即使使用@NonCPS，Jenkins管道java.io.NotSerializableException java.util.regex.Matcher也会出错

时间：2016-11-06 21:09:25

标签： jenkins jenkins-pipeline

我在@NonCPS函数前面使用Jenkinsfile执行正则表达式匹配，即使使用java.io.NotSerializableException java.util.regex.Matcher注释，我仍然会收到@NonCPS错误。

注意，它多次调用该函数，只有在实际匹配时才会发生异常。

这是我的代码：

@NonCPS
def extractEndTime(logLine) {
    def MY_REGEX = /.*(20[0-9]{2}-[0-9]{2}-[0-9]{2}).([0-9]{2}:[0-9]{2}:[0-9]{2}).*\"\w+\"\sthe text\s(\w+)\./
    m = (logLine =~ TEST_LOGLINE_END_REGEX)
    if (m.count) {
        return [m[1],m[2],m[3]]
    } else {
        return null
    }
}

进行jenkins构建时的输出：

GitHub has been notified of this commit’s build result
java.io.NotSerializableException: java.util.regex.Matcher
    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:1354)
    at sun.reflect.GeneratedMethodAccessor116.invoke(Unknown Source)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
    at java.lang.reflect.Method.invoke(Method.java:497)
    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.GeneratedMethodAccessor145.invoke(Unknown Source)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
    at java.lang.reflect.Method.invoke(Method.java:497)
    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:1777)
    at java.util.HashMap.writeObject(HashMap.java:1354)
    at sun.reflect.GeneratedMethodAccessor116.invoke(Unknown Source)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
    at java.lang.reflect.Method.invoke(Method.java:497)
    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:433)
    at org.jenkinsci.plugins.workflow.cps.CpsThreadGroup.saveProgram(CpsThreadGroup.java:412)
    at org.jenkinsci.plugins.workflow.cps.CpsThreadGroup.run(CpsThreadGroup.java:357)
    at org.jenkinsci.plugins.workflow.cps.CpsThreadGroup.access$100(CpsThreadGroup.java:78)
    at org.jenkinsci.plugins.workflow.cps.CpsThreadGroup$2.call(CpsThreadGroup.java:236)
    at org.jenkinsci.plugins.workflow.cps.CpsThreadGroup$2.call(CpsThreadGroup.java:224)
    at org.jenkinsci.plugins.workflow.cps.CpsVmExecutorService$2.call(CpsVmExecutorService.java:63)
    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)
Caused by: an exception which occurred:
    in field delegate
    in field closures
    in object org.jenkinsci.plugins.workflow.cps.CpsThreadGroup@42b37962
Finished: FAILURE

4 个答案:

答案 0 :(得分：26)

可能由于def变量范围。 尝试使用def m = (logLine =~ TEST_LOGLINE_END_REGEX) 限制它，如下所示：

def

如果没有/W4，则会在全局脚本绑定中创建变量，因此在退出方法后仍然存在。

答案 1 :(得分：15)

Jenkins要求所有变量都是可序列化的，因为在服务器重启等中断的情况下，管道状态会定期保存到磁盘。此功能允许管道维持其状态，并在服务器重新启动后继续。 Matcher类型的变量不可序列化，需要开发人员进行一些额外的工作。

  

来自jenkinsci/pipeline-plugin Serializing Local Variables：

     

然而，最安全的方法是隔离非可序列化状态的使用   在标有@NonCPS注释的方法中。这样的方法会   被Pipeline引擎视为“native”及其局部变量   从来没有救过

提供的代码示例：

@NonCPS
def version(text) {
  def matcher = text =~ '<version>(.+)</version>'
  matcher ? matcher[0][1] : null
}

支持此功能的其他资料可以在Pipeline Groovy Plugin Technical Design找到，在这里他们讨论了标有@NonCPS的方法的更多技术细节和行为。

  

管道脚本可以使用注释标记指定的方法   @NonCPS。然后正常编译它们（沙盒安全性除外）   检查），所以表现得很像Java中的“二进制”方法   平台，Groovy运行时或Jenkins核心或插件代码。 @NonCPS   方法可以安全地使用非Serializable对象作为局部变量，   虽然他们不应该接受不可序列化的参数或返回或   存储不可序列化的值。你可能不会定期打电话   来自@NonCPS方法的（CPS转换的）方法或管道步骤，   所以它们最好用于在通过之前执行一些计算   回到主脚本的摘要。特别注意@Overrides   二进制类中定义的方法，例如Object.toString（），   通常应该标记为@NonCPS，因为它通常是二进制的   代码叫他们。

请参阅：Serializing Local Variables 和Pipeline Groovy Plugin Technical Design

答案 2 :(得分：3)

为了清楚起见，以下内容对我有用。

开发人员的额外工作，例如，请参阅下面的代码。

my.Parameter不可序列化

所以我创建了一个方法，没有def并注释它@NonCPS并从节点块调用它

  node('MySys') {
    echo 'hello'
    avoidCPS()
    echo 'finished'
  }

  @NonCPS
  avoidCPS () {
    // use my.Parameter here
    my.Parameter p = new my.Parameter()
    ... do some more ...
  }

答案 3 :(得分：0)

以下作品似乎是詹金斯虫子

def m = (it =~ /abcd/)**[0]**

但随后出现了java.io.NotSerializableException 

def m = (it =~ /abcd/)
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