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Bug
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Resolution: Fixed
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Major
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None
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Linux vm86.gsc.wustl.edu 2.6.32-21-server #32-Ubuntu SMP Fri Apr 16 09:17:34 UTC 2010 x86_64 GNU/Linux
Jenkins v1.411
Jenkins Git v1.1.8
If 'Global Config user.name Value' and/or 'Global Config user.email Value' are not set in the Jenkins configuration then the following error occurs when Jenkins Git tries to checkout a repo:
Started by user anonymous Building on master Checkout:workspace / /var/lib/jenkins/jobs/1_Genome_1_Poll_for_Changes/workspace - hudson.remoting.LocalChannel@7c6b3d66 Using strategy: Default Last Built Revision: Revision b41bc2430e83c6eb2f1977961868bd716d81834d (origin/master) FATAL: null java.lang.NullPointerException at hudson.plugins.git.GitSCM.getGitConfigNameToUse(GitSCM.java:320) at hudson.plugins.git.GitSCM.checkout(GitSCM.java:787) at hudson.model.AbstractProject.checkout(AbstractProject.java:1181) at hudson.model.AbstractBuild$AbstractRunner.checkout(AbstractBuild.java:536) at hudson.model.AbstractBuild$AbstractRunner.run(AbstractBuild.java:424) at hudson.model.Run.run(Run.java:1374) at hudson.model.FreeStyleBuild.run(FreeStyleBuild.java:46) at hudson.model.ResourceController.execute(ResourceController.java:88) at hudson.model.Executor.run(Executor.java:145)
It seems like these values should be collected from the Git's config:
$ git config --global -l user.name=APipe Tester user.email=apipe-tester@genome.wustl.edu
Or at the very least not crash if they are not filled in.
This issue occurred after a Jenkins deb upgrade and upgrade of plugins.
[JENKINS-9702] NPE if 'Global Config user.{name,email} Value' are not set
Nathan Nutter
added a comment - I've attached the files your requested. Thanks for following up! I guess you'll have to delete the Jenkins Git user.name and user.email after loading those configs.
Nathan Nutter
added a comment - - edited I guess you'll have to delete the Jenkins Git user.name and user.email after loading those configs. 
bap
added a comment - I had this issue too, after upgrading to 1.1.8
Was all working fine before upgrade, NPE after.
Setting user.name and user.email in the global config solved it.
ohookins: in irc had the same issue too
bap
added a comment - I had this issue too, after upgrading to 1.1.8
Was all working fine before upgrade, NPE after.
Setting user.name and user.email in the global config solved it.
ohookins: in irc had the same issue too I'm still having trouble reproducing this, which is, well, weird. Will keep diving in.
Code changed in jenkins
User: Andrew Bayer
Path:
src/main/java/hudson/plugins/git/GitSCM.java
http://jenkins-ci.org/commit/git-plugin/89e610b7457d0f34e127e9d94f2af1202babf206
Log:
[FIXED JENKINS-9702] Misuse of hudson.Util.fixEmptyAndTrim was causing NPEs.
Integrated in 
plugins_git-plugin #131
[FIXED JENKINS-9702] Misuse of hudson.Util.fixEmptyAndTrim was causing NPEs.
Andrew Bayer : 89e610b7457d0f34e127e9d94f2af1202babf206
Files :
- src/main/java/hudson/plugins/git/GitSCM.java
So yeah, I fixed it. It'll be in 1.1.9, which I think I'm going to push out today.
I'm not able to replicate this in my test setup - could you attach your top-level Jenkins config.xml, the job's config.xml, and, if it exists, the top-level hudson.plugins.git.GitSCM.xml? Thanks.