Out of memory

---- Minecraft Crash Report ----
// Would you like a cupcake?

Time: 4/28/13 12:39 PM
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 aub.z_(SourceFile:89)
	at aus.a(SourceFile:100)
	at ask.a(SourceFile:462)
	at bhw.a(SourceFile:246)
	at aus.a(SourceFile:74)
	at bhw.a(SourceFile:477)
	at aus.d(SourceFile:129)
	at aus.m(SourceFile:113)
	at ask.j(SourceFile:1070)
	at ask.N(SourceFile:574)
	at ask.c(SourceFile:530)
	at net.minecraft.client.main.Main.main(SourceFile:78)


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 aub.z_(SourceFile:89)
	at aus.a(SourceFile:100)
	at ask.a(SourceFile:462)
	at bhw.a(SourceFile:246)
	at aus.a(SourceFile:74)
	at bhw.a(SourceFile:477)
	at aus.d(SourceFile:129)
	at aus.m(SourceFile:113)

-- Affected screen --
Details:
	Screen name: aub
Stacktrace:
	at ask.j(SourceFile:1070)
	at ask.N(SourceFile:574)
	at ask.c(SourceFile:530)
	at net.minecraft.client.main.Main.main(SourceFile:78)

-- System Details --
Details:
	Minecraft Version: 13w17a
	Operating System: Windows 8 (x86) version 6.2
	Java Version: 1.7.0_09, Oracle Corporation
	Java VM Version: Java HotSpot(TM) Client VM (mixed mode), Oracle Corporation
	Memory: 112891536 bytes (107 MB) / 174391296 bytes (166 MB) up to 1037959168 bytes (989 MB)
	JVM Flags: 1 total; -Xmx1G
	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
	LWJGL: 2.9.0
	OpenGL: Intel(R) HD Graphics 4000 GL version 4.0.0 - Build 9.17.10.2875, Intel
	Is Modded: Probably not. Jar signature remains and client brand is untouched.
	Type: Client (map_client.txt)
	Texture Pack: Default
	Profiler Position: N/A (disabled)
	Vec3 Pool Size: ~~ERROR~~ NullPointerException: null