Unable to run sh with value from element when iterate list of maps

Using Jenkins
,
1

unable to run sh with value from element when iterate list of maps

reproduction code

pipeline {
  agent {
      label 'jenkins-agent'
  }
  options {
      timestamps()
      disableConcurrentBuilds()
      ansiColor('xterm')
      timeout(time: 3, unit: 'HOURS')
      buildDiscarder(logRotator(numToKeepStr:'30',daysToKeepStr: '90',artifactDaysToKeepStr: '30',artifactNumToKeepStr: '20'))
  }
  stages {
    stage("foo") {
      steps {
        script {
            def list_of_maps = ["@ns/packageone":"^3.4.0", "@ns/packagetwo":"1.0.0", "@ns/packagethree":"~2.2.0"]
            for(packageEntry in list_of_maps) {
                def packageName = packageEntry.key
                echo "packageName: ${packageName}"
                def packageVersion = packageEntry.value
                echo "packageVersion: ${packageVersion}"
                
                def packageVersionOutputa = sh(script: "echo $packageName",returnStdout: true).trim()
                def packageVersionOutputb = sh(script: "echo $packageVersion",returnStdout: true).trim()
            }
        }
      }
    }
  }
}

it fails in line: def packageVersionOutputb = sh(script: "echo $packageVersion",returnStdout: true).trim()

error output from console

Started by user myuser
[Pipeline] Start of Pipeline
[Pipeline] node
Agent jenkins-agent-x61j9 is provisioned from template jenkins-agent
Running on jenkins-agent-x61j9 in /home/jenkins/workspace/tasks/tests/pipeline-test
[Pipeline] {
[Pipeline] timestamps
[Pipeline] {
[Pipeline] ansiColor
[Pipeline] {
18:37:52  
[Pipeline] timeout
18:37:52  Timeout set to expire in 3 hr 0 min
[Pipeline] {
[Pipeline] stage
[Pipeline] { (foo)
[Pipeline] script
[Pipeline] {
[Pipeline] echo
18:37:53  packageName: @ns/packageone
[Pipeline] echo
18:37:53  packageVersion: ^3.4.0
[Pipeline] sh
[Pipeline] }
[Pipeline] // script
[Pipeline] }
[Pipeline] // stage
[Pipeline] }
[Pipeline] // timeout
[Pipeline] }
18:37:53  
18:37:53  + echo @ns/packageone
18:37:53  Cannot contact jenkins-agent-x61j9: java.io.IOException: cannot find current thread
[Pipeline] // ansiColor
[Pipeline] }
[Pipeline] // timestamps
[Pipeline] }
[Pipeline] // node
[Pipeline] End of Pipeline
an exception which occurred:
	in field com.cloudbees.groovy.cps.impl.BlockScopeEnv.locals
	in object com.cloudbees.groovy.cps.impl.LoopBlockScopeEnv@9c17da7
	in field com.cloudbees.groovy.cps.impl.ProxyEnv.parent
	in object com.cloudbees.groovy.cps.impl.BlockScopeEnv@50fabc0b
	in field com.cloudbees.groovy.cps.impl.ProxyEnv.parent
	in object com.cloudbees.groovy.cps.impl.BlockScopeEnv@743cc0de
	in field com.cloudbees.groovy.cps.impl.CallEnv.caller
	in object com.cloudbees.groovy.cps.impl.FunctionCallEnv@1575ba54
	in field com.cloudbees.groovy.cps.Continuable.e
	in object org.jenkinsci.plugins.workflow.cps.SandboxContinuable@1b18ed84
	in field org.jenkinsci.plugins.workflow.cps.CpsThread.program
	in object org.jenkinsci.plugins.workflow.cps.CpsThread@86962fd
	in field org.jenkinsci.plugins.workflow.cps.CpsThreadGroup.threads
	in object org.jenkinsci.plugins.workflow.cps.CpsThreadGroup@17644edf
	in object org.jenkinsci.plugins.workflow.cps.CpsThreadGroup@17644edf
Also:   org.jenkinsci.plugins.workflow.actions.ErrorAction$ErrorId: 6ed83c5b-164d-4c75-802b-9369e24d1b1d
Caused: java.io.NotSerializableException: java.util.LinkedHashMap$Entry
	at PluginClassLoader for workflow-support//org.jboss.marshalling.river.RiverMarshaller.doWriteObject(RiverMarshaller.java:278)
	at PluginClassLoader for workflow-support//org.jboss.marshalling.river.BlockMarshaller.doWriteObject(BlockMarshaller.java:65)
	at PluginClassLoader for workflow-support//org.jboss.marshalling.river.BlockMarshaller.writeObject(BlockMarshaller.java:56)
	at PluginClassLoader for workflow-support//org.jboss.marshalling.MarshallerObjectOutputStream.writeObjectOverride(MarshallerObjectOutputStream.java:50)
	at PluginClassLoader for workflow-support//org.jboss.marshalling.river.RiverObjectOutputStream.writeObjectOverride(RiverObjectOutputStream.java:179)
	at java.base/java.io.ObjectOutputStream.writeObject(Unknown Source)
	at java.base/java.util.HashMap.internalWriteEntries(Unknown Source)
	at java.base/java.util.HashMap.writeObject(Unknown Source)
	at PluginClassLoader for workflow-support//org.jboss.marshalling.reflect.SerMethods.callWriteObject(SerMethods.java:69)
	at PluginClassLoader for workflow-support//org.jboss.marshalling.reflect.SerializableClass.callWriteObject(SerializableClass.java:231)
	at PluginClassLoader for workflow-support//org.jboss.marshalling.river.RiverMarshaller.doWriteSerializableObject(RiverMarshaller.java:1128)
	at PluginClassLoader for workflow-support//org.jboss.marshalling.river.RiverMarshaller.doWriteObject(RiverMarshaller.java:271)
	at PluginClassLoader for workflow-support//org.jboss.marshalling.river.RiverMarshaller.doWriteFields(RiverMarshaller.java:1182)
	at PluginClassLoader for workflow-support//org.jboss.marshalling.river.RiverMarshaller.doWriteSerializableObject(RiverMarshaller.java:1140)
	at PluginClassLoader for workflow-support//org.jboss.marshalling.river.RiverMarshaller.doWriteSerializableObject(RiverMarshaller.java:1119)
	at PluginClassLoader for workflow-support//org.jboss.marshalling.river.RiverMarshaller.doWriteObject(RiverMarshaller.java:271)
	at PluginClassLoader for workflow-support//org.jboss.marshalling.river.RiverMarshaller.doWriteFields(RiverMarshaller.java:1182)
	at PluginClassLoader for workflow-support//org.jboss.marshalling.river.RiverMarshaller.doWriteSerializableObject(RiverMarshaller.java:1140)
	at PluginClassLoader for workflow-support//org.jboss.marshalling.river.RiverMarshaller.doWriteSerializableObject(RiverMarshaller.java:1119)
	at PluginClassLoader for workflow-support//org.jboss.marshalling.river.RiverMarshaller.doWriteObject(RiverMarshaller.java:271)
	at PluginClassLoader for workflow-support//org.jboss.marshalling.river.RiverMarshaller.doWriteFields(RiverMarshaller.java:1182)
	at PluginClassLoader for workflow-support//org.jboss.marshalling.river.RiverMarshaller.doWriteSerializableObject(RiverMarshaller.java:1140)
	at PluginClassLoader for workflow-support//org.jboss.marshalling.river.RiverMarshaller.doWriteSerializableObject(RiverMarshaller.java:1119)
	at PluginClassLoader for workflow-support//org.jboss.marshalling.river.RiverMarshaller.doWriteObject(RiverMarshaller.java:271)
	at PluginClassLoader for workflow-support//org.jboss.marshalling.river.RiverMarshaller.doWriteFields(RiverMarshaller.java:1182)
	at PluginClassLoader for workflow-support//org.jboss.marshalling.river.RiverMarshaller.doWriteSerializableObject(RiverMarshaller.java:1140)
	at PluginClassLoader for workflow-support//org.jboss.marshalling.river.RiverMarshaller.doWriteSerializableObject(RiverMarshaller.java:1119)
	at PluginClassLoader for workflow-support//org.jboss.marshalling.river.RiverMarshaller.doWriteObject(RiverMarshaller.java:271)
	at PluginClassLoader for workflow-support//org.jboss.marshalling.river.RiverMarshaller.doWriteFields(RiverMarshaller.java:1182)
	at PluginClassLoader for workflow-support//org.jboss.marshalling.river.RiverMarshaller.doWriteSerializableObject(RiverMarshaller.java:1140)
	at PluginClassLoader for workflow-support//org.jboss.marshalling.river.RiverMarshaller.doWriteSerializableObject(RiverMarshaller.java:1119)
	at PluginClassLoader for workflow-support//org.jboss.marshalling.river.RiverMarshaller.doWriteObject(RiverMarshaller.java:271)
	at PluginClassLoader for workflow-support//org.jboss.marshalling.river.RiverMarshaller.doWriteFields(RiverMarshaller.java:1182)
	at PluginClassLoader for workflow-support//org.jboss.marshalling.river.RiverMarshaller.doWriteSerializableObject(RiverMarshaller.java:1140)
	at PluginClassLoader for workflow-support//org.jboss.marshalling.river.RiverMarshaller.doWriteObject(RiverMarshaller.java:271)
	at PluginClassLoader for workflow-support//org.jboss.marshalling.river.BlockMarshaller.doWriteObject(BlockMarshaller.java:65)
	at PluginClassLoader for workflow-support//org.jboss.marshalling.river.BlockMarshaller.writeObject(BlockMarshaller.java:56)
	at PluginClassLoader for workflow-support//org.jboss.marshalling.MarshallerObjectOutputStream.writeObjectOverride(MarshallerObjectOutputStream.java:50)
	at PluginClassLoader for workflow-support//org.jboss.marshalling.river.RiverObjectOutputStream.writeObjectOverride(RiverObjectOutputStream.java:179)
	at java.base/java.io.ObjectOutputStream.writeObject(Unknown Source)
	at java.base/java.util.HashMap.internalWriteEntries(Unknown Source)
	at java.base/java.util.HashMap.writeObject(Unknown Source)
	at PluginClassLoader for workflow-support//org.jboss.marshalling.reflect.SerMethods.callWriteObject(SerMethods.java:69)
	at PluginClassLoader for workflow-support//org.jboss.marshalling.reflect.SerializableClass.callWriteObject(SerializableClass.java:231)
	at PluginClassLoader for workflow-support//org.jboss.marshalling.river.RiverMarshaller.doWriteSerializableObject(RiverMarshaller.java:1128)
	at PluginClassLoader for workflow-support//org.jboss.marshalling.river.RiverMarshaller.doWriteObject(RiverMarshaller.java:271)
	at PluginClassLoader for workflow-support//org.jboss.marshalling.river.RiverMarshaller.doWriteFields(RiverMarshaller.java:1182)
	at PluginClassLoader for workflow-support//org.jboss.marshalling.river.RiverMarshaller.doWriteSerializableObject(RiverMarshaller.java:1140)
	at PluginClassLoader for workflow-support//org.jboss.marshalling.river.RiverMarshaller.doWriteObject(RiverMarshaller.java:271)
	at PluginClassLoader for workflow-support//org.jboss.marshalling.AbstractObjectOutput.writeObject(AbstractObjectOutput.java:58)
	at PluginClassLoader for workflow-support//org.jboss.marshalling.AbstractMarshaller.writeObject(AbstractMarshaller.java:116)
	at PluginClassLoader for workflow-support//org.jenkinsci.plugins.workflow.support.pickles.serialization.RiverWriter.lambda$writeObject$1(RiverWriter.java:147)
	at PluginClassLoader for script-security//org.jenkinsci.plugins.scriptsecurity.sandbox.groovy.GroovySandbox.runInSandbox(GroovySandbox.java:331)
	at PluginClassLoader for workflow-support//org.jenkinsci.plugins.workflow.support.pickles.serialization.RiverWriter.writeObject(RiverWriter.java:146)
	at PluginClassLoader for workflow-cps//org.jenkinsci.plugins.workflow.cps.CpsThreadGroup.saveProgram(CpsThreadGroup.java:589)
	at PluginClassLoader for workflow-cps//org.jenkinsci.plugins.workflow.cps.CpsThreadGroup.saveProgram(CpsThreadGroup.java:566)
	at PluginClassLoader for workflow-cps//org.jenkinsci.plugins.workflow.cps.CpsThreadGroup.saveProgramIfPossible(CpsThreadGroup.java:549)
	at PluginClassLoader for workflow-cps//org.jenkinsci.plugins.workflow.cps.CpsThreadGroup.run(CpsThreadGroup.java:473)
	at PluginClassLoader for workflow-cps//org.jenkinsci.plugins.workflow.cps.CpsThreadGroup$2.call(CpsThreadGroup.java:330)
	at PluginClassLoader for workflow-cps//org.jenkinsci.plugins.workflow.cps.CpsThreadGroup$2.call(CpsThreadGroup.java:294)
	at PluginClassLoader for workflow-cps//org.jenkinsci.plugins.workflow.cps.CpsVmExecutorService.lambda$wrap$4(CpsVmExecutorService.java:140)
	at java.base/java.util.concurrent.FutureTask.run(Unknown Source)
	at hudson.remoting.SingleLaneExecutorService$1.run(SingleLaneExecutorService.java:139)
	at jenkins.util.ContextResettingExecutorService$1.run(ContextResettingExecutorService.java:28)
	at jenkins.security.ImpersonatingExecutorService$1.run(ImpersonatingExecutorService.java:68)
	at jenkins.util.ErrorLoggingExecutorService.lambda$wrap$0(ErrorLoggingExecutorService.java:51)
	at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Unknown Source)
	at java.base/java.util.concurrent.FutureTask.run(Unknown Source)
	at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(Unknown Source)
	at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(Unknown Source)
	at PluginClassLoader for workflow-cps//org.jenkinsci.plugins.workflow.cps.CpsVmExecutorService$1.call(CpsVmExecutorService.java:53)
	at PluginClassLoader for workflow-cps//org.jenkinsci.plugins.workflow.cps.CpsVmExecutorService$1.call(CpsVmExecutorService.java:50)
	at org.codehaus.groovy.runtime.GroovyCategorySupport$ThreadCategoryInfo.use(GroovyCategorySupport.java:136)
	at org.codehaus.groovy.runtime.GroovyCategorySupport.use(GroovyCategorySupport.java:275)
	at PluginClassLoader for workflow-cps//org.jenkinsci.plugins.workflow.cps.CpsVmExecutorService.lambda$categoryThreadFactory$0(CpsVmExecutorService.java:50)
	at java.base/java.lang.Thread.run(Unknown Source)
Finished: FAILURE

Any idea what Am I doing wrong?

I’ve also opened a new issue: https://issues.jenkins.io/browse/JENKINS-75062?orderby=created+DESC%2C+priority+DESC%2C+updated+DESC

2

use list_of_maps.keySet() to loop over the keys in the map and use a closure

list_of_maps.keySet().each{ key ->
  def packageName = key
  def packageVersion = list_of_maps[key]
  ...
}
1 Like
3

since Jenkins each loop doesn’t support break or continue and following @mawinter69 suggestion, I have changed my code to keep the for loop to something like this:

pipeline {
  ...
  stages {
    stage("foo") {
      steps {
        script {
            def list_of_maps = ["@ns/packageone":"^3.4.0", "@ns/packagetwo":"1.0.0", "@ns/packagethree":"~2.2.0"]
            for(packageName in list_of_maps.keySet()) {
                // def packageName = packageName
                echo "packageName: ${packageName}"
                def packageVersion = list_of_maps[packageName]
                echo "packageVersion: ${packageVersion}"
                
                def packageVersionOutputa = sh(script: "echo $packageName",returnStdout: true).trim()
                def packageVersionOutputb = sh(script: "echo $packageVersion",returnStdout: true).trim()
                def packageVersionOutputc = sh(script: "echo \"${packageName}@${packageVersion}\"",returnStdout: true).trim()
            }
        }
      }
    }
  }
}

now it works like a charm :tada: