jenkins pipeline to populate robot test result with exception: Cannot get property 'simpleName' on null object

[x***@gmail.com]

we use using mail-ext and robot frame work to try to format all test suits
detail in jenkins, and send out the report.

we are using jenkins pipeline project, and robot test result can be shown
on build UI web page.

we used now, its downloaded from github,
https://github.com/JMcn/jenkins-email-ext-templates/blob/master/robot.groovy.
to try to format test detail in email.


we can get email but content has following exception with following piece
of groovy script, any idea for this. thanks a lot, as it block us for days.



<!-- Robot Framework Results -->
<%
def robotResults = false
def actions = build.actions // List<hudson.model.Action>
actions.each() { action ->
if( action.class.simpleName.equals("RobotBuildAction") ) { //
hudson.plugins.robot.RobotBuildAction
robotResults = true %>



Exception raised during template rendering: Cannot get property
'simpleName' on null object java.lang.NullPointerException: Cannot get
property 'simpleName' on null object at
org.codehaus.groovy.runtime.NullObject.getProperty(NullObject.java:60) at
org.codehaus.groovy.runtime.InvokerHelper.getProperty(InvokerHelper.java:174)
at
org.codehaus.groovy.runtime.callsite.NullCallSite.getProperty(NullCallSite.java:47)
at
org.codehaus.groovy.runtime.callsite.AbstractCallSite.callGetProperty(AbstractCallSite.java:296)
at
SimpleTemplateScript16$_run_closure1.doCall(SimpleTemplateScript16.groovy:37)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) at
sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
at
sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.lang.reflect.Method.invoke(Method.java:498) at
org.codehaus.groovy.reflection.CachedMethod.invoke(CachedMethod.java:93) at
groovy.lang.MetaMethod.doMethodInvoke(MetaMethod.java:325) at
org.codehaus.groovy.runtime.metaclass.ClosureMetaClass.invokeMethod(ClosureMetaClass.java:294)
at groovy.lang.MetaClassImpl.invokeMethod(MetaClassImpl.java:1022) at
groovy.lang.Closure.call(Closure.java:414) at
groovy.lang.Closure.call(Closure.java:430) at
org.codehaus.groovy.runtime.DefaultGroovyMethods.each(DefaultGroovyMethods.java:2040)
at
org.codehaus.groovy.runtime.DefaultGroovyMethods.each(DefaultGroovyMethods.java:2025)
at
org.codehaus.groovy.runtime.DefaultGroovyMethods.each(DefaultGroovyMethods.java:2066)
at org.codehaus.groovy.runtime.dgm$162.invoke(Unknown Source) at
org.codehaus.groovy.runtime.callsite.PojoMetaMethodSite$PojoMetaMethodSiteNoUnwrapNoCoerce.invoke(PojoMetaMethodSite.java:274)
at
org.codehaus.groovy.runtime.callsite.PojoMetaMethodSite.call(PojoMetaMethodSite.java:56)
at
org.codehaus.groovy.runtime.callsite.AbstractCallSite.call(AbstractCallSite.java:125)
at SimpleTemplateScript16.run(SimpleTemplateScript16.groovy:36) at
groovy.text.SimpleTemplateEngine$SimpleTemplate$1.writeTo(SimpleTemplateEngine.java:168)
at
groovy.text.SimpleTemplateEngine$SimpleTemplate$1.toString(SimpleTemplateEngine.java:180)
at
hudson.plugins.emailext.plugins.content.ScriptContent.renderTemplate(ScriptContent.java:151)
at
hudson.plugins.emailext.plugins.content.ScriptContent.evaluate(ScriptContent.java:82)
at
org.jenkinsci.plugins.tokenmacro.DataBoundTokenMacro.evaluate(DataBoundTokenMacro.java:208)
at org.jenkinsci.plugins.tokenmacro.Parser.processToken(Parser.java:308) at
org.jenkinsci.plugins.tokenmacro.Action$KiHW1UeqOdqAwZul.run(Unknown
Source) at
org.parboiled.matchers.ActionMatcher.match(ActionMatcher.java:96) at
org.parboiled.parserunners.BasicParseRunner.match(BasicParseRunner.java:77)
at org.parboiled.MatcherContext.runMatcher(MatcherContext.java:351) at
org.parboiled.matchers.SequenceMatcher.match(SequenceMatcher.java:46) at
org.parboiled.parserunners.BasicParseRunner.match(BasicParseRunner.java:77)
at org.parboiled.MatcherContext.runMatcher(MatcherContext.java:351) at
org.parboiled.matchers.FirstOfMatcher.match(FirstOfMatcher.java:41) at
org.parboiled.parserunners.BasicParseRunner.match(BasicParseRunner.java:77)
at org.parboiled.MatcherContext.runMatcher(MatcherContext.java:351) at
org.parboiled.matchers.FirstOfMatcher.match(FirstOfMatcher.java:41) at
org.parboiled.parserunners.BasicParseRunner.match(BasicParseRunner.java:77)
at org.parboiled.MatcherContext.runMatcher(MatcherContext.java:351) at
org.parboiled.matchers.ZeroOrMoreMatcher.match(ZeroOrMoreMatcher.java:39)
at
org.parboiled.parserunners.BasicParseRunner.match(BasicParseRunner.java:77)
at org.parboiled.MatcherContext.runMatcher(MatcherContext.java:351) at
org.parboiled.matchers.SequenceMatcher.match(SequenceMatcher.java:46) at
org.parboiled.parserunners.BasicParseRunner.match(BasicParseRunner.java:77)
at org.parboiled.MatcherContext.runMatcher(MatcherContext.java:351) at
org.parboiled.parserunners.BasicParseRunner.run(BasicParseRunner.java:72)
at
org.parboiled.parserunners.ReportingParseRunner.runBasicMatch(ReportingParseRunner.java:86)
at
org.parboiled.parserunners.ReportingParseRunner.run(ReportingParseRunner.java:66)
at
org.parboiled.parserunners.AbstractParseRunner.run(AbstractParseRunner.java:81)
at
org.parboiled.parserunners.AbstractParseRunner.run(AbstractParseRunner.java:76)
at org.jenkinsci.plugins.tokenmacro.Parser.process(Parser.java:68) at
org.jenkinsci.plugins.tokenmacro.TokenMacro.expand(TokenMacro.java:204) at
org.jenkinsci.plugins.tokenmacro.TokenMacro.expandAll(TokenMacro.java:234)
at
hudson.plugins.emailext.plugins.ContentBuilder.transformText(ContentBuilder.java:80)
at
hudson.plugins.emailext.ExtendedEmailPublisher.addContent(ExtendedEmailPublisher.java:880)
at
hudson.plugins.emailext.ExtendedEmailPublisher.createMail(ExtendedEmailPublisher.java:753)
at
hudson.plugins.emailext.ExtendedEmailPublisher.sendMail(ExtendedEmailPublisher.java:451)
at
hudson.plugins.emailext.EmailExtStep$EmailExtStepExecution.run(EmailExtStep.java:224)
at
hudson.plugins.emailext.EmailExtStep$EmailExtStepExecution.run(EmailExtStep.java:163)
at
org.jenkinsci.plugins.workflow.steps.AbstractSynchronousNonBlockingStepExecution$1$1.call(AbstractSynchronousNonBlockingStepExecution.java:47)
at hudson.security.ACL.impersonate(ACL.java:290) at
org.jenkinsci.plugins.workflow.steps.AbstractSynchronousNonBlockingStepExecution$1.run(AbstractSynchronousNonBlockingStepExecution.java:44)
at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511)
at java.util.concurrent.FutureTask.run(FutureTask.java:266) at
java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)
at
java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)
at java.lang.Thread.run(Thread.java:745)

[Ivan Fernandez Calvo]

Try to print the value of the action variable to check tha is correct, also use the Elvis operator.

echo “Action: “ + action + “ class: “ + action?.class
If("RobotBuildAction".equals(action?.class?.simpleName))