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Bug
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Resolution: Won't Fix
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Major
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None
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jenkins 2.263.1
git-plugin 4.5.2
We are checking out a repository with submodules in a multibranch pipeline using the following script:
checkout([ $class: 'GitSCM', branches: scm.branches, doGenerateSubmoduleConfigurations: true, extensions: scm.extensions + [[$class: 'SubmoduleOption', recursiveSubmodules: true]], userRemoteConfigs: scm.userRemoteConfigs ])
This however fails with the following error:
java.io.NotSerializableException: java.util.HashMap$Values at java.io.ObjectOutputStream.writeObject0(ObjectOutputStream.java:1184) at java.io.ObjectOutputStream.writeArray(ObjectOutputStream.java:1378) at java.io.ObjectOutputStream.writeObject0(ObjectOutputStream.java:1174) at java.io.ObjectOutputStream.defaultWriteFields(ObjectOutputStream.java:1548) at java.io.ObjectOutputStream.writeSerialData(ObjectOutputStream.java:1509) at java.io.ObjectOutputStream.writeOrdinaryObject(ObjectOutputStream.java:1432) at java.io.ObjectOutputStream.writeObject0(ObjectOutputStream.java:1178) at java.io.ObjectOutputStream.writeArray(ObjectOutputStream.java:1378) at java.io.ObjectOutputStream.writeObject0(ObjectOutputStream.java:1174) at java.io.ObjectOutputStream.defaultWriteFields(ObjectOutputStream.java:1548) at java.io.ObjectOutputStream.writeSerialData(ObjectOutputStream.java:1509) at java.io.ObjectOutputStream.writeOrdinaryObject(ObjectOutputStream.java:1432) at java.io.ObjectOutputStream.writeObject0(ObjectOutputStream.java:1178) at java.io.ObjectOutputStream.writeObject(ObjectOutputStream.java:348) at hudson.remoting.UserRequest._serialize(UserRequest.java:263) at hudson.remoting.UserRequest.serialize(UserRequest.java:272) Caused: java.io.IOException: Unable to serialize UserRPCRequest:org.jenkinsci.plugins.gitclient.GitClient.withRepository[org.jenkinsci.plugins.gitclient.RepositoryCallback](44) at hudson.remoting.UserRequest.serialize(UserRequest.java:274) at hudson.remoting.UserRequest.<init>(UserRequest.java:101) at hudson.remoting.Channel.call(Channel.java:996) at hudson.remoting.RemoteInvocationHandler.invoke(RemoteInvocationHandler.java:285) at com.sun.proxy.$Proxy78.withRepository(Unknown Source) at org.jenkinsci.plugins.gitclient.RemoteGitImpl.withRepository(RemoteGitImpl.java:237) at hudson.plugins.git.util.GitUtils.filterTipBranches(GitUtils.java:215) Caused: hudson.plugins.git.GitException: Error computing merge base at hudson.plugins.git.util.GitUtils.filterTipBranches(GitUtils.java:268) at hudson.plugins.git.SubmoduleCombinator.createSubmoduleCombinations(SubmoduleCombinator.java:41) at hudson.plugins.git.extensions.impl.SubmoduleOption.onCheckoutCompleted(SubmoduleOption.java:182) at hudson.plugins.git.GitSCM.checkout(GitSCM.java:1379) at org.jenkinsci.plugins.workflow.steps.scm.SCMStep.checkout(SCMStep.java:125) at org.jenkinsci.plugins.workflow.steps.scm.SCMStep$StepExecutionImpl.run(SCMStep.java:93) at org.jenkinsci.plugins.workflow.steps.scm.SCMStep$StepExecutionImpl.run(SCMStep.java:80) at org.jenkinsci.plugins.workflow.steps.SynchronousNonBlockingStepExecution.lambda$start$0(SynchronousNonBlockingStepExecution.java:47) at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511) at java.util.concurrent.FutureTask.run(FutureTask.java:266) at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149) at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624) at java.lang.Thread.run(Thread.java:748)
Interestingly the error does not occur when the submodules are not checked out or doGenerateSubmoduleConfigurations is set to false.
