When there is an illegal 'break' statement exists, the job fails and finish. However, from Main page, job are not reported as failed/finished but hangs. It consumes the execution slot of the slave and never quit. 

A quick script to reproduce this:

```

node('linux')

```

The output of the execution:

```
‘...’ is offline
Running on ... in /home/ubuntu/workspace/s_devops-deploy-tool-test_master[Pipeline] {[Pipeline] End of PipelineGitHub has been notified of this commit’s build result

java.lang.IllegalStateException: unexpected break statement
at com.cloudbees.groovy.cps.impl.CallEnv.getBreakAddress(CallEnv.java:102)
at com.cloudbees.groovy.cps.impl.ProxyEnv.getBreakAddress(ProxyEnv.java:52)
at com.cloudbees.groovy.cps.impl.ProxyEnv.getBreakAddress(ProxyEnv.java:52)
at com.cloudbees.groovy.cps.impl.BreakBlock.eval(BreakBlock.java:21)
at com.cloudbees.groovy.cps.Next.step(Next.java:83)
at com.cloudbees.groovy.cps.Continuable$1.call(Continuable.java:174)
at com.cloudbees.groovy.cps.Continuable$1.call(Continuable.java:163)
at org.codehaus.groovy.runtime.GroovyCategorySupport$ThreadCategoryInfo.use(GroovyCategorySupport.java:129)
at org.codehaus.groovy.runtime.GroovyCategorySupport.use(GroovyCategorySupport.java:268)
at com.cloudbees.groovy.cps.Continuable.run0(Continuable.java:163)
at org.jenkinsci.plugins.workflow.cps.SandboxContinuable.access$001(SandboxContinuable.java:18)
at org.jenkinsci.plugins.workflow.cps.SandboxContinuable.run0(SandboxContinuable.java:51)
at org.jenkinsci.plugins.workflow.cps.CpsThread.runNextChunk(CpsThread.java:174)
at org.jenkinsci.plugins.workflow.cps.CpsThreadGroup.run(CpsThreadGroup.java:347)
at org.jenkinsci.plugins.workflow.cps.CpsThreadGroup.access$200(CpsThreadGroup.java:93)
at org.jenkinsci.plugins.workflow.cps.CpsThreadGroup$2.call(CpsThreadGroup.java:259)
at org.jenkinsci.plugins.workflow.cps.CpsThreadGroup$2.call(CpsThreadGroup.java:247)
at org.jenkinsci.plugins.workflow.cps.CpsVmExecutorService$2.call(CpsVmExecutorService.java:64)
at java.util.concurrent.FutureTask.run(FutureTask.java:266)
at hudson.remoting.SingleLaneExecutorService$1.run(SingleLaneExecutorService.java:131)
at jenkins.util.ContextResettingExecutorService$1.run(ContextResettingExecutorService.java:28)
at jenkins.security.ImpersonatingExecutorService$1.run(ImpersonatingExecutorService.java:59)
at java.util.concurrent.Executors$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)
Finished: FAILURE
 
When I change the statement `break` to others like `return`, `throw Exception...` or even illegal keywords, things runs as expected. 
Have tried different combinations of plug-ins but it does not seem related.