Re: A fatal exception occurred: Bad version number in .class file
Re: A fatal exception occurred: Bad version number in .class file
- Subject: Re: A fatal exception occurred: Bad version number in .class file
- From: Pascal Robert <email@hidden>
- Date: Tue, 12 Feb 2013 19:01:02 -0500
Dirty way to find which classes are built with Java 6:
- Copy the app in a temporary folder, like /tmp
- find MyApp.woa -name '*.jar' -exec unzip {} \;
- find . -name '*.class' -exec file {} \; | grep "version 50"
> Hi all,
>
> I'm trying to deploy to a server running Java 1.5 and I am getting the error A fatal exception occurred: Bad version number in .class file when I start up the app.
>
> So on my development box:
>
> I deleted all my frameworks.
>
> I installed the binaries of Wonder Integration from Jenkins.
>
> I have the compiler settings set to 1.5 in Eclipse, I deleted my frameworks' bin folders, then built inside Eclipse using Ant install....
>
> Does anyone know how I could still be getting 1.6 byte code?
>
> Thanks,
> David
>
>
> Feb 12 15:32:40 APP [50883] WARN NSLog - A fatal exception occurred: Bad version number in .class file
> [2013-2-12 15:32:40 PST] <main> java.lang.UnsupportedClassVersionError: Bad version number in .class file
> at java.lang.ClassLoader.defineClass1(Native Method)
> at java.lang.ClassLoader.defineClass(ClassLoader.java:620)
> at java.security.SecureClassLoader.defineClass(SecureClassLoader.java:124)
> at java.net.URLClassLoader.defineClass(URLClassLoader.java:260)
> at java.net.URLClassLoader.access$100(URLClassLoader.java:56)
> at java.net.URLClassLoader$1.run(URLClassLoader.java:195)
> at java.security.AccessController.doPrivileged(Native Method)
> at java.net.URLClassLoader.findClass(URLClassLoader.java:188)
> at java.lang.ClassLoader.loadClass(ClassLoader.java:306)
> at java.lang.ClassLoader.loadClass(ClassLoader.java:251)
> at java.lang.ClassLoader.loadClassInternal(ClassLoader.java:319)
> at java.lang.ClassLoader.defineClass1(Native Method)
> at java.lang.ClassLoader.defineClass(ClassLoader.java:620)
> at java.security.SecureClassLoader.defineClass(SecureClassLoader.java:124)
> at java.net.URLClassLoader.defineClass(URLClassLoader.java:260)
> at java.net.URLClassLoader.access$100(URLClassLoader.java:56)
> at java.net.URLClassLoader$1.run(URLClassLoader.java:195)
> at java.security.AccessController.doPrivileged(Native Method)
> at java.net.URLClassLoader.findClass(URLClassLoader.java:188)
> at java.lang.ClassLoader.loadClass(ClassLoader.java:306)
> at java.lang.ClassLoader.loadClass(ClassLoader.java:251)
> at java.lang.ClassLoader.loadClassInternal(ClassLoader.java:319)
> at er.extensions.appserver.ERXApplication.installPatches(ERXApplication.java:1064)
> at er.extensions.appserver.ERXApplication.<init>(ERXApplication.java:1147)
> at ca.cscw.app.appserver.Application.<init>(Application.java:18)
> at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method)
> at sun.reflect.NativeConstructorAccessorImpl.newInstance(NativeConstructorAccessorImpl.java:39)
> at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:27)
> at java.lang.reflect.Constructor.newInstance(Constructor.java:494)
> at java.lang.Class.newInstance0(Class.java:350)
> at java.lang.Class.newInstance(Class.java:303)
> at com.webobjects.appserver.WOApplication.main(WOApplication.java:547)
> at er.extensions.appserver.ERXApplication.main(ERXApplication.java:861)
> at ca.cscw.app.appserver.Application.main(Application.java:15)
> at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
> at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
> at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
> at java.lang.reflect.Method.invoke(Method.java:585)
> at com.webobjects._bootstrap.WOBootstrap.main(WOBootstrap.java:87)
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