| I receive an intermittent java.io.NotSerializableException when running a script in parallel
an exception which occurred:
in field com.cloudbees.groovy.cps.impl.BlockScopeEnv.locals
in object com.cloudbees.groovy.cps.impl.BlockScopeEnv@53ce7f91
...
Caused: java.io.NotSerializableException: java.util.regex.Matcher
at org.jboss.marshalling.river.RiverMarshaller.doWriteObject(RiverMarshaller.java:926)
...
The stack trace completely masks the location of the offending code. The offending code is when I'm storing the result of a matcher in a local variable, the main issue is that it was very difficult to locate and that it occurs inconsistently. I've reduced the steps required to reproduce to the following script:
import com.cloudbees.groovy.cps.NonCPS
//Fails when it enters this method, only if method is annotated NonCPS
@NonCPS
def getMessage(def auth) {
return '[abc][def]asdasd'
}
def getTags() {
//Below line is the offending code, it seems to break CPS rules, but it only fails intermittently
def tagMatches = getMessage(credentials) =~ /\[(.*?)\]/
def tagsList = []
for (def tagMatch in tagMatches) {
tagsList << (tagMatch[1])?.toLowerCase()
}
tagsList
}
//This doesn't seem as though it would be relevant, but if I remove it when reproducing the failure doesn't seem to appear, perhaps it causes some necessary delay that causes serialisation in the parallel run?
def getCredentials() {
withCredentials([
[$class: 'StringBinding', credentialsId: 'SOME_CREDENTIALS', variable: 'TOKEN']
])
{
"any"
}
}
def script = {
stage(it) {
println tags
}
}
def scripts = [:]
for (int i = 0; i < 5; i++) {
def runName = "run ${i}"
scripts."run ${i}" = { script(runName) }
}
//Running the scripts sequentially does not cause issue
for ( def _script:scripts.values()){
_script()
}
//Running the scripts in parallel causes the issue
parallel scripts
|
