[MC-53] Run-time exception on start up (java.lang.NoClassDefFoundError: org/lwjgl/LWJGLException)

***NOTE: normal minecraft runs just fine..

Exception in thread "main" java.lang.NoClassDefFoundError: org/lwjgl/LWJGLExcept
ion
        at java.lang.Class.getDeclaredMethods0(Native Method)
        at java.lang.Class.privateGetDeclaredMethods(Unknown Source)
        at java.lang.Class.getMethod0(Unknown Source)
        at java.lang.Class.getMethod(Unknown Source)
        at sun.launcher.LauncherHelper.getMainMethod(Unknown Source)
        at sun.launcher.LauncherHelper.checkAndLoadMain(Unknown Source)
Caused by: java.lang.ClassNotFoundException: org.lwjgl.LWJGLException
        at java.net.URLClassLoader$1.run(Unknown Source)
        at java.net.URLClassLoader$1.run(Unknown Source)
        at java.security.AccessController.doPrivileged(Native Method)
        at java.net.URLClassLoader.findClass(Unknown Source)
        at java.lang.ClassLoader.loadClass(Unknown Source)
        at sun.misc.Launcher$AppClassLoader.loadClass(Unknown Source)
        at java.lang.ClassLoader.loadClass(Unknown Source)
        ... 6 more

Comments 4

krabbit 2012-10-24T19:57:47Z

I receive the same exception with:

Minecraft 1.4.2 pre
Windows 7 64x
java version "1.7.0_03"
Java(TM) SE Runtime Environment (build 1.7.0_03-b05)
Java HotSpot(TM) 64-Bit Server VM (build 22.1-b02, mixed mode)

Erik Broes 2012-10-25T03:52:59Z

http://www.minecraftwiki.net/wiki/Tutorials/How_to_Install_a_Snapshot

That should resolve it 🙂

Valerio Schiavoni 2012-12-10T20:55:02Z

I get the same problem on a different platform. I tried the fix suggested in previous comment, using the latest snapshot, but I get the same error. Here's the complete stacktrace:

Minecraft Crash Report ----
// On the bright side, I bought you a teddy bear!

Time: 10/12/12 21.51
Description: Failed to start game

org.lwjgl.LWJGLException: Could not get the JAWT interface
at org.lwjgl.opengl.AWTSurfaceLock.lockAndInitHandle(Native Method)
at org.lwjgl.opengl.AWTSurfaceLock.access$100(AWTSurfaceLock.java:49)
at org.lwjgl.opengl.AWTSurfaceLock$1.run(AWTSurfaceLock.java:89)
at java.security.AccessController.doPrivileged(Native Method)
at org.lwjgl.opengl.AWTSurfaceLock.privilegedLockAndInitHandle(AWTSurfaceLock.java:86)
at org.lwjgl.opengl.AWTSurfaceLock.lockAndGetHandle(AWTSurfaceLock.java:64)
at org.lwjgl.opengl.MacOSXCanvasPeerInfo.initHandle(MacOSXCanvasPeerInfo.java:53)
at org.lwjgl.opengl.MacOSXDisplayPeerInfo.doLockAndInitHandle(MacOSXDisplayPeerInfo.java:56)
at org.lwjgl.opengl.PeerInfo.lockAndGetHandle(PeerInfo.java:85)
at org.lwjgl.opengl.MacOSXContextImplementation.create(MacOSXContextImplementation.java:47)
at org.lwjgl.opengl.Context.<init>(Context.java:120)
at org.lwjgl.opengl.Display.create(Display.java:858)
at org.lwjgl.opengl.Display.create(Display.java:784)
at org.lwjgl.opengl.Display.create(Display.java:765)
at net.minecraft.client.Minecraft.a(SourceFile:232)
at asq.a(SourceFile:56)
at net.minecraft.client.Minecraft.run(SourceFile:515)
at java.lang.Thread.run(Thread.java:722)

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

– System Details –
Details:
Minecraft Version: 12w49a
Operating System: Mac OS X (x86_64) version 10.8.2
Java Version: 1.7.0_09, Oracle Corporation
Java VM Version: Java HotSpot(TM) 64-Bit Server VM (mixed mode), Oracle Corporation
Memory: 771533264 bytes (735 MB) / 1029046272 bytes (981 MB) up to 1029046272 bytes (981 MB)
JVM Flags: 3 total; -Xbootclasspath/a:/Library/Internet Plug-Ins/JavaAppletPlugin.plugin/Contents/Home/lib/deploy.jar:/Library/Internet Plug-Ins/JavaAppletPlugin.plugin/Contents/Home/lib/javaws.jar:/Library/Internet Plug-Ins/JavaAppletPlugin.plugin/Contents/Home/lib/plugin.jar -Xmx1g -Xms1024M
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: 0, tallocated: 0
LWJGL: 2.4.2
OpenGL: ~_ERROR~ NullPointerException: null
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%

Valerio Schiavoni 2012-12-10T21:39:40Z

I've also tried upgrading the LWJGL files as suggested in http://www.minecraftwiki.net/wiki/LWJGL. The result of this operation is that when I try to start the demo there's only a white screen (no more crash report), but the game doesn't seem to start.