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Bug
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Resolution: Fixed
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Minor
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Jenkins version: 2.492.3
Operating system: Ubuntu 22.04, amd64 (affected agent nodes are also Ubuntu 22.04, amd64)
OpenJDK version: 17.0.15 2025-04-15
After upgrading the following plugins:
junit checks-api font-awesome-api plugin-util-api echarts-api bootstrap5-api jquery3-api pipeline-graph-view commons-lang3-api
alongside upgrading OpenJDK and rebooting, we began to experience the following errors emitted from our Jenkins pipelines. This error causes an otherwise-successful pipeline to appear as failed, but does not seem to impact the outcome of the job in any way other than how the status is displayed.
Cannot invoke method call() on null object org.codehaus.groovy.runtime.NullObject.invokeMethod(NullObject.java:91) org.codehaus.groovy.runtime.callsite.PogoMetaClassSite.call(PogoMetaClassSite.java:47) org.codehaus.groovy.runtime.callsite.CallSiteArray.defaultCall(CallSiteArray.java:47) org.codehaus.groovy.runtime.callsite.NullCallSite.call(NullCallSite.java:34) org.codehaus.groovy.runtime.callsite.CallSiteArray.defaultCall(CallSiteArray.java:47) org.codehaus.groovy.runtime.callsite.AbstractCallSite.call(AbstractCallSite.java:116) PluginClassLoader for workflow-cps//com.cloudbees.groovy.cps.sandbox.DefaultInvoker.methodCall(DefaultInvoker.java:20) PluginClassLoader for workflow-cps//org.jenkinsci.plugins.workflow.cps.LoggingInvoker.methodCall(LoggingInvoker.java:118) org.jenkinsci.plugins.pipeline.modeldefinition.ModelInterpreter.inDeclarativeAgent(ModelInterpreter.groovy:572) org.jenkinsci.plugins.pipeline.modeldefinition.ModelInterpreter.evaluateStage(ModelInterpreter.groovy:276) org.jenkinsci.plugins.pipeline.modeldefinition.ModelInterpreter.stageInput(ModelInterpreter.groovy:354) org.jenkinsci.plugins.pipeline.modeldefinition.ModelInterpreter.evaluateStage(ModelInterpreter.groovy:265) org.jenkinsci.plugins.pipeline.modeldefinition.ModelInterpreter.inWrappers(ModelInterpreter.groovy:592) org.jenkinsci.plugins.pipeline.modeldefinition.ModelInterpreter.evaluateStage(ModelInterpreter.groovy:263) org.jenkinsci.plugins.pipeline.modeldefinition.ModelInterpreter.withEnvBlock(ModelInterpreter.groovy:432) org.jenkinsci.plugins.pipeline.modeldefinition.ModelInterpreter.evaluateStage(ModelInterpreter.groovy:258) ___cps.transform___(Native Method)
In order to reproduce this error, I have traced it down to the following minimal example:
pipeline {
agent none
stages {
stage("Foo") {
agent {
docker {
label "*********"
image "*********"
registryUrl "*********"
registryCredentialsId "*********"
}
}
stages {
stage("Echo bar") {
steps { script { sh "echo bar" } }
}
}
}
}
}
It seems that changing the scope of agent::docker fixes the issue, as the following example pipeline completes without exhibiting this error:
pipeline {
agent none
stages {
stage("Foo") {
agent { label "*********" }
stages {
stage("Echo bar") {
agent {
docker {
reuseNode true
image "*********"
registryUrl "*********"
registryCredentialsId "*********"
}
}
steps { script { sh "echo bar" } }
}
}
}
}
}
While this is very much not a showstopper (the second minimal example works for our use case), I would be interested in tracing the cause of this change. The first example worked without issue until the upgrade/reboot.
