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Bug
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Resolution: Duplicate
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Major
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None
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Linux
I'm seeing the following exception thrown at startup...
Oct 21, 2010 9:37:00 AM hudson.triggers.SafeTimerTask run
SEVERE: Timer task hudson.WebAppMain$2$1@109037d failed
java.lang.NullPointerException
at java.lang.String.startsWith(String.java:1421)
at java.lang.String.startsWith(String.java:1450)
at hudson.maven.MavenModuleSetBuild$1.isDescendantOf(MavenModuleSetBuild.java:178)
at hudson.maven.MavenModuleSetBuild$1.<init>(MavenModuleSetBuild.java:147)
at hudson.maven.MavenModuleSetBuild.getChangeSetFor(MavenModuleSetBuild.java:141)
at hudson.maven.FilteredChangeLogSet.<init>(FilteredChangeLogSet.java:51)
at hudson.maven.MavenBuild.getChangeSet(MavenBuild.java:161)
at hudson.model.AbstractBuild.hasParticipant(AbstractBuild.java:315)
at hudson.model.User.getBuilds(User.java:369)
at hudson.WebAppMain$2$1.doRun(WebAppMain.java:227)
at hudson.triggers.SafeTimerTask.run(SafeTimerTask.java:54)
at java.util.TimerThread.mainLoop(Timer.java:512)
at java.util.TimerThread.run(Timer.java:462)
I believe the problem began showing up in version 1.378.
I am currently using:
Hudson - 1.381
Static Analysis Collector Plug-in - 1.8
Static Analysis Utilities - 1.14
Hudson Backup plugin - 1.5
Checkstyle Plug-in - 3.10
Hudson CVS Plug-in - 1.2
Hudson Dependency Analyzer Plugin - 0.5
Hudson Email Extension Plugin - 2.9
FindBugs Plug-in - 4.14
Hudson Maven Release Plug-in Plug-in - 0.6.1
Hudson Maven Info Plugin - 0.0.3
Maven Integration plugin - 1.381
PMD Plug-in - 3.10
Hudson Support Subscription Notification Plugin - 1.2
Hudson SSH Slaves plugin - 0.13
Hudson Subversion Plug-in - 1.17
Warnings Plug-in - 3.11
I'm not sure whether this is causing any real problems, but after I first saw it I was having problems with build hanging, and I was forced to revert to an earlier version of Hudson. If this exception isn't important, I'd like to see it cleaned up. If it is indicative of a larger problems, can we get a fix?
- duplicates
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- Closed
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- is related to
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- Resolved
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[JENKINS-7870] NullPointerException at startup -- SEVERE: Timer task hudson.WebAppMain failed
km
added a comment - Some context is needed. It appears that it's a Maven2 Job whose build is failing. There was one change in this area in the source code, but I am certain that is not why this NullPointerException is thrown.
km
added a comment - Some context is needed. It appears that it's a Maven2 Job whose build is failing. There was one change in this area in the source code, but I am certain that is not why this NullPointerException is thrown. 
rainerweinhold
added a comment - Think is same problem as in JENKINS-7854 
sinkha
added a comment - I agree, it looks like it could be the same issue. I think rainerweinhold might be on the right track...on JENKINS-7854 he commented that the bug may have been introduced by the fix provided for JENKINS-5357. The timing fits with when I started seeing the issue and I believe the problem was cropping up in sub-module builds.
I'll try to provide some more detailed output if I can, but I only have our production Hudson server which I already reverted to 1.377. We have a lot of deadlines this month, so it's not a good time for me to be playing around with our setup. If I can, I'll try to upgrade again to reproduce the problem soon, and then attach more detailed logs. Hopefully rainerweinhold can provide enough info that I won't need to.
sinkha
added a comment - I agree, it looks like it could be the same issue. I think rainerweinhold might be on the right track...on JENKINS-7854 he commented that the bug may have been introduced by the fix provided for JENKINS-5357 . The timing fits with when I started seeing the issue and I believe the problem was cropping up in sub-module builds.
I'll try to provide some more detailed output if I can, but I only have our production Hudson server which I already reverted to 1.377. We have a lot of deadlines this month, so it's not a good time for me to be playing around with our setup. If I can, I'll try to upgrade again to reproduce the problem soon, and then attach more detailed logs. Hopefully rainerweinhold can provide enough info that I won't need to.
kutzi
added a comment - Please watch and comment on JENKINS-7684 
Immediately after submitting this bug, I started to see builds failing, so it definitely needs to be fixed.
ERROR: Processing failed due to a bug in the code. Please report this to users@hudson.dev.java.net
java.lang.NullPointerException
at java.lang.String.startsWith(String.java:1421)
at java.lang.String.startsWith(String.java:1450)
at hudson.maven.MavenModuleSetBuild$1.isDescendantOf(MavenModuleSetBuild.java:178)
at hudson.maven.MavenModuleSetBuild$1.<init>(MavenModuleSetBuild.java:147)
at hudson.maven.MavenModuleSetBuild.getChangeSetFor(MavenModuleSetBuild.java:141)
at hudson.maven.MavenModuleSetBuild$RunnerImpl.doRun(MavenModuleSetBuild.java:423)
at hudson.model.AbstractBuild$AbstractRunner.run(AbstractBuild.java:416)
at hudson.model.Run.run(Run.java:1280)
at hudson.maven.MavenModuleSetBuild.run(MavenModuleSetBuild.java:293)
at hudson.model.ResourceController.execute(ResourceController.java:88)
at hudson.model.Executor.run(Executor.java:139)