Getting "java.io.NotSerializableException" exception in Jenkins pipeline, groovy.

[Ganesh Kumbhar]

Hello All,

I am new to Jenkins pipeline and recently started to use it for my project build.

So, from Jenkins file I am calling a method from other .groovy file which is simple script having some functions defined and in those functions I am creating antbuilder object -> "@Field AntBuilder antBuilder = new AntBuilder()"

But the problem is, I am not able to call any ant targets using antbuilder object, simply calling echo using this object like -> " antBuilder.echo 'print statement' "  gives "NotSerializableException"exception.

java.io.NotSerializableException: org.apache.tools.ant.taskdefs.Echo
	at org.jboss.marshalling.river.RiverMarshaller.doWriteObject(RiverMarshaller.java:860)
	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.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.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)

So please guide me to resolve this problem if anyone had faced this issue or have any idea about it.

Any help is appreciated!

Thank you very much!

Ganesh K.

[Thomas Keller]

IIRC objects used in pipelines need to be able to get serialized, because the build should be pausable and resumable at any time. Try to refactor the AntBuilder object creation and call into a groovy method and annotate this method with @NonCPS

[Donald Morton]

Here are some references for you:

https://support.cloudbees.com/hc/en-us/articles/230612967-Pipeline-The-pipeline-even-if-successful-ends-with-java-io-NotSerializableException

https://github.com/jenkinsci/pipeline-plugin/blob/master/TUTORIAL.md#serializing-local-variables

https://issues.jenkins-ci.org/browse/JENKINS-35140

[Ganesh Kumbhar]

Thanks a lot Thomas & Donald for your reply .. I would try these suggestions & I guess this should be working!

Actually now I am getting error before going to this stage, don't know why but same block of code behaving weird now, it was working file earlier :( 

problem in loading a file!

a

As you see here, it's not able to load groovy file, which was working the day before! 

Please let me know if you have any idea ? Details as below :  

My Job configuration : 

here, runErtools*() method is defined in Jenkins File which loads another groovy file as below : 

void runErtoolsRegressionTests(def mks_host, def si_port, def im_port, def autotest_dev_cp, def autotest_pv_cp) {
    ws("D:\\ci_ws\\$env.JOB_NAME") {
        git branch: 'regression-tests', url: 'http://frjenkins001.auto.contiwan.com:8080/tools/ertools'
        def curDir = pwd()
        println curDir
        def regressionTests = load("RegressionTestScripts/ertools_regression_test.groovy")
        print regressionTests
        regressionTests.runRegressionTests(mks_host,si_port,im_port,autotest_dev_cp,autotest_pv_cp, $env.JOB_NAME)

      }

}

Thanks & Regards,

Ganesh.

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