java.io.NotSerializableException: groovy.util.slurpersupport.Attributes

Question

I'm trying to run this pipeline script

#!groovy @NonCPS def findCommand(filePath) { def file = new File(filePath) def text = file.getText() def components = new XmlSlurper().parseText( text ) def map = new HashMap<>() components.component.each { def component-> map << ["${component.@application}" : [:]] def componentMap = map.get("${component.@application}") component.environments.environment.each { def environment-> componentMap << ["${environment.@name}" : [:]] def actionMap = componentMap.get("${environment.@name}") environment.actions.action.each { def action-> actionMap << ["${action.@toDo}" : action] } } } components = null text = null file = null return map } pipeline { agent any stages { stage('Build') { steps { echo 'Building..' echo "Running ${env.BUILD_ID} on ${env.JENKINS_URL}" echo "Parameters: ${params.environment} ${params.actions} ${params.applications}" script{ try { map = findCommand("XXX.xml") } catch (Exception e) { echo "Catching the NonCPS Exception"; } echo "${map}" } build job: "sample echo", parameters: [ [$class: 'StringParameterValue', name: 'application', value: "${params.application}"], [$class: 'StringParameterValue', name: 'environment', value: "${params.environment}"] ] } } } post { failure { echo "Build failed..." } } }

I know I'm using XmlSlurper, but I've also specified the code-block to be @NonCPS. However, this is still throwing a java.IO.NonSerializableException.

I also tried using a try-catch block to catch the exception, but that didn't seem to work either. I'd gladly appreciate some help in how I could make the build completely cleanly. Thanks :(

bitnahian · Accepted Answer · 2018-03-13 05:34:55Z

The answer was in the exception. It's quite weird, but changing

components.component.each { def component-> map << ["${component.@application}" : [:]] def componentMap = map.get("${component.@application}") component.environments.environment.each { def environment-> componentMap << ["${environment.@name}" : [:]] def actionMap = componentMap.get("${environment.@name}") environment.actions.action.each { def action-> actionMap << ["${action.@toDo}" : action] } } }

to

components.component.each { def component-> def application = "${component.@application}".toString() map << [ (application) : [:]] def componentMap = map.get(application) component.environments.environment.each { def environment-> def name = "${environment.@name}".toString() componentMap << [ (name) : [:]] def actionMap = componentMap.get(name) environment.actions.action.each { def action-> def toDo = "${action.@toDo}".toString() def actionString = action.toString() actionMap << [ (toDo) : (actionString)] } } }

solved the issue. It had to do with the (non serializable) XMLSlurper data structure type still being carried into my HashMap.

thank you. this helped me. I was adding items of type parser.parseText(xml) to a list and experienced something similar. Now, I'm doing a toString() and it's working fine
See also Error: java.io.NotSerializableException: groovy.util.slurpersupport.Attributes.

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