[JIRA] [git-client-plugin] (JENKINS-27461) Git polling shows exception when job is currently running

Tue, 17 Mar 2015 07:51:15 -0700

Issue Type: Bug Bug
Assignee: Nicolas De Loof
Components: git-client-plugin
Created: 17/Mar/15 2:45 PM
Description:

I use git polling to trigger my jobs. I recognized a Exception within the "Git Polling Log":

Started on 17.03.2015 15:40:08
Using strategy: Default
[poll] Last Built Revision: Revision ae505d729d3b76e43782b351d7628024e065db61 (refs/remotes/origin/master)
ERROR: Failed to record SCM polling for hudson.maven.MavenModuleSet@42caa9c4[(BUILD) mp-modules master unit]
java.lang.RuntimeException: Unable to determine Maven version
	at org.jfrog.hudson.maven3.extractor.MavenExtractorEnvironment.isMavenVersionValid(MavenExtractorEnvironment.java:151)
	at org.jfrog.hudson.maven3.extractor.MavenExtractorEnvironment.buildEnvVars(MavenExtractorEnvironment.java:106)
	at hudson.model.AbstractBuild.getEnvironment(AbstractBuild.java:914)
	at hudson.maven.AbstractMavenBuild.getEnvironment(AbstractMavenBuild.java:56)
	at hudson.maven.MavenModuleSetBuild.getEnvironment(MavenModuleSetBuild.java:167)
	at hudson.plugins.git.GitSCM.compareRemoteRevisionWithImpl(GitSCM.java:564)
	at hudson.plugins.git.GitSCM.compareRemoteRevisionWith(GitSCM.java:526)
	at hudson.scm.SCM.compareRemoteRevisionWith(SCM.java:380)
	at hudson.scm.SCM.poll(SCM.java:397)
	at hudson.model.AbstractProject._poll(AbstractProject.java:1446)
	at hudson.model.AbstractProject.poll(AbstractProject.java:1349)
	at jenkins.triggers.SCMTriggerItem$SCMTriggerItems$Bridge.poll(SCMTriggerItem.java:119)
	at hudson.triggers.SCMTrigger$Runner.runPolling(SCMTrigger.java:515)
	at hudson.triggers.SCMTrigger$Runner.run(SCMTrigger.java:544)
	at hudson.util.SequentialExecutionQueue$QueueEntry.run(SequentialExecutionQueue.java:118)
	at java.util.concurrent.Executors$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)
Caused by: java.lang.NullPointerException
	at org.jfrog.hudson.util.MavenVersionHelper.getMavenInstallation(MavenVersionHelper.java:105)
	at org.jfrog.hudson.util.MavenVersionHelper.isAtLeastVersion(MavenVersionHelper.java:81)
	at org.jfrog.hudson.util.MavenVersionHelper.isAtLeastResolutionCapableVersion(MavenVersionHelper.java:72)
	at org.jfrog.hudson.maven3.extractor.MavenExtractorEnvironment.isMavenVersionValid(MavenExtractorEnvironment.java:149)
	... 19 more


The exception occurs when the the git polling is triggered while the job is already in progress.
Environment: Jenkins 1.596.1 LTS
git-client-plugin 1.16.1 (also tested 1.15)
git-plugin 1.6 (also tested 1.5)

running on
Ubuntu 14.04 LTS
with local git installation 1.9.1
Project: Jenkins
Labels: maven git polling pollscm exception
Priority: Critical Critical
Reporter: Michael Niestegge
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