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  1. Jenkins
  2. JENKINS-36666

Jenkins startup fails due to cyclic dependency miscalculation

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      Description

      To reproduce in 2.14-SNAPSHOT:

      • start on a new home
      • swat aside the setup wizard
      • install github-branch-source including all dependencies
      • manually upload workflow-scm-step-2.0.hpi (downgrading from the 2.2 installed from the UC)
      • restart

      You will see a warning about cyclic dependencies:

      ... hudson.PluginManager$1$3$2$3 reactOnCycle
      SEVERE: found cycle in plugin dependencies: (root=Plugin:workflow-scm-step, deactivating all involved) Plugin:workflow-scm-step -> Plugin:git -> Plugin:workflow-scm-step
      

      Which looks fine (you need to update workflow-scm-step to solve the conflict) until you realize it is disabling git but not its dependencies. So then you see a lot of extension loading errors, which would normally be just noise:

      ... hudson.ExtensionFinder$GuiceFinder$FaultTolerantScope$1 error
      WARNING: Failed to instantiate Key[type=org.jenkinsci.plugins.github_branch_source.GitHubSCMSource$DescriptorImpl, annotation=[none]]; skipping this component
      com.google.inject.ProvisionException: Guice provision errors:
      
      1) Error injecting constructor, java.lang.NoClassDefFoundError: jenkins/plugins/git/AbstractGitSCMSource
        at org.jenkinsci.plugins.github_branch_source.GitHubSCMSource$DescriptorImpl.<init>(GitHubSCMSource.java:722)
      
      1 error
      	at ...
      	at hudson.ExtensionFinder$GuiceFinder._find(ExtensionFinder.java:386)
      	at hudson.ExtensionFinder$GuiceFinder.find(ExtensionFinder.java:377)
      	at hudson.ClassicPluginStrategy.findComponents(ClassicPluginStrategy.java:471)
      	at hudson.ExtensionList.load(ExtensionList.java:349)
      	at hudson.ExtensionList.ensureLoaded(ExtensionList.java:287)
      	at hudson.ExtensionList.getComponents(ExtensionList.java:167)
      	at hudson.DescriptorExtensionList.load(DescriptorExtensionList.java:185)
      	at hudson.ExtensionList.ensureLoaded(ExtensionList.java:287)
      	at hudson.ExtensionList.iterator(ExtensionList.java:156)
      	at hudson.ExtensionList.get(ExtensionList.java:147)
      	at com.cloudbees.jenkins.GitHubPushTrigger$DescriptorImpl.get(GitHubPushTrigger.java:359)
      	at org.jenkinsci.plugins.github.migration.Migrator.migrate(Migrator.java:40)
      	at org.jenkinsci.plugins.github.GitHubPlugin.postInitialize(GitHubPlugin.java:39)
      	at hudson.PluginManager$2$4$5.run(PluginManager.java:537)
      	at org.jvnet.hudson.reactor.TaskGraphBuilder$TaskImpl.run(TaskGraphBuilder.java:169)
      	at org.jvnet.hudson.reactor.Reactor.runTask(Reactor.java:282)
      	at jenkins.model.Jenkins$7.runTask(Jenkins.java:998)
      	at org.jvnet.hudson.reactor.Reactor$2.run(Reactor.java:210)
      	at org.jvnet.hudson.reactor.Reactor$Node.run(Reactor.java:117)
      	at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)
      	at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)
      	at java.lang.Thread.run(Thread.java:745)
      Caused by: java.lang.NoClassDefFoundError: jenkins/plugins/git/AbstractGitSCMSource
      	at ...
      	at java.lang.Class.getEnclosingClass(Class.java:1277)
      	at hudson.model.Descriptor.<init>(Descriptor.java:270)
      	at jenkins.scm.api.SCMSourceDescriptor.<init>(SCMSourceDescriptor.java:42)
      	at org.jenkinsci.plugins.github_branch_source.GitHubSCMSource$DescriptorImpl.<init>(GitHubSCMSource.java:722)
      	at org.jenkinsci.plugins.github_branch_source.GitHubSCMSource$DescriptorImpl$$FastClassByGuice$$fee958e6.newInstance(<generated>)
      	at ...
      	... 28 more
      Caused by: java.lang.ClassNotFoundException: jenkins.plugins.git.AbstractGitSCMSource
      	at jenkins.util.AntClassLoader.findClassInComponents(AntClassLoader.java:1376)
      	at ...
      ... hudson.ExtensionFinder$GuiceFinder$FaultTolerantScope$1 error
      WARNING: Failed to instantiate Key[type=org.jenkinsci.plugins.github_branch_source.GitHubSCMNavigator$DescriptorImpl, annotation=[none]]; skipping this component
      com.google.inject.ProvisionException: Guice provision errors:
      
      1) Error injecting constructor, java.lang.NoClassDefFoundError: jenkins/plugins/git/AbstractGitSCMSource
        at org.jenkinsci.plugins.github_branch_source.GitHubSCMNavigator$DescriptorImpl.<init>(GitHubSCMNavigator.java:326)
      
      1 error
      	at ...
      

      However after all this you get

      ... hudson.init.impl.InstallUncaughtExceptionHandler$DefaultUncaughtExceptionHandler uncaughtException
      SEVERE: A thread (pool-6-thread-5/40) died unexpectedly due to an uncaught exception, this may leave your Jenkins in a bad way and is usually indicative of a bug in the code.
      java.lang.NoClassDefFoundError: org/jenkinsci/plugins/github_branch_source/GitHubSCMSource
      	at java.lang.Class.getDeclaringClass0(Native Method)
      	at java.lang.Class.getDeclaringClass(Class.java:1235)
      	at java.lang.Class.getEnclosingClass(Class.java:1277)
      	at java.lang.Class.getSimpleBinaryName(Class.java:1443)
      	at java.lang.Class.getSimpleName(Class.java:1309)
      	at hudson.init.TaskMethodFinder.getDisplayNameOf(TaskMethodFinder.java:80)
      	at hudson.init.TaskMethodFinder$TaskImpl.getDisplayName(TaskMethodFinder.java:167)
      	at jenkins.InitReactorRunner$1.onTaskStarted(InitReactorRunner.java:64)
      	at org.jvnet.hudson.reactor.ReactorListener$Aggregator.onTaskStarted(ReactorListener.java:89)
      	at org.jvnet.hudson.reactor.Reactor$2.run(Reactor.java:208)
      	at org.jvnet.hudson.reactor.Reactor$Node.run(Reactor.java:117)
      	at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)
      	at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)
      	at java.lang.Thread.run(Thread.java:745)
      

      and at this point Jenkins startup ends; the UI just says Please wait while Jenkins is restarting... forever.

      These steps to reproduce are somewhat artificial. The original report comes from CloudBees Jenkins Enterprise: after starting 1.642.4.1 and installing subversion from the update center, Jenkins will not start (though in that case the fatal error comes a little later and lacks the "in a bad way" message.

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              • Assignee:
                jglick Jesse Glick
                Reporter:
                jglick Jesse Glick
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                • Created:
                  Updated:
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