def branch(name) {
  return {
    node {
      sh "sleep 30 && head -c 52428800 /dev/urandom > ${name}.bin"
      stash includes: "${name}.bin", name: "${name}"
    }
  }
}


stage "Thinking"

for (i = 0; i < 5; i++) {
  sleep time: 250, unit: 'MILLISECONDS'
  echo "Thinking $i"
}

stage "Working"

def branches = [:]
branches["b1"] = branch("b1")
branches["b2"] = branch("b2")
branches["b3"] = branch("b3")

parallel branches

stage "Resting"

for (i = 0; i < 5; i++) {
  sleep time: 150, unit: 'MILLISECONDS'
  echo "Resting $i"
}

Started
[Pipeline] stage (Thinking)
Entering stage Thinking
Proceeding
[Pipeline] sleep
Sleeping for 0.25 sec
[Pipeline] echo
Thinking 0
[Pipeline] sleep
Sleeping for 0.25 sec
[Pipeline] echo
Thinking 1
[Pipeline] sleep
Sleeping for 0.25 sec
[Pipeline] echo
Thinking 2
[Pipeline] sleep
Sleeping for 0.25 sec
[Pipeline] echo
Thinking 3
[Pipeline] sleep
Sleeping for 0.25 sec
[Pipeline] echo
Thinking 4
[Pipeline] stage (Working)
Entering stage Working
Proceeding
[Pipeline] parallel
[Pipeline] [b1] { (Branch: b1)
[Pipeline] [b2] { (Branch: b2)
[Pipeline] [b3] { (Branch: b3)
[Pipeline] [b1] node
[Pipeline] [b2] node
[Pipeline] [b3] node
[b1] Still waiting to schedule task
[b1] Waiting for next available executor
[b2] Still waiting to schedule task
[b2] Waiting for next available executor
[b3] Still waiting to schedule task
[b3] Waiting for next available executor
[b1] Running on node-10.0.0.58 in /home/ec2-user/workspace/Pipeline@4
[Pipeline] [b1] {
[Pipeline] [b1] sh
[b1] [Pipeline@4] Running shell script
[b1] + sleep 30
[b2] Running on node-10.0.0.61 in /home/ec2-user/workspace/Pipeline@3
[Pipeline] [b2] {
[Pipeline] [b2] sh
[b2] [Pipeline@3] Running shell script
[b2] + sleep 30
[b1] + head -c 52428800 /dev/urandom
[Pipeline] [b1] stash
[b2] + head -c 52428800 /dev/urandom
[Pipeline] [b2] stash
[b1] Stashed 1 file(s)
[Pipeline] }
[Pipeline] // node
[Pipeline] }
[b3] Running on EC2_CJOC (i-0695a7fdd8011c959) in /home/ec2-user/workspace/Pipeline@2
[Pipeline] [b3] {
[Pipeline] [b3] sh
[b3] [Pipeline@2] Running shell script
[b3] + sleep 30
[b2] Stashed 1 file(s)
[Pipeline] }
[Pipeline] // node
[Pipeline] }
[b3] + head -c 52428800 /dev/urandom
[Pipeline] [b3] stash
[Pipeline] }
[Pipeline] // node
[Pipeline] }
Failed in branch b3
[Pipeline] // parallel
[Pipeline] End of Pipeline
java.io.IOException: remote file operation failed: /home/ec2-user/workspace/Pipeline@2 at hudson.remoting.Channel@5f30d359:EC2_CJOC (i-0695a7fdd8011c959): java.io.IOException: This archives contains unclosed entries.
    at hudson.FilePath.act(FilePath.java:1014)
    at hudson.FilePath.act(FilePath.java:996)
    at hudson.FilePath.archive(FilePath.java:459)
    at org.jenkinsci.plugins.workflow.flow.StashManager.stash(StashManager.java:90)
    at org.jenkinsci.plugins.workflow.support.steps.stash.StashStep$Execution.run(StashStep.java:95)
    at org.jenkinsci.plugins.workflow.support.steps.stash.StashStep$Execution.run(StashStep.java:85)
    at org.jenkinsci.plugins.workflow.steps.AbstractSynchronousNonBlockingStepExecution$1$1.call(AbstractSynchronousNonBlockingStepExecution.java:52)
    at hudson.security.ACL.impersonate(ACL.java:213)
    at org.jenkinsci.plugins.workflow.steps.AbstractSynchronousNonBlockingStepExecution$1.run(AbstractSynchronousNonBlockingStepExecution.java:49)
    at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511)
    at java.util.concurrent.FutureTask.run(FutureTask.java:266)
    at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)
    at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)
    at java.lang.Thread.run(Thread.java:745)
Caused by: java.io.IOException: This archives contains unclosed entries.
    at org.apache.commons.compress.archivers.tar.TarArchiveOutputStream.finish(TarArchiveOutputStream.java:225)
    at org.apache.commons.compress.archivers.tar.TarArchiveOutputStream.close(TarArchiveOutputStream.java:241)
    at hudson.util.io.TarArchiver.close(TarArchiver.java:111)
    at hudson.FilePath$1.invoke(FilePath.java:465)
    at hudson.FilePath$1.invoke(FilePath.java:459)
    at hudson.FilePath$FileCallableWrapper.call(FilePath.java:2772)
    at hudson.remoting.UserRequest.perform(UserRequest.java:153)
    at hudson.remoting.UserRequest.perform(UserRequest.java:50)
    at hudson.remoting.Request$2.run(Request.java:332)
    at hudson.remoting.InterceptingExecutorService$1.call(InterceptingExecutorService.java:68)
    at java.util.concurrent.FutureTask.run(FutureTask.java:262)
    at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1145)
    at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:615)
    at java.lang.Thread.run(Thread.java:745)
    at ......remote call to EC2_CJOC (i-0695a7fdd8011c959)(Native Method)
    at hudson.remoting.Channel.attachCallSiteStackTrace(Channel.java:1416)
    at hudson.remoting.UserResponse.retrieve(UserRequest.java:253)
    at hudson.remoting.Channel.call(Channel.java:781)
    at hudson.FilePath.act(FilePath.java:1007)
    ... 13 more
Finished: FAILURE