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Of late I'm seeing the following exception quite often: Started by an SCM change Building remotely on hudson-slave2 Checkout:swtbot-e35 / /opt/users/hudsonbuild/workspace/swtbot-e35 - hudson.remoting.Channel@54929696:hudson-slave2 Using strategy: Default Last Built Revision: Revision b918d9e55d27df81d32cb1030457db07815f23c6 (origin/master) hudson.util.IOException2: remote file operation failed: /opt/users/hudsonbuild/workspace/swtbot-e35 at hudson.remoting.Channel@54929696:hudson-slave2 at hudson.FilePath.act(FilePath.java:749) at hudson.FilePath.act(FilePath.java:735) at hudson.plugins.git.GitSCM.checkout(GitSCM.java:658) at hudson.model.AbstractProject.checkout(AbstractProject.java:1118) at hudson.model.AbstractBuild$AbstractRunner.checkout(AbstractBuild.java:480) at hudson.model.AbstractBuild$AbstractRunner.run(AbstractBuild.java:412) at hudson.model.Run.run(Run.java:1337) at hudson.model.FreeStyleBuild.run(FreeStyleBuild.java:46) at hudson.model.ResourceController.execute(ResourceController.java:88) at hudson.model.Executor.run(Executor.java:140) Caused by: java.io.IOException: Remote call on hudson-slave2 failed at hudson.remoting.Channel.call(Channel.java:638) at hudson.FilePath.act(FilePath.java:742) ... 9 more Caused by: java.lang.LinkageError: loader (instance of hudson/remoting/RemoteClassLoader): attempted duplicate class definition for name: "hudson/scm/ChangeLogSet$AffectedFile" at java.lang.ClassLoader.defineClass1(Native Method) at java.lang.ClassLoader.defineClassCond(ClassLoader.java:632) at java.lang.ClassLoader.defineClass(ClassLoader.java:616) at java.lang.ClassLoader.defineClass(ClassLoader.java:466) at hudson.remoting.RemoteClassLoader.loadClassFile(RemoteClassLoader.java:151) at hudson.remoting.RemoteClassLoader.findClass(RemoteClassLoader.java:131) at java.lang.ClassLoader.loadClass(ClassLoader.java:307) at java.lang.ClassLoader.loadClass(ClassLoader.java:248) at java.lang.ClassLoader.defineClass1(Native Method) at java.lang.ClassLoader.defineClassCond(ClassLoader.java:632) at java.lang.ClassLoader.defineClass(ClassLoader.java:616) at java.lang.ClassLoader.defineClass(ClassLoader.java:466) at hudson.remoting.RemoteClassLoader.loadClassFile(RemoteClassLoader.java:151) at hudson.remoting.RemoteClassLoader.findClass(RemoteClassLoader.java:131) at java.lang.ClassLoader.loadClass(ClassLoader.java:307) at java.lang.ClassLoader.loadClass(ClassLoader.java:248) at java.lang.Class.getDeclaredMethods0(Native Method) at java.lang.Class.privateGetDeclaredMethods(Class.java:2427) at java.lang.Class.getDeclaredMethod(Class.java:1935) at java.io.ObjectStreamClass.getPrivateMethod(ObjectStreamClass.java:1382) at java.io.ObjectStreamClass.access$1700(ObjectStreamClass.java:52) at java.io.ObjectStreamClass$2.run(ObjectStreamClass.java:438) at java.security.AccessController.doPrivileged(Native Method) at java.io.ObjectStreamClass.<init>(ObjectStreamClass.java:413) at java.io.ObjectStreamClass.lookup(ObjectStreamClass.java:310) at java.io.ObjectStreamClass.initNonProxy(ObjectStreamClass.java:547) at java.io.ObjectInputStream.readNonProxyDesc(ObjectInputStream.java:1583) at java.io.ObjectInputStream.readClassDesc(ObjectInputStream.java:1496) at java.io.ObjectInputStream.readNonProxyDesc(ObjectInputStream.java:1583) at java.io.ObjectInputStream.readClassDesc(ObjectInputStream.java:1496) at java.io.ObjectInputStream.readOrdinaryObject(ObjectInputStream.java:1732) at java.io.ObjectInputStream.readObject0(ObjectInputStream.java:1329) at java.io.ObjectInputStream.defaultReadFields(ObjectInputStream.java:1947) at java.io.ObjectInputStream.readSerialData(ObjectInputStream.java:1871) at java.io.ObjectInputStream.readOrdinaryObject(ObjectInputStream.java:1753) at java.io.ObjectInputStream.readObject0(ObjectInputStream.java:1329) at java.io.ObjectInputStream.defaultReadFields(ObjectInputStream.java:1947) at java.io.ObjectInputStream.readSerialData(ObjectInputStream.java:1871) at java.io.ObjectInputStream.readOrdinaryObject(ObjectInputStream.java:1753) at java.io.ObjectInputStream.readObject0(ObjectInputStream.java:1329) at java.io.ObjectInputStream.defaultReadFields(ObjectInputStream.java:1947) at java.io.ObjectInputStream.readSerialData(ObjectInputStream.java:1871) at java.io.ObjectInputStream.readOrdinaryObject(ObjectInputStream.java:1753) at java.io.ObjectInputStream.readObject0(ObjectInputStream.java:1329) at java.io.ObjectInputStream.readObject(ObjectInputStream.java:351) at hudson.remoting.UserRequest.deserialize(UserRequest.java:178) at hudson.remoting.UserRequest.perform(UserRequest.java:98) at hudson.remoting.UserRequest.perform(UserRequest.java:48) at hudson.remoting.Request$2.run(Request.java:270) at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:441) 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:619) Archiving artifacts Recording test results Publishing Javadoc Sending e-mails to: ketanpadegaonkar@gmail.com Finished: FAILURE
Me too. Cleaning the workspace helps but the error comes back after the first clean build, e.g.: https://hudson.eclipse.org/hudson/job/mylyn-reviews-nightly/121/
I noticed that this has only happened with hudson-slave2. hudson-slave1 goes smooth. Possible version incompatibility/old binary running on that machine ?
The egit build hits a similar problem on slave1 [1] [1] https://hudson.eclipse.org/hudson/job/egit/1086/console
Yes, it is a Hudson bug, but there doesn't appear to be a fix yet. That looks a lot like this: http://issues.hudson-ci.org/browse/HUDSON-6604 As per bug 339027, stopping all the jobs to get a "clean" restart is essential. *** This bug has been marked as a duplicate of bug 339027 ***
