I have a pipline using two similar functions, both annotated as NonCPS. First function works, but second always fail with NotSerializable exception.

@NonCPS
def findRuntimeKitVersion (xml) {
    def xmlparsed = new XmlSlurper(false,true).parseText(xml)
                    
    echo xmlparsed.attributes()['count'] + " files found"

    def versionFound

    xmlparsed.file.findAll { def fileNode ->
        result = [email protected]() =~ /.*-(.*)-RuntimeKit.*/
    }.each { runtimeFileNode ->
        versionFound = result[0][1]
        echo "Found version " + versionFound
    }
    if (!versionFound) {
        error ("Product version was not found")
    } else {
        return versionFound
    }
}

@NonCPS
def findRuntimeKitPath (xml) {
    def xmlparsed = new XmlSlurper(false,true).parseText(xml)
                    
    echo xmlparsed.attributes()['count'] + " files found"

    def href

    xmlparsed.file.findAll { def fileNode ->
        [email protected]() =~ /.*-(.*)-RuntimeKit.*/
    }.each { runtimeFileNode ->
        href = [email protected]()
    }
    if (!href) {
        error ("Product path was not found")
    } else {
        return href
    }
}

They are called one after another:

version = findRuntimeKitVersion(xml)

echo "Choosing version " + version

def href = findRuntimeKitPath(xml)

No matter what I do with findRuntimeKitPath function (even copied code from first one) it always gives NotSerializable exception, but first one always work.

What is the problem here?