java.io.IOException: Bad packet id 254

Can't login to a specific server because of an "java.io.IOException: Bad packet id 254" followed by an "NullPointerException". I attached the crashlog from the Minecraft Window and additional the output from the console window.

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Setting user: mrheat, -8270745847486701007
LWJGL Version: 2.8.3

Starting up SoundSystem...
Initializing LWJGL OpenAL
    (The LWJGL binding of OpenAL.  For more information, see http://www.lwjgl.or
g)
OpenAL initialized.

Connecting to 217.198.142.40, 25565
java.io.IOException: Bad packet id 254
        at dx.a(SourceFile:181)
        at bx.i(SourceFile:248)
        at bx.c(SourceFile:23)
        at by.run(SourceFile:101)
java.lang.NullPointerException
        at xe.<init>(SourceFile:126)
        at awz.<init>(SourceFile:39)
        at awr.a(SourceFile:148)
        at do.a(SourceFile:71)
        at bx.b(SourceFile:341)
        at awr.d(SourceFile:98)
        at awz.b(SourceFile:61)
        at net.minecraft.client.Minecraft.l(SourceFile:1282)
        at net.minecraft.client.Minecraft.J(SourceFile:582)
        at net.minecraft.client.Minecraft.run(SourceFile:534)
        at java.lang.Thread.run(Unknown Source)
Stopping!

SoundSystem shutting down...
    Author: Paul Lamb, www.paulscode.com



      Minecraft has crashed!      
      ----------------------      

Minecraft has stopped running because it encountered a problem; Unexpected error
This error has been saved to C:\Dokumente und Einstellungen\Thiemo\Anwendungsdaten\.minecraft\crash-reports\crash-2012-11-05_00.15.00-client.txt for your convenience. Please include a copy of this file if you report this crash to anyone.



--- BEGIN ERROR REPORT 563d5ba --------
Generated 05.11.12 00:15

- Minecraft Version: 1.4.2
- Operating System: Windows XP (x86) version 5.1
- Java Version: 1.6.0_24, Sun Microsystems Inc.
- Java VM Version: Java HotSpot(TM) Client VM (mixed mode, sharing), Sun Microsystems Inc.
- Memory: 36013184 bytes (34 MB) / 74756096 bytes (71 MB) up to 518979584 bytes (494 MB)
- JVM Flags: 1 total; -Xmx512M
- AABB Pool Size: 2849 (159544 bytes; 0 MB) allocated, 37 (2072 bytes; 0 MB) used
- LWJGL: 2.8.3
- OpenGL: Radeon X1650 Series x86/MMX/3DNow!/SSE2 GL version 2.0.7058 WinXP Release, ATI Technologies Inc.
- Is Modded: Probably not
- Type: Client
- Texture Pack: Default
- Profiler Position: N/A (disabled)
- Vec3 Pool Size: 28 (1568 bytes; 0 MB) allocated, 19 (1064 bytes; 0 MB) used
- World MpServer Entities: 8 total; [axc['mrheat'/4095381, l='MpServer', x=-6696,67, y=49,62, z=-3147,49], lq['Painting'/4095441, l='MpServer', x=-6673,06, y=73,50, z=-3139,00], lq['Painting'/4095440, l='MpServer', x=-6680,00, y=74,50, z=-3137,06], lq['Painting'/4095439, l='MpServer', x=-6686,94, y=74,00, z=-3137,50], oi['Chicken'/4095430, l='MpServer', x=-6691,59, y=72,00, z=-3120,41], lm['entity.ItemFrame.name'/4095384, l='MpServer', x=-6697,06, y=49,50, z=-3144,50], lm['entity.ItemFrame.name'/4095383, l='MpServer', x=-6694,94, y=49,50, z=-3144,50], ol['Mooshroom'/4095382, l='MpServer', x=-6700,03, y=35,00, z=-3146,94]]
- World MpServer Players: 1 total; [axc['mrheat'/4095381, l='MpServer', x=-6696,67, y=49,62, z=-3147,49]]
- World MpServer Chunk Stats: MultiplayerChunkCache: 15
- Forced Entities: 11 total; [axc['mrheat'/4095381, l='MpServer', x=-6696,67, y=49,62, z=-3147,49], lq['Painting'/4095441, l='MpServer', x=-6673,06, y=73,50, z=-3139,00], lq['Painting'/4095440, l='MpServer', x=-6680,00, y=74,50, z=-3137,06], lq['Painting'/4095439, l='MpServer', x=-6686,94, y=74,00, z=-3137,50], lq['Painting'/4095439, l='MpServer', x=-6686,94, y=74,00, z=-3137,50], lm['entity.ItemFrame.name'/4095384, l='MpServer', x=-6697,06, y=49,50, z=-3144,50], lm['entity.ItemFrame.name'/4095383, l='MpServer', x=-6694,94, y=49,50, z=-3144,50], ol['Mooshroom'/4095382, l='MpServer', x=-6700,03, y=35,00, z=-3146,94], lq['Painting'/4095441, l='MpServer', x=-6673,06, y=73,50, z=-3139,00], lq['Painting'/4095440, l='MpServer', x=-6680,00, y=74,50, z=-3137,06], oi['Chicken'/4095430, l='MpServer', x=-6691,59, y=72,00, z=-3120,41]]
- Retry Entities: 0 total; []

java.lang.NullPointerException
	at xe.<init>(SourceFile:126)
	at awz.<init>(SourceFile:39)
	at awr.a(SourceFile:148)
	at do.a(SourceFile:71)
	at bx.b(SourceFile:341)
	at awr.d(SourceFile:98)
	at awz.b(SourceFile:61)
	at net.minecraft.client.Minecraft.l(SourceFile:1282)
	at net.minecraft.client.Minecraft.J(SourceFile:582)
	at net.minecraft.client.Minecraft.run(SourceFile:534)
	at java.lang.Thread.run(Unknown Source)
--- END ERROR REPORT 2af703a6 ----------