Build failed in Jenkins: maven-skins #168

[Apache Jenkins Server]

See <https://builds.apache.org/job/maven-skins/168/changes>

Changes:

[Michael-O] Improved chapter 'Skip generation date'

------------------------------------------
Started by an SCM change
Building remotely on solaris1 in workspace 
<https://builds.apache.org/job/maven-skins/ws/>
Updating http://svn.apache.org/repos/asf/maven/skins/trunk at revision 
'2013-07-24T19:34:08.397 +0000'
U         maven-fluido-skin/src/site/apt/index.apt.vm
At revision 1506668
Parsing POMs
[maven-skins] $ /home/hudson/tools/java/latest1.5/bin/java -cp 
/export/home/hudson/hudson-slave/maven3-agent.jar:/home/hudson/tools/maven/apache-maven-3.0.3/boot/plexus-classworlds-2.4.jar
 org.jvnet.hudson.maven3.agent.Maven3Main 
/home/hudson/tools/maven/apache-maven-3.0.3 
/zonestorage/hudson_solaris/home/hudson/hudson-slave/slave.jar 
/export/home/hudson/hudson-slave/maven3-interceptor.jar 
/export/home/hudson/hudson-slave/maven3-interceptor-commons.jar 51700
<===[JENKINS Rchannel started
EMOTING CAPACITY]===>   ERROR: Failed to parse POMs
java.io.IOException: Remote call on Channel to Maven 
[/home/hudson/tools/java/latest1.5/bin/java, -cp, 
/export/home/hudson/hudson-slave/maven3-agent.jar:/home/hudson/tools/maven/apache-maven-3.0.3/boot/plexus-classworlds-2.4.jar,
 org.jvnet.hudson.maven3.agent.Maven3Main, 
/home/hudson/tools/maven/apache-maven-3.0.3, 
/zonestorage/hudson_solaris/home/hudson/hudson-slave/slave.jar, 
/export/home/hudson/hudson-slave/maven3-interceptor.jar, 
/export/home/hudson/hudson-slave/maven3-interceptor-commons.jar, 51700] failed
        at hudson.remoting.Channel.call(Channel.java:722)
        at hudson.maven.ProcessCache$MavenProcess.<init>(ProcessCache.java:112)
        at hudson.maven.ProcessCache.get(ProcessCache.java:231)
        at 
hudson.maven.MavenModuleSetBuild$MavenModuleSetBuildExecution.doRun(MavenModuleSetBuild.java:717)
        at 
hudson.model.AbstractBuild$AbstractBuildExecution.run(AbstractBuild.java:586)
        at hudson.model.Run.execute(Run.java:1593)
        at hudson.maven.MavenModuleSetBuild.run(MavenModuleSetBuild.java:495)
        at hudson.model.ResourceController.execute(ResourceController.java:88)
        at hudson.model.Executor.run(Executor.java:247)
Caused by: java.lang.ClassFormatError: Failed to load 
hudson.maven.ProcessCache$GetSystemProperties
        at 
hudson.remoting.RemoteClassLoader.loadClassFile(RemoteClassLoader.java:291)
        at 
hudson.remoting.RemoteClassLoader.findClass(RemoteClassLoader.java:229)
        at java.lang.ClassLoader.loadClass(ClassLoader.java:307)
        at java.lang.ClassLoader.loadClass(ClassLoader.java:252)
        at java.lang.ClassLoader.loadClassInternal(ClassLoader.java:320)
        at java.lang.Class.forName0(Native Method)
        at java.lang.Class.forName(Class.java:242)
        at 
hudson.remoting.MultiClassLoaderSerializer$Input.resolveClass(MultiClassLoaderSerializer.java:113)
        at 
java.io.ObjectInputStream.readNonProxyDesc(ObjectInputStream.java:1544)
        at java.io.ObjectInputStream.readClassDesc(ObjectInputStream.java:1466)
        at 
java.io.ObjectInputStream.readOrdinaryObject(ObjectInputStream.java:1699)
        at java.io.ObjectInputStream.readObject0(ObjectInputStream.java:1305)
        at java.io.ObjectInputStream.readObject(ObjectInputStream.java:348)
        at hudson.remoting.UserRequest.deserialize(UserRequest.java:182)
        at hudson.remoting.UserRequest.perform(UserRequest.java:98)
        at hudson.remoting.UserRequest.perform(UserRequest.java:48)
        at hudson.remoting.Request$2.run(Request.java:326)
        at 
hudson.remoting.InterceptingExecutorService$1.call(InterceptingExecutorService.java:72)
        at java.util.concurrent.FutureTask$Sync.innerRun(FutureTask.java:269)
        at java.util.concurrent.FutureTask.run(FutureTask.java:123)
        at 
java.util.concurrent.ThreadPoolExecutor$Worker.runTask(ThreadPoolExecutor.java:651)
        at 
java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:676)
        at java.lang.Thread.run(Thread.java:595)
Caused by: java.lang.UnsupportedClassVersionError: Bad version number in .class 
file
        at java.lang.ClassLoader.defineClass1(Native Method)
        at java.lang.ClassLoader.defineClass(ClassLoader.java:621)
        at java.lang.ClassLoader.defineClass(ClassLoader.java:466)
        at 
hudson.remoting.RemoteClassLoader.loadClassFile(RemoteClassLoader.java:289)
        ... 22 more