Minecraft Forums

hey guys & girls,

i was playing when i crashed, and got this crash report:

---- Minecraft Crash Report ----
// I let you down. Sorry

Time: 25/04/13 6:48 PM
Description: Rendering screen

java.lang.OutOfMemoryError: unable to create new native thread
at java.lang.Thread.start0(Native Method)
at java.lang.Thread.start(Unknown Source)
at axb.d(SourceFile:393)
at axb.a(SourceFile:342)
at axt.a(SourceFile:276)
at axa.a(SourceFile:266)
at bfr.b(EntityRenderer.java:1168)
at net.minecraft.client.Minecraft.K(SourceFile:597)
at net.minecraft.client.Minecraft.run(SourceFile:526)
at java.lang.Thread.run(Unknown Source)


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 axb.d(SourceFile:393)
at axb.a(SourceFile:342)
at axt.a(SourceFile:276)
at axa.a(SourceFile:266)

-- Screen render details --
Details:
Screen name: axa
Mouse location: Scaled: (325, 176). Absolute: (651, 353)
Screen size: Scaled: (683, 353). Absolute: (1366, 706). Scale factor of 2
Stacktrace:
at bfr.b(EntityRenderer.java:1168)
at net.minecraft.client.Minecraft.K(SourceFile:597)
at net.minecraft.client.Minecraft.run(SourceFile:526)
at java.lang.Thread.run(Unknown Source)

-- System Details --
Details:
Minecraft Version: 1.5.1
Operating System: Windows 7 (x86) version 6.1
Java Version: 1.7.0_17, Oracle Corporation
Java VM Version: Java HotSpot(TM) Client VM (mixed mode), Oracle Corporation
Memory: 325613088 bytes (310 MB) / 519110656 bytes (495 MB) up to 1037959168 bytes (989 MB)
JVM Flags: 2 total; -Xms512m -Xmx1024m
AABB Pool Size: 1030 (57680 bytes; 0 MB) allocated, 0 (0 bytes; 0 MB) used
Suspicious classes: IWrUpdater, Config, WrUpdaterSmooth, ...]
IntCache: cache: 0, tcache: 0, allocated: 3, tallocated: 71
LWJGL: 2.4.2
OpenGL: GeForce GT 230M/PCI/SSE2 GL version 3.0.0, NVIDIA Corporation
Is Modded: Very likely; Jar signature invalidated
Type: Client (map_client.txt)
Texture Pack: Default
Profiler Position: N/A (disabled)
Vec3 Pool Size: ~~ERROR~~ NullPointerException: null


any ideas why, any help would be great thanks,

sirialso i have optifine ultra installed to help reduce lag etc