[JIRA] (JENKINS-57461) Pipeline checkout stage fails with "java.io.IOException: Unable to serialize"

[markusschult...@gmail.com (JIRA)]

Title: Message Title

Markus Schulte created an issue   Jenkins / JENKINS-57461 Pipeline checkout stage fails with "java.io.IOException: Unable to serialize" Issue Type: Bug Assignee: Mark Waite Components: git-client-plugin Created: 2019-05-14 15:07 Environment: Jenkins ver. 2.164.3 with OpenJDK "11.0.3+1-Debian-1bpo91" git-client-plugin v2.7.7 and v3.0.0-beta9 Jenkins slave running OpenJDK11 Priority: Minor Reporter: Markus Schulte Hi,   I have an automated Jenkins setup. While provisioning, I add as part of init.groovy.d an SSH key as a new SSH key as credentials to the Jenkins master (new BasicSSHUserPrivateKey(..., new BasicSSHUserPrivateKey.FileOnMasterPrivateKeySource(sshKeyPath))). Furthermore, I add a job using this credentials, and I setup Jenkins slaves automatically.   When running my job the first time (which will run on a slave), I get the following exception java.io.NotSerializableException: com.cloudbees.jenkins.plugins.sshcredentials.impl.BasicSSHUserPrivateKey$FileOnMasterPrivateKeySource at java.base/java.io.ObjectOutputStream.writeObject0(ObjectOutputStream.java:1185) at java.base/java.io.ObjectOutputStream.defaultWriteFields(ObjectOutputStream.java:1553) at java.base/java.io.ObjectOutputStream.writeSerialData(ObjectOutputStream.java:1510) at java.base/java.io.ObjectOutputStream.writeOrdinaryObject(ObjectOutputStream.java:1433) at java.base/java.io.ObjectOutputStream.writeObject0(ObjectOutputStream.java:1179) at java.base/java.io.ObjectOutputStream.writeArray(ObjectOutputStream.java:1379) at java.base/java.io.ObjectOutputStream.writeObject0(ObjectOutputStream.java:1175) at java.base/java.io.ObjectOutputStream.defaultWriteFields(ObjectOutputStream.java:1553) at java.base/java.io.ObjectOutputStream.writeSerialData(ObjectOutputStream.java:1510) at java.base/java.io.ObjectOutputStream.writeOrdinaryObject(ObjectOutputStream.java:1433) at java.base/java.io.ObjectOutputStream.writeObject0(ObjectOutputStream.java:1179) at java.base/java.io.ObjectOutputStream.writeObject(ObjectOutputStream.java:349) at hudson.remoting.UserRequest._serialize(UserRequest.java:264) at hudson.remoting.UserRequest.serialize(UserRequest.java:273) Caused: java.io.IOException: Unable to serialize UserRPCRequest:org.jenkinsci.plugins.gitclient.GitClient.addCredentials[java.lang.String,com.cloudbees.plugins.credentials.common.StandardCredentials](25) at hudson.remoting.UserRequest.serialize(UserRequest.java:275) at hudson.remoting.UserRequest.<init>(UserRequest.java:101) at hudson.remoting.Channel.call(Channel.java:955) at hudson.remoting.RemoteInvocationHandler.invoke(RemoteInvocationHandler.java:283) Caused: hudson.remoting.RemotingSystemException at hudson.remoting.RemoteInvocationHandler.invoke(RemoteInvocationHandler.java:299) at com.sun.proxy.$Proxy82.addCredentials(Unknown Source) at org.jenkinsci.plugins.gitclient.RemoteGitImpl.addCredentials(RemoteGitImpl.java:200) at hudson.plugins.git.GitSCM.createClient(GitSCM.java:845) at hudson.plugins.git.GitSCM.createClient(GitSCM.java:813) at hudson.plugins.git.GitSCM.checkout(GitSCM.java:1186) at org.jenkinsci.plugins.workflow.steps.scm.SCMStep.checkout(SCMStep.java:120) at org.jenkinsci.plugins.workflow.steps.scm.SCMStep$StepExecutionImpl.run(SCMStep.java:90) at org.jenkinsci.plugins.workflow.steps.scm.SCMStep$StepExecutionImpl.run(SCMStep.java:77) at org.jenkinsci.plugins.workflow.steps.SynchronousNonBlockingStepExecution.lambda$start$0(SynchronousNonBlockingStepExecution.java:47) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:515) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1128) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:628) at java.base/java.lang.Thread.run(Thread.java:834   Reloading or restarting Jenkins solves the problem. Add Comment   This message was sent by Atlassian Jira (v7.11.2#711002-sha1:fdc329d) -- You received this message because you are subscribed to the Google Groups "Jenkins Issues" group. To unsubscribe from this group and stop receiving emails from it, send an email to jenkinsci-issues+unsubscr...@googlegroups.com. To view this discussion on the web visit https://groups.google.com/d/msgid/jenkinsci-issues/JIRA.199321.1557846431000.482.1557846480321%40Atlassian.JIRA. For more options, visit https://groups.google.com/d/optout.