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https://issues.jenkins-ci.org/browse/JENKINS-12577?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=161697#comment-161697
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shinsato commented on JENKINS-12577:
------------------------------------
The fix for 13317 prevented null values for default subject and body fields
which I thought might be related - but it isn't.
The line of code that is causing a NullPointerException is return line in Slave:
public Launcher createLauncher(TaskListener listener) {
SlaveComputer c = getComputer();
return new RemoteLauncher(listener, c.getChannel(),
c.isUnix()).decorateFor(this);
}
The only thing that could cause a NPE are the dereferences of c, which is the
computer. Something has gotten pretty broken in the configuration for
Slave.getComputer() to return null. I'd agree I doubt this is the email-ext
plugin.
> Email notification hangs due to NullPointerException
> ----------------------------------------------------
>
> Key: JENKINS-12577
> URL: https://issues.jenkins-ci.org/browse/JENKINS-12577
> Project: Jenkins
> Issue Type: Bug
> Components: email-ext
> Affects Versions: current
> Environment: Windows 2008 Server x64, Java 1.6.0_25
> Reporter: Costin Caraivan
> Priority: Blocker
> Attachments: template.jelly
>
>
> We have an email notification which uses a Jelly template. So far it worked
> ok, but recently we started getting these:
> Jan 25, 2012 2:11:23 PM hudson.plugins.emailext.ExtendedEmailPublisher
> sendMail
> WARNING: Could not send email.
> java.lang.NullPointerException
> at hudson.model.Slave.createLauncher(Slave.java:311)
> at
> hudson.plugins.perforce.PerforceMailResolver.findMailAddressFor(PerforceMailResolver.java:60)
> at
> hudson.tasks.MailAddressResolver.resolve(MailAddressResolver.java:100)
> at hudson.tasks.Mailer$UserProperty.getAddress(Mailer.java:488)
> at
> hudson.plugins.emailext.ExtendedEmailPublisher.createMail(ExtendedEmailPublisher.java:331)
> at
> hudson.plugins.emailext.ExtendedEmailPublisher.sendMail(ExtendedEmailPublisher.java:251)
> at
> hudson.plugins.emailext.ExtendedEmailPublisher._perform(ExtendedEmailPublisher.java:243)
> at
> hudson.plugins.emailext.ExtendedEmailPublisher.perform(ExtendedEmailPublisher.java:203)
> at hudson.tasks.BuildStepMonitor$3.perform(BuildStepMonitor.java:36)
> at
> hudson.model.AbstractBuild$AbstractRunner.perform(AbstractBuild.java:694)
> at
> hudson.model.AbstractBuild$AbstractRunner.performAllBuildSteps(AbstractBuild.java:669)
> at
> hudson.model.AbstractBuild$AbstractRunner.performAllBuildSteps(AbstractBuild.java:647)
> at hudson.model.Build$RunnerImpl.cleanUp(Build.java:171)
> at hudson.model.Run.run(Run.java:1448)
> at hudson.model.FreeStyleBuild.run(FreeStyleBuild.java:46)
> at hudson.model.ResourceController.execute(ResourceController.java:88)
> at hudson.model.Executor.run(Executor.java:230)
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