MIke:
I unjar'd my app.jar yesterday and did `file Application.class` and it returned
version 49 - so it looked normal. I am running now though. On Eclipse's
'Installed JREs' preference pane, I checked "JVM 1.6.0 (MacOS X Default)." I
had previously selected 1.5 there. The compliance setting has always been at
1.5. But my next build ran.
The weird thing is that I haven't changed any JVM or java settings in recent
weeks. I have no idea why that change effected anything. I hadn't changed any
java settings recently. And I have no idea which classes I produced were
wrongly versioned since everything I looked at seemed correct.
Tim Worman
UCLA GSE&IS
On Nov 20, 2009, at 5:05 AM, Mike Schrag wrote:
> your bootstrap class actually loaded, so it looks like it's one of your other
> classes ... In particular, I suspect your Application class is built 1.6,
> since it's failing on the first defineClass call.
>
> unjar your application jar and run
>
> find . -name '*.class' -exec file {} \; | grep 50
>
> I would add a source and target declaration to your wocompile step in
> build.xml, or pass in -source and -target to ant. I don't think ant building,
> even from eclipse, cares about your JDK setting.
>
> ms
>
> On Nov 20, 2009, at 2:35 AM, Tim Worman wrote:
>
>> I am getting this error all-the-sudden and it appears to be related to this.
>>
>> java.lang.UnsupportedClassVersionError: Bad version number in .class file
>> at java.lang.ClassLoader.defineClass1(Native Method)
>> at java.lang.ClassLoader.defineClass(ClassLoader.java:675)
>> 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:316)
>> at java.lang.ClassLoader.loadClass(ClassLoader.java:251)
>> at java.lang.ClassLoader.loadClassInternal(ClassLoader.java:374)
>> at java.lang.ClassLoader.defineClass1(Native Method)
>> at java.lang.ClassLoader.defineClass(ClassLoader.java:675)
>> 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:316)
>> at java.lang.ClassLoader.loadClass(ClassLoader.java:251)
>> at com.webobjects._bootstrap.WOBootstrap.main(WOBootstrap.java:84)
>>
>> Obviously something's changed but I haven't changed my setup or installed
>> any new components/software. I have done WOLips updates. I did `file
>> WOBootstrap.class` and it returned "version 49.0 (Java 1.5)." It was the
>> same on the deployment machine. The JDK compliance in Eclipse is set to Java
>> 1.5 on my dev machine.
>>
>> I've been banging my head against it and can't seem to figure what else I
>> have to do to get this to run - or why my compile products are different
>> suddenly.
>>
>> Tim Worman
>> UCLA GSE&IS
>>
>>
>>
>> On Nov 11, 2009, at 8:36 PM, Mike Schrag wrote:
>>
>>> For anyone who is getting an unexplained UnsupportedClassVersion error at
>>> startup -- unjar your WOBoostrap.jar and run file on the WOBoostrap.class.
>>> George Domurot and I just discovered that there is at least one
>>> WOBoostrap.jar floating around the intertubes that was built with 1.6 and
>>> has a 50.0 version number. Possibly this came from a Snow Leopard developer
>>> preview? This file comes from whatever machine performed your build and
>>> typically is found in
>>> /System/Library/WebObjects/JavaApplications/wotaskd.woa/WOBoostrap.jar
>>> (though the precise location is defined in your wolips.properties). I
>>> don't know how widespread that 1.6 build is, but if you've got it, this
>>> might save you a lot of insanity.
>>>
>>> ms
>>>
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>
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