
	at awo.Q(SourceFile:389)

-- Initialization --
Details:
Stacktrace:
	at awo.e(SourceFile:626)
	at net.minecraft.client.main.Main.main(SourceFile:103)

-- System Details --
Details:
	Minecraft Version: 13w37b
	Operating System: Windows 7 (x86) version 6.1
	Java Version: 1.7.0_09, Oracle Corporation
	Java VM Version: Java HotSpot(TM) Client VM (mixed mode, sharing), Oracle Corporation
	Memory: 18723328 bytes (17 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: 0 (0 bytes; 0 MB) allocated, 0 (0 bytes; 0 MB) used
	IntCache: cache: 0, tcache: 0, allocated: 0, tallocated: 0
	Launched Version: 13w37b
	LWJGL: 2.9.0
	OpenGL: AMD Radeon HD 6370M        GL version 4.0.9901 Compatibility Profile Context, ATI Technologies Inc.
	Is Modded: Probably not. Jar signature remains and client brand is untouched.
	Type: Client (map_client.txt)
	Resource Packs: [Sphax PureBDcraft 512x MC16 (1).zip]
	Current Language: English (UK)
	Profiler Position: N/A (disabled)
	Vec3 Pool Size: ~~ERROR~~ NullPointerException: null

You can see this full report at http://hopper.minecraft.net/crashes/minecraft/MCX-144898/10420445/