Minecraft Forums

So when ever i try to join a server (modded or non modded client) it just black screens and this error log shows up:

  Minecraft has crashed!	 
	  ----------------------	 
Minecraft has stopped running because it encountered a problem; Unexpected error
This error has been saved to /Users/matthew/Library/Application Support/minecraft/crash-reports/crash-2012-10-19_15.02.58-client.txt for your convenience. Please include a copy of this file if you report this crash to anyone.
--- BEGIN ERROR REPORT 42fc88af --------
Generated 10/19/12 3:02 PM
- Minecraft Version: 1.3.2
- Operating System: Mac OS X (x86_64) version 10.8.2
- Java Version: 1.6.0_35, Apple Inc.
- Java VM Version: Java HotSpot(TM) 64-Bit Server VM (mixed mode), Apple Inc.
- Memory: 523847616 bytes (499 MB) / 581435392 bytes (554 MB) up to 1065025536 bytes (1015 MB)
- JVM Flags: 3 total; -Xbootclasspath/a:/System/Library/PrivateFrameworks/JavaApplicationLauncher.framework/Resources/LauncherSupport.jar -Xms512M -Xmx1024M
- LWJGL: 2.4.2
- OpenGL: ATI Radeon HD 6970M OpenGL Engine GL version 2.1 ATI-1.0.29, ATI Technologies Inc.
- Is Modded: Probably not
- Type: Client
- Texture Pack: Default
- Profiler Position: N/A (disabled)
- World MpServer Entities: 2 total; [atg['upspostal'/497, l='MpServer', x=-46.00, y=72.62, z=-43.00], aur['Yamata4TW'/4, l='MpServer', x=-45.94, y=72.16, z=-34.97]]
- World MpServer Players: 2 total; [atg['upspostal'/497, l='MpServer', x=-46.00, y=72.62, z=-43.00], aur['Yamata4TW'/4, l='MpServer', x=-45.94, y=72.16, z=-34.97]]
- World MpServer Chunk Stats: MultiplayerChunkCache: 0
- Forced Entities: 3 total; [atg['upspostal'/497, l='MpServer', x=-46.00, y=72.62, z=-43.00], aur['Yamata4TW'/4, l='MpServer', x=-45.94, y=72.16, z=-34.97], aur['Yamata4TW'/4, l='MpServer', x=-45.94, y=72.16, z=-34.97]]
- Retry Entities: 0 total; []
java.lang.NullPointerException
at avz.a(SourceFile:29)
at awa.a(SourceFile:29)
at awa.a(SourceFile:14)
at avy.a(SourceFile:168)
at aul.a(SourceFile:64)
at aub.b(SourceFile:115)
at auw.a(SourceFile:801)
at auw.b(SourceFile:685)
at net.minecraft.client.Minecraft.J(SourceFile:607)
at net.minecraft.client.Minecraft.run(SourceFile:535)
at java.lang.Thread.run(Thread.java:680)
--- END ERROR REPORT 948e98a7 ----------

any help would be greatly appreciated!

Quote from webrosc

Have you done a force update of minecraft?

yes, ive tried everything from force update to clean.minecrafts

Try reinstalling Java (dont forget to delete the current version you have)