Minecraft has crashed! Minecraft has stopped running because it encountered a problem.

Mods loaded: 3
ModLoader 1.2.3
mod_CraftGuide 1.4.0
mod_WorldEditCUI 1.2 for Minecraft version 1.2
Minecraft has crashed!
----------------------
Minecraft has stopped running because it encountered a problem.
--- BEGIN ERROR REPORT 13c7b39a --------
Generated 17.07.12 18:48
Minecraft: Minecraft 1.2.3
OS: Windows XP (x86) version 5.1
Java: 1.7.0_05, Oracle Corporation
VM: Java HotSpot(TM) Client VM (mixed mode), Oracle Corporation
LWJGL: 2.4.2
OpenGL: GeForce 9600 GT/PCIe/SSE2/3DNOW! version 3.3.0, NVIDIA Corporation
java.lang.VerifyError: Cannot inherit from final class
at java.lang.ClassLoader.defineClass1(Native Method)
at java.lang.ClassLoader.defineClass(Unknown Source)
at java.security.SecureClassLoader.defineClass(Unknown Source)
at java.net.URLClassLoader.defineClass(Unknown Source)
at java.net.URLClassLoader.access$100(Unknown Source)
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 java.lang.ClassLoader.loadClass(Unknown Source)
at mod_CraftGuide.addItems(mod_CraftGuide.java:74)
at mod_CraftGuide.load(mod_CraftGuide.java:45)
at ModLoader.init(ModLoader.java:890)
at ModLoader.addAllRenderers(ModLoader.java:186)
at aho.<init>(aho.java:79)
at aho.<clinit>(aho.java:9)
at net.minecraft.client.Minecraft.a(SourceFile:267)
at net.minecraft.client.Minecraft.run(SourceFile:650)
at java.lang.Thread.run(Unknown Source)
--- END ERROR REPORT 52e1a79e