java.lang.NullPointerException

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  • We use the Groovy-Postbuild-Plugin to set successful Upstream-Builds to failed, when a downstream-Build failes. The upstream-Build saves several Artefacts and creates Fingerprints from these. Some times the Groovy-Postbuild-Plugin works with the code below for ten or more builds, afterwards we get the below mentioned NullPointerException several times without changing anything in the configuration. ________________________________________________________ Groovy-Code: upstreamBuilds = manager.build.getUpstreamBuilds(); upstreamJob = upstreamBuilds.keySet().iterator().next(); lastUpstreamBuild = upstreamJob.getLastBuild(); if(lastUpstreamBuild.getResult().isBetterThan(manager.build.result)) { lastUpstreamBuild.setResult(manager.build.result); } ________________________________________________________ Exception: Groovy script failed: java.lang.NullPointerException: Cannot invoke method isBetterThan() on null object at org.codehaus.groovy.runtime.NullObject.invokeMethod(NullObject.java:77) at org.codehaus.groovy.runtime.callsite.PogoMetaClassSite.call(PogoMetaClassSite.java:45) at org.codehaus.groovy.runtime.callsite.CallSiteArray.defaultCall(CallSiteArray.java:42) at org.codehaus.groovy.runtime.callsite.NullCallSite.call(NullCallSite.java:32) at org.codehaus.groovy.runtime.callsite.CallSiteArray.defaultCall(CallSiteArray.java:42) at org.codehaus.groovy.runtime.callsite.AbstractCallSite.call(AbstractCallSite.java:108) at org.codehaus.groovy.runtime.callsite.AbstractCallSite.call(AbstractCallSite.java:116) at Script1.run(Script1.groovy:23) at groovy.lang.GroovyShell.evaluate(GroovyShell.java:580) at groovy.lang.GroovyShell.evaluate(GroovyShell.java:618) at groovy.lang.GroovyShell.evaluate(GroovyShell.java:589) at org.jvnet.hudson.plugins.groovypostbuild.GroovyPostbuildRecorder.perform(GroovyPostbuildRecorder.java:273) at hudson.tasks.BuildStepMonitor$1.perform(BuildStepMonitor.java:19) at hudson.model.AbstractBuild$AbstractBuildExecution.perform(AbstractBuild.java:717) at hudson.model.AbstractBuild$AbstractBuildExecution.performAllBuildSteps(AbstractBuild.java:692) at hudson.model.Build$BuildExecution.post2(Build.java:183) at hudson.model.AbstractBuild$AbstractBuildExecution.post(AbstractBuild.java:639) at hudson.model.Run.execute(Run.java:1485) at hudson.model.FreeStyleBuild.run(FreeStyleBuild.java:46) at hudson.model.ResourceController.execute(ResourceController.java:88) at hudson.model.Executor.run(Executor.java:239)
    via by Christoph Moser,
  • We use the Groovy-Postbuild-Plugin to set successful Upstream-Builds to failed, when a downstream-Build failes. The upstream-Build saves several Artefacts and creates Fingerprints from these. Some times the Groovy-Postbuild-Plugin works with the code below for ten or more builds, afterwards we get the below mentioned NullPointerException several times without changing anything in the configuration. ________________________________________________________ Groovy-Code: upstreamBuilds = manager.build.getUpstreamBuilds(); upstreamJob = upstreamBuilds.keySet().iterator().next(); lastUpstreamBuild = upstreamJob.getLastBuild(); if(lastUpstreamBuild.getResult().isBetterThan(manager.build.result)) { lastUpstreamBuild.setResult(manager.build.result); } ________________________________________________________ Exception: Groovy script failed: java.lang.NullPointerException: Cannot invoke method isBetterThan() on null object at org.codehaus.groovy.runtime.NullObject.invokeMethod(NullObject.java:77) at org.codehaus.groovy.runtime.callsite.PogoMetaClassSite.call(PogoMetaClassSite.java:45) at org.codehaus.groovy.runtime.callsite.CallSiteArray.defaultCall(CallSiteArray.java:42) at org.codehaus.groovy.runtime.callsite.NullCallSite.call(NullCallSite.java:32) at org.codehaus.groovy.runtime.callsite.CallSiteArray.defaultCall(CallSiteArray.java:42) at org.codehaus.groovy.runtime.callsite.AbstractCallSite.call(AbstractCallSite.java:108) at org.codehaus.groovy.runtime.callsite.AbstractCallSite.call(AbstractCallSite.java:116) at Script1.run(Script1.groovy:23) at groovy.lang.GroovyShell.evaluate(GroovyShell.java:580) at groovy.lang.GroovyShell.evaluate(GroovyShell.java:618) at groovy.lang.GroovyShell.evaluate(GroovyShell.java:589) at org.jvnet.hudson.plugins.groovypostbuild.GroovyPostbuildRecorder.perform(GroovyPostbuildRecorder.java:273) at hudson.tasks.BuildStepMonitor$1.perform(BuildStepMonitor.java:19) at hudson.model.AbstractBuild$AbstractBuildExecution.perform(AbstractBuild.java:717) at hudson.model.AbstractBuild$AbstractBuildExecution.performAllBuildSteps(AbstractBuild.java:692) at hudson.model.Build$BuildExecution.post2(Build.java:183) at hudson.model.AbstractBuild$AbstractBuildExecution.post(AbstractBuild.java:639) at hudson.model.Run.execute(Run.java:1485) at hudson.model.FreeStyleBuild.run(FreeStyleBuild.java:46) at hudson.model.ResourceController.execute(ResourceController.java:88) at hudson.model.Executor.run(Executor.java:239)
    via by Christoph Moser,
  • ERROR: Processing failed due to a bug in the code.
    via by Ahmet Maruf Aytekin,
  • Tigase Forums | tigase.net
    via by Unknown author,
    • java.lang.NullPointerException: Cannot invoke method isBetterThan() on null object at org.codehaus.groovy.runtime.NullObject.invokeMethod(NullObject.java:77) at org.codehaus.groovy.runtime.callsite.PogoMetaClassSite.call(PogoMetaClassSite.java:45) at org.codehaus.groovy.runtime.callsite.CallSiteArray.defaultCall(CallSiteArray.java:42) at org.codehaus.groovy.runtime.callsite.NullCallSite.call(NullCallSite.java:32) at org.codehaus.groovy.runtime.callsite.CallSiteArray.defaultCall(CallSiteArray.java:42) at org.codehaus.groovy.runtime.callsite.AbstractCallSite.call(AbstractCallSite.java:108) at org.codehaus.groovy.runtime.callsite.AbstractCallSite.call(AbstractCallSite.java:116) at Script1.run(Script1.groovy:23) at groovy.lang.GroovyShell.evaluate(GroovyShell.java:580) at groovy.lang.GroovyShell.evaluate(GroovyShell.java:618) at groovy.lang.GroovyShell.evaluate(GroovyShell.java:589) at org.jvnet.hudson.plugins.groovypostbuild.GroovyPostbuildRecorder.perform(GroovyPostbuildRecorder.java:273) at hudson.tasks.BuildStepMonitor$1.perform(BuildStepMonitor.java:19) at hudson.model.AbstractBuild$AbstractBuildExecution.perform(AbstractBuild.java:717) at hudson.model.AbstractBuild$AbstractBuildExecution.performAllBuildSteps(AbstractBuild.java:692) at hudson.model.Build$BuildExecution.post2(Build.java:183) at hudson.model.AbstractBuild$AbstractBuildExecution.post(AbstractBuild.java:639) at hudson.model.Run.execute(Run.java:1485) at hudson.model.FreeStyleBuild.run(FreeStyleBuild.java:46) at hudson.model.ResourceController.execute(ResourceController.java:88) at hudson.model.Executor.run(Executor.java:239)

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