NotSerializableException在詹金斯DSL

Question

使用路徑時，當我在Groovy中以下內容：

blub = Paths.get(pwd() + "/my/path") 
echo blub.toString() 

它打印

/jenkins/my/path 

就好了。

但之後，我得到以下異常：

java.io.NotSerializableException: sun.nio.fs.UnixPath 
at org.jboss.marshalling.river.RiverMarshaller.doWriteObject(RiverMarshaller.java:860) 
at org.jboss.marshalling.river.BlockMarshaller.doWriteObject(BlockMarshaller.java:65) 
at org.jboss.marshalling.river.BlockMarshaller.writeObject(BlockMarshaller.java:56) 
at org.jboss.marshalling.MarshallerObjectOutputStream.writeObjectOverride(MarshallerObjectOutputStream.java:50) 
at org.jboss.marshalling.river.RiverObjectOutputStream.writeObjectOverride(RiverObjectOutputStream.java:179) 
at java.io.ObjectOutputStream.writeObject(ObjectOutputStream.java:344) 
at java.util.LinkedHashMap.internalWriteEntries(LinkedHashMap.java:333) 
at java.util.HashMap.writeObject(HashMap.java:1362) 
at sun.reflect.GeneratedMethodAccessor87.invoke(Unknown Source) 
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) 
at java.lang.reflect.Method.invoke(Method.java:498) 
at org.jboss.marshalling.reflect.SerializableClass.callWriteObject(SerializableClass.java:271) 
at org.jboss.marshalling.river.RiverMarshaller.doWriteSerializableObject(RiverMarshaller.java:976) 
at org.jboss.marshalling.river.RiverMarshaller.doWriteSerializableObject(RiverMarshaller.java:967) 
at org.jboss.marshalling.river.RiverMarshaller.doWriteObject(RiverMarshaller.java:854) 
at org.jboss.marshalling.river.BlockMarshaller.doWriteObject(BlockMarshaller.java:65) 
at org.jboss.marshalling.river.BlockMarshaller.writeObject(BlockMarshaller.java:56) 
at org.jboss.marshalling.MarshallerObjectOutputStream.writeObjectOverride(MarshallerObjectOutputStream.java:50) 
at org.jboss.marshalling.river.RiverObjectOutputStream.writeObjectOverride(RiverObjectOutputStream.java:179) 
at java.io.ObjectOutputStream.writeObject(ObjectOutputStream.java:344) 
at com.cloudbees.groovy.cps.SerializableScript.writeObject(SerializableScript.java:26) 
at sun.reflect.GeneratedMethodAccessor235.invoke(Unknown Source) 
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) 
at java.lang.reflect.Method.invoke(Method.java:498) 
at org.jboss.marshalling.reflect.SerializableClass.callWriteObject(SerializableClass.java:271) 
at org.jboss.marshalling.river.RiverMarshaller.doWriteSerializableObject(RiverMarshaller.java:976) 
at org.jboss.marshalling.river.RiverMarshaller.doWriteSerializableObject(RiverMarshaller.java:967) 
at org.jboss.marshalling.river.RiverMarshaller.doWriteSerializableObject(RiverMarshaller.java:967) 
at org.jboss.marshalling.river.RiverMarshaller.doWriteObject(RiverMarshaller.java:854) 
at org.jboss.marshalling.river.RiverMarshaller.doWriteFields(RiverMarshaller.java:1032) 
at org.jboss.marshalling.river.RiverMarshaller.doWriteSerializableObject(RiverMarshaller.java:988) 
at org.jboss.marshalling.river.RiverMarshaller.doWriteSerializableObject(RiverMarshaller.java:967) 
at org.jboss.marshalling.river.RiverMarshaller.doWriteSerializableObject(RiverMarshaller.java:967) 
at org.jboss.marshalling.river.RiverMarshaller.doWriteObject(RiverMarshaller.java:854) 
at org.jboss.marshalling.river.BlockMarshaller.doWriteObject(BlockMarshaller.java:65) 
at org.jboss.marshalling.river.BlockMarshaller.writeObject(BlockMarshaller.java:56) 
at org.jboss.marshalling.MarshallerObjectOutputStream.writeObjectOverride(MarshallerObjectOutputStream.java:50) 
at org.jboss.marshalling.river.RiverObjectOutputStream.writeObjectOverride(RiverObjectOutputStream.java:179) 
at java.io.ObjectOutputStream.writeObject(ObjectOutputStream.java:344) 
at java.util.HashMap.internalWriteEntries(HashMap.java:1785) 
at java.util.HashMap.writeObject(HashMap.java:1362) 
at sun.reflect.GeneratedMethodAccessor87.invoke(Unknown Source) 
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) 
at java.lang.reflect.Method.invoke(Method.java:498) 
at org.jboss.marshalling.reflect.SerializableClass.callWriteObject(SerializableClass.java:271) 
at org.jboss.marshalling.river.RiverMarshaller.doWriteSerializableObject(RiverMarshaller.java:976) 
at org.jboss.marshalling.river.RiverMarshaller.doWriteObject(RiverMarshaller.java:854) 
at org.jboss.marshalling.river.RiverMarshaller.doWriteFields(RiverMarshaller.java:1032) 
at org.jboss.marshalling.river.RiverMarshaller.doWriteSerializableObject(RiverMarshaller.java:988) 
at org.jboss.marshalling.river.RiverMarshaller.doWriteObject(RiverMarshaller.java:854) 
at org.jboss.marshalling.AbstractObjectOutput.writeObject(AbstractObjectOutput.java:58) 
at org.jboss.marshalling.AbstractMarshaller.writeObject(AbstractMarshaller.java:111) 
at org.jenkinsci.plugins.workflow.support.pickles.serialization.RiverWriter.writeObject(RiverWriter.java:132) 
at org.jenkinsci.plugins.workflow.cps.CpsThreadGroup.saveProgram(CpsThreadGroup.java:452) 
at org.jenkinsci.plugins.workflow.cps.CpsThreadGroup.saveProgram(CpsThreadGroup.java:427) 
at org.jenkinsci.plugins.workflow.cps.CpsThreadGroup.saveProgramIfPossible(CpsThreadGroup.java:415) 
at org.jenkinsci.plugins.workflow.cps.CpsThreadGroup.run(CpsThreadGroup.java:360) 
at org.jenkinsci.plugins.workflow.cps.CpsThreadGroup.access$100(CpsThreadGroup.java:80) 
at org.jenkinsci.plugins.workflow.cps.CpsThreadGroup$2.call(CpsThreadGroup.java:240) 
at org.jenkinsci.plugins.workflow.cps.CpsThreadGroup$2.call(CpsThreadGroup.java:228) 
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:112) 
at jenkins.util.ContextResettingExecutorService$1.run(ContextResettingExecutorService.java:28) 
at java.util.concurrent.Executors$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) 

有人可以是有意義的，爲什麼它的工作原理，但還是失敗了呢？

Answer 1

你必須在包裝方法的路徑操作標記NonCPS：

@com.cloudbees.groovy.cps.NonCPS 
def test(String value) { 
    // All Path operations here 
    Paths.get(value) 

這裏閱讀血淋淋的細節：https://github.com/jenkinsci/workflow-cps-plugin/#technical-design