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  1. Jenkins
  2. JENKINS-29647

java.lang.NoClassDefFoundError thrown by jenkins slave while the class is in the class path.

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      Description

      0. Jenkins slave run for couple days.
      1. Git fetches failed one day suddenly.
      2. Complaint Putty class java.lang.NoClassDefFoundError. although it exists under ~/.jenkins/cache/jars in that slave.

      I assume the jenkins cache is messed up somehow or at least slave process suddenly has wrong memory of whats in the cache.
      so I did below test.
      1. disconnect the jenkins slave to kill slave java process.
      2. rm -rf ~/.jenkins/cache/jars.
      3. bring jenkins slave back online(launche method ssh)
      4. I did see the ~/.jenkins/cache/jars filled with jars. but it does not include
      PuTTYKey and it does not even include class JavaVMArguments.class.
      5. if manually copied jar files in another functional jenkins slave to the cache and re-launche agent, those jars/classes still cant be recognized by slave java process.

      Note: the master jvm uses jdk1.7.75, the slave uses jdk1.7.79.

      12:42:12 - ERROR: Error fetching remote repo 'origin'
      12:42:12 - hudson.plugins.git.GitException: Failed to fetch from git@XXX:YYY.git
      12:42:12 - at hudson.plugins.git.GitSCM.fetchFrom(GitSCM.java:735)
      12:42:12 - at hudson.plugins.git.GitSCM.retrieveChanges(GitSCM.java:983)
      12:42:12 - at hudson.plugins.git.GitSCM.checkout(GitSCM.java:1016)
      12:42:12 - at hudson.scm.SCM.checkout(SCM.java:488)
      12:42:12 - at hudson.model.AbstractProject.checkout(AbstractProject.java:1257)
      12:42:12 - at hudson.model.AbstractBuild$AbstractBuildExecution.defaultCheckout(AbstractBuild.java:622)
      12:42:12 - at jenkins.scm.SCMCheckoutStrategy.checkout(SCMCheckoutStrategy.java:86)
      12:42:12 - at hudson.model.AbstractBuild$AbstractBuildExecution.run(AbstractBuild.java:528)
      12:42:12 - at hudson.model.Run.execute(Run.java:1745)
      12:42:12 - at hudson.model.FreeStyleBuild.run(FreeStyleBuild.java:43)
      12:42:12 - at hudson.model.ResourceController.execute(ResourceController.java:89)
      12:42:12 - at hudson.model.Executor.run(Executor.java:240)
      12:42:12 - Caused by: hudson.plugins.git.GitException: java.io.IOException: Remote call on a004999.com failed
      12:42:12 - at org.jenkinsci.plugins.gitclient.RemoteGitImpl$CommandInvocationHandler.execute(RemoteGitImpl.java:172)
      12:42:12 - at sun.reflect.GeneratedMethodAccessor165.invoke(Unknown Source)
      12:42:12 - at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
      12:42:12 - at java.lang.reflect.Method.invoke(Method.java:606)
      12:42:12 - at org.jenkinsci.plugins.gitclient.RemoteGitImpl$CommandInvocationHandler.invoke(RemoteGitImpl.java:131)
      12:42:12 - at com.sun.proxy.$Proxy48.execute(Unknown Source)
      12:42:12 - at hudson.plugins.git.GitSCM.fetchFrom(GitSCM.java:733)
      12:42:12 - ... 11 more
      12:42:12 - Caused by: java.io.IOException: Remote call on a004999.com failed
      12:42:12 - at hudson.remoting.Channel.call(Channel.java:760)
      12:42:12 - at org.jenkinsci.plugins.gitclient.RemoteGitImpl$CommandInvocationHandler.execute(RemoteGitImpl.java:145)
      12:42:12 - ... 17 more
      12:42:12 - Caused by: java.lang.NoClassDefFoundError: org/kohsuke/putty/PuTTYKey
      12:42:12 - at com.cloudbees.jenkins.plugins.sshcredentials.impl.BasicSSHUserPrivateKey.getPrivateKeys(BasicSSHUserPrivateKey.java:132)
      12:42:12 - at org.jenkinsci.plugins.gitclient.CliGitAPIImpl.createSshKeyFile(CliGitAPIImpl.java:1417)
      12:42:12 - at org.jenkinsci.plugins.gitclient.CliGitAPIImpl.launchCommandWithCredentials(CliGitAPIImpl.java:1295)
      12:42:12 - at org.jenkinsci.plugins.gitclient.CliGitAPIImpl.access$300(CliGitAPIImpl.java:86)
      12:42:12 - at org.jenkinsci.plugins.gitclient.CliGitAPIImpl$1.execute(CliGitAPIImpl.java:324)
      12:42:12 - at org.jenkinsci.plugins.gitclient.RemoteGitImpl$CommandInvocationHandler$1.call(RemoteGitImpl.java:152)
      12:42:12 - at org.jenkinsci.plugins.gitclient.RemoteGitImpl$CommandInvocationHandler$1.call(RemoteGitImpl.java:145)
      12:42:12 - at hudson.remoting.UserRequest.perform(UserRequest.java:121)
      12:42:12 - at hudson.remoting.UserRequest.perform(UserRequest.java:49)
      12:42:12 - at hudson.remoting.Request$2.run(Request.java:324)
      12:42:12 - at hudson.remoting.InterceptingExecutorService$1.call(InterceptingExecutorService.java:68)
      12:42:12 - at java.util.concurrent.FutureTask.run(FutureTask.java:262)
      12:42:12 - at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1145)
      12:42:12 - at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:615)
      12:42:12 - at java.lang.Thread.run(Thread.java:745)
      12:42:12 - at ......remote call to a004999.com(Native Method)
      12:42:12 - at hudson.remoting.Channel.attachCallSiteStackTrace(Channel.java:1356)
      12:42:12 - at hudson.remoting.UserResponse.retrieve(UserRequest.java:221)
      12:42:12 - at hudson.remoting.Channel.call(Channel.java:752)
      12:42:12 - ... 18 more
      12:42:12 - ERROR: Error fetching remote repo 'origin'
      12:42:12 - Recording test results

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              • Assignee:
                Unassigned
                Reporter:
                eshen ellen shen
              • Votes:
                1 Vote for this issue
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                • Created:
                  Updated: