Mod edit:
An installed HP QuickTest Professional (QTP) injects itself into the JVM when executing Minecraft.
Result: java.lang.ClassFormatError: Truncated class file
Can not launch Minecraft
What I expected to happen was...:
Minecraft launcher finishes and game opens.
What actually happened was...:
Error message in launcher.
---- Minecraft Crash Report ---- // Oh - I know what I did wrong! Time: 10/6/13 11:09 AM Description: Initializing game java.lang.ClassFormatError: Truncated class file at java.lang.ClassLoader.findBootstrapClass(Native Method) at java.lang.ClassLoader.findBootstrapClassOrNull(Unknown Source) at java.lang.ClassLoader.loadClass(Unknown Source) at java.lang.ClassLoader.loadClass(Unknown Source) at sun.misc.Launcher$AppClassLoader.loadClass(Unknown Source) at java.lang.ClassLoader.loadClass(Unknown Source) 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$1.run(Unknown Source) at java.security.AccessController.doPrivileged(Native Method) at java.net.URLClassLoader.findClass(Unknown Source) at java.lang.ClassLoader.loadClass(Unknown Source) at sun.misc.Launcher$AppClassLoader.loadClass(Unknown Source) at java.lang.ClassLoader.loadClass(Unknown Source) at atv.O(SourceFile:391) at atv.d(SourceFile:599) at net.minecraft.client.main.Main.main(SourceFile:101) A detailed walkthrough of the error, its code path and all known details is as follows: --------------------------------------------------------------------------------------- -- Head -- Stacktrace: at java.lang.ClassLoader.findBootstrapClass(Native Method) at java.lang.ClassLoader.findBootstrapClassOrNull(Unknown Source) at java.lang.ClassLoader.loadClass(Unknown Source) at java.lang.ClassLoader.loadClass(Unknown Source) at sun.misc.Launcher$AppClassLoader.loadClass(Unknown Source) at java.lang.ClassLoader.loadClass(Unknown Source) 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$1.run(Unknown Source) at java.security.AccessController.doPrivileged(Native Method) at java.net.URLClassLoader.findClass(Unknown Source) at java.lang.ClassLoader.loadClass(Unknown Source) at sun.misc.Launcher$AppClassLoader.loadClass(Unknown Source) at java.lang.ClassLoader.loadClass(Unknown Source) at atv.O(SourceFile:391) -- Initialization -- Details: Stacktrace: at atv.d(SourceFile:599) at net.minecraft.client.main.Main.main(SourceFile:101) -- System Details -- Details: Minecraft Version: 1.6.4 Operating System: Windows 7 (amd64) version 6.1 Java Version: 1.7.0_25, Oracle Corporation Java VM Version: Java HotSpot(TM) 64-Bit Server VM (mixed mode), Oracle Corporation Memory: 34155640 bytes (32 MB) / 90046464 bytes (85 MB) up to 954466304 bytes (910 MB) JVM Flags: 4 total; -XX:HeapDumpPath=MojangTricksIntelDriversForPerformance_javaw.exe_minecraft.exe.heapdump -Xmx1G -Xrunjvmhook -Xbootclasspath/a:C:\PROGRA~2\HP\QUICKT~1\bin\JAVA_S~1\classes;C:\PROGRA~2\HP\QUICKT~1\bin\JAVA_S~1\classes\jasmine.jar 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 Launched Version: 1.6.4 LWJGL: 2.9.0 OpenGL: AMD Radeon HD 6800 Series GL version 4.1.10750 Compatibility Profile Context, ATI Technologies Inc. Is Modded: Probably not. Jar signature remains and client brand is untouched. Type: Client (map_client.txt) Resource Pack: Default Current Language: English (US) Profiler Position: N/A (disabled) Vec3 Pool Size: ~~ERROR~~ NullPointerException: null
Steps to Reproduce:
1. Double click minecraft.exe
2. click play after user profile is selected
3. error occurs