Hopper: java.lang.OutOfMemoryError: unable to create new native thread

This is an automatically generated report based from the following crash: http://hopper.minecraft.net/crashes/minecraft/MCX-191200/

Crash:

java.lang.OutOfMemoryError: unable to create new native thread
java.lang.OutOfMemoryError: unable to create new native thread

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

---- Minecraft Crash Report ----
// My bad.

Time: 19/09/13 20:52
Description: Updating screen events

java.lang.OutOfMemoryError: unable to create new native thread
	at java.lang.Thread.start0(Native Method)
	at java.lang.Thread.start(Unknown Source)
	at java.util.Timer.<init>(Unknown Source)
	at mv.<init>(SourceFile:22)
	at net.minecraft.server.MinecraftServer.<init>(SourceFile:43)
	at bkz.<init>(SourceFile:36)
	at atv.a(SourceFile:1431)
	at awh.e(SourceFile:157)
	at awh.a(SourceFile:122)
	at awe.a(SourceFile:69)
	at awe.d(SourceFile:128)
	at awe.m(SourceFile:107)
	at atv.k(SourceFile:1158)
	at atv.S(SourceFile:663)
	at atv.d(SourceFile:619)
	at net.minecraft.client.main.Main.main(SourceFile:101)


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

-- Head --
Stacktrace:
	at java.lang.Thread.start0(Native Method)
	at java.lang.Thread.start(Unknown Source)
	at java.util.Timer.<init>(Unknown Source)
	at mv.<init>(SourceFile:22)
	at net.minecraft.server.MinecraftServer.<init>(SourceFile:43)
	at bkz.<init>(SourceFile:36)
	at atv.a(SourceFile:1431)
	at awh.e(SourceFile:157)
	at awh.a(SourceFile:122)
	at awe.a(SourceFile:69)
	at awe.d(SourceFile:128)
	at awe.m(SourceFile:107)

-- Affected screen --
Details:
	Screen name: blt
Stacktrace:
	at atv.k(SourceFile:1158)
	at atv.S(SourceFile:663)
	at atv.d(SourceFile:619)
	at net.minecraft.client.main.Main.main(SourceFile:101)

-- System Details --
Details:
	Minecraft Version: 1.6.4
	Operating System: Windows XP (x86) version 5.1
	Java Version: 1.7.0_25, Oracle Corporation
	Java VM Version: Java HotSpot(TM) Client VM (mixed mode), Oracle Corporation
	Memory: 332532960 bytes (317 MB) / 480006144 bytes (457 MB) up to 1520435200 bytes (1450 MB)
	JVM Flags: 2 total; -XX:HeapDumpPath=MojangTricksIntelDriversForPerformance_javaw.exe_minecraft.exe.heapdump -Xmx1500M
	AABB Pool Size: 0 (0 bytes; 0 MB) allocated, 0 (0 bytes; 0 MB) used
	Suspicious classes: No suspicious classes found.
	IntCache: cache: 0, tcache: 0, allocated: 3, tallocated: 63
	Launched Version: 1.6.4
	LWJGL: 2.9.0
	OpenGL: RADEON X300 x86/SSE2 GL version 2.0.5279 WinXP Release, ATI Technologies Inc.
	Is Modded: Probably not. Jar signature remains and client brand is untouched.
	Type: Client (map_client.txt)
	Resource Pack: Default
	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-191200/12424629/