Git clone fails on slave if master is Java 6, slave is Java 6 or 7 and wildcard in branch name

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      I have Jenkins running on a Linux machine as master, and a slave on the same machine. Git clone's fail on the slave, but work on master. Running Java 1.6 on the master and Java 1.7 on the slave.

      I've restarted the slave, and upgraded to the latest git-plugin.

      Exception on slave is:

      I seems like the root cause is:

      Caused by: java.lang.UnsupportedClassVersionError: org/eclipse/jgit/util/Java7FSFactory : Unsupported major.minor version 51.0

      Why does this happen on a slave, and not on a master node? Does your plugin support Java 1.7?

      FATAL: java.io.IOException: Remote call on fwjsfimat15_Linux_caeadm failed
hudson.remoting.RemotingSystemException: java.io.IOException: Remote call on fwjsfimat15_Linux_caeadm failed
	at hudson.remoting.RemoteInvocationHandler.invoke(RemoteInvocationHandler.java:195)
	at $Proxy75.getRemoteBranches(Unknown Source)
	at org.jenkinsci.plugins.gitclient.RemoteGitImpl.getRemoteBranches(RemoteGitImpl.java:485)
	at hudson.plugins.git.util.GitUtils.getAllBranchRevisions(GitUtils.java:47)
	at hudson.plugins.git.util.DefaultBuildChooser.getAdvancedCandidateRevisions(DefaultBuildChooser.java:204)
	at hudson.plugins.git.util.DefaultBuildChooser.getCandidateRevisions(DefaultBuildChooser.java:53)
	at hudson.plugins.git.GitSCM.determineRevisionToBuild(GitSCM.java:995)
	at hudson.plugins.git.GitSCM.checkout(GitSCM.java:1098)
	at hudson.scm.SCM.checkout(SCM.java:484)
	at hudson.model.AbstractProject.checkout(AbstractProject.java:1274)
	at hudson.model.AbstractBuild$AbstractBuildExecution.defaultCheckout(AbstractBuild.java:609)
	at jenkins.scm.SCMCheckoutStrategy.checkout(SCMCheckoutStrategy.java:86)
	at hudson.model.AbstractBuild$AbstractBuildExecution.run(AbstractBuild.java:531)
	at hudson.model.Run.execute(Run.java:1738)
	at hudson.maven.MavenModuleSetBuild.run(MavenModuleSetBuild.java:531)
	at hudson.model.ResourceController.execute(ResourceController.java:98)
	at hudson.model.Executor.run(Executor.java:381)
Caused by: java.io.IOException: Remote call on fwjsfimat15_Linux_caeadm failed
	at hudson.remoting.Channel.call(Channel.java:761)
	at hudson.remoting.RemoteInvocationHandler.invoke(RemoteInvocationHandler.java:179)
	... 16 more
Caused by: java.lang.LinkageError: Failed to load org.eclipse.jgit.util.Java7FSFactory
	at hudson.remoting.RemoteClassLoader$ClassLoaderProxy.fetch4(RemoteClassLoader.java:745)
	at hudson.remoting.RemoteClassLoader$ClassLoaderProxy.fetch3(RemoteClassLoader.java:785)
	at sun.reflect.GeneratedMethodAccessor52.invoke(Unknown Source)
	at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
	at java.lang.reflect.Method.invoke(Method.java:597)
	at hudson.remoting.RemoteInvocationHandler$RPCRequest.perform(RemoteInvocationHandler.java:326)
	at hudson.remoting.Request$2.run(Request.java:325)
	at hudson.remoting.InterceptingExecutorService$1.call(InterceptingExecutorService.java:68)
	at org.jenkinsci.remoting.CallableDecorator.call(CallableDecorator.java:18)
	at hudson.remoting.CallableDecoratorList$1.call(CallableDecoratorList.java:21)
	at jenkins.util.ContextResettingExecutorService$2.call(ContextResettingExecutorService.java:46)
	at java.util.concurrent.FutureTask$Sync.innerRun(FutureTask.java:303)
	at java.util.concurrent.FutureTask.run(FutureTask.java:138)
	at java.util.concurrent.ThreadPoolExecutor$Worker.runTask(ThreadPoolExecutor.java:886)
	at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:908)
	at java.lang.Thread.run(Thread.java:662)
	at ......remote call to channel(Native Method)
	at hudson.remoting.Channel.attachCallSiteStackTrace(Channel.java:1360)
	at hudson.remoting.Request.call(Request.java:171)
	at hudson.remoting.RemoteInvocationHandler.invoke(RemoteInvocationHandler.java:182)
	at com.sun.proxy.$Proxy6.fetch3(Unknown Source)
	at hudson.remoting.RemoteClassLoader.findClass(RemoteClassLoader.java:157)
	at java.lang.ClassLoader.loadClass(ClassLoader.java:425)
	at java.lang.ClassLoader.loadClass(ClassLoader.java:358)
	at java.lang.Class.forName0(Native Method)
	at java.lang.Class.forName(Class.java:190)
	at org.eclipse.jgit.util.FS.detect(FS.java:152)
	at org.eclipse.jgit.util.FS.detect(FS.java:125)
	at org.eclipse.jgit.util.FS.<clinit>(FS.java:115)
	at org.eclipse.jgit.lib.BaseRepositoryBuilder.setupWorkTree(BaseRepositoryBuilder.java:620)
	at org.eclipse.jgit.lib.BaseRepositoryBuilder.setup(BaseRepositoryBuilder.java:556)
	at org.eclipse.jgit.storage.file.FileRepositoryBuilder.build(FileRepositoryBuilder.java:92)
	at org.eclipse.jgit.storage.file.FileRepositoryBuilder.create(FileRepositoryBuilder.java:110)
	at org.jenkinsci.plugins.gitclient.CliGitAPIImpl.getRepository(CliGitAPIImpl.java:2312)
	at hudson.plugins.git.GitAPI.getRepository(GitAPI.java:269)
	at org.jenkinsci.plugins.gitclient.CliGitAPIImpl.getRemoteBranches(CliGitAPIImpl.java:1858)
	at hudson.plugins.git.GitAPI.getRemoteBranches(GitAPI.java:212)
	at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
	at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57)
	at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
	at java.lang.reflect.Method.invoke(Method.java:606)
	at hudson.remoting.RemoteInvocationHandler$RPCRequest.perform(RemoteInvocationHandler.java:326)
	at hudson.remoting.RemoteInvocationHandler$RPCRequest.call(RemoteInvocationHandler.java:301)
	at hudson.remoting.RemoteInvocationHandler$RPCRequest.call(RemoteInvocationHandler.java:260)
	at hudson.remoting.UserRequest.perform(UserRequest.java:121)
	at hudson.remoting.UserRequest.perform(UserRequest.java:49)
	at hudson.remoting.Request$2.run(Request.java:325)
	at hudson.remoting.InterceptingExecutorService$1.call(InterceptingExecutorService.java:68)
	at java.util.concurrent.FutureTask.run(FutureTask.java:262)
	at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1145)
	at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:615)
	at java.lang.Thread.run(Thread.java:745)
	at ......remote call to fwjsfimat15_Linux_caeadm(Native Method)
	at hudson.remoting.Channel.attachCallSiteStackTrace(Channel.java:1360)
	at hudson.remoting.UserResponse.retrieve(UserRequest.java:221)
	at hudson.remoting.Channel.call(Channel.java:753)
	... 17 more
Caused by: java.lang.UnsupportedClassVersionError: org/eclipse/jgit/util/Java7FSFactory : Unsupported major.minor version 51.0
	at java.lang.ClassLoader.defineClass1(Native Method)
	at java.lang.ClassLoader.defineClassCond(ClassLoader.java:631)
	at java.lang.ClassLoader.defineClass(ClassLoader.java:615)
	at jenkins.util.AntClassLoader.defineClassFromData(AntClassLoader.java:1138)
	at hudson.ClassicPluginStrategy$AntClassLoader2.defineClassFromData(ClassicPluginStrategy.java:799)
	at jenkins.util.AntClassLoader.getClassFromStream(AntClassLoader.java:1309)
	at jenkins.util.AntClassLoader.findClassInComponents(AntClassLoader.java:1365)
	at jenkins.util.AntClassLoader.findClass(AntClassLoader.java:1325)
	at jenkins.util.AntClassLoader.loadClass(AntClassLoader.java:1078)
	at java.lang.ClassLoader.loadClass(ClassLoader.java:247)
	at hudson.remoting.RemoteClassLoader$ClassLoaderProxy.fetch4(RemoteClassLoader.java:743)
	at hudson.remoting.RemoteClassLoader$ClassLoaderProxy.fetch3(RemoteClassLoader.java:785)
	at sun.reflect.GeneratedMethodAccessor52.invoke(Unknown Source)
	at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
	at java.lang.reflect.Method.invoke(Method.java:597)
	at hudson.remoting.RemoteInvocationHandler$RPCRequest.perform(RemoteInvocationHandler.java:326)
	at hudson.remoting.Request$2.run(Request.java:325)
	at hudson.remoting.InterceptingExecutorService$1.call(InterceptingExecutorService.java:68)
	at org.jenkinsci.remoting.CallableDecorator.call(CallableDecorator.java:18)
	at hudson.remoting.CallableDecoratorList$1.call(CallableDecoratorList.java:21)
	at jenkins.util.ContextResettingExecutorService$2.call(ContextResettingExecutorService.java:46)
	at java.util.concurrent.FutureTask$Sync.innerRun(FutureTask.java:303)
	at java.util.concurrent.FutureTask.run(FutureTask.java:138)
	at java.util.concurrent.ThreadPoolExecutor$Worker.runTask(ThreadPoolExecutor.java:886)
	at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:908)
	at java.lang.Thread.run(Thread.java:662)

            Assignee:
            Unassigned
            Reporter:
            David Ishee
            Archiver:
            Jenkins Service Account

              Created:
              Updated:
              Resolved:
              Archived: