Jenkins crashing after 1.631 update and disabling mailer

[Zach La Celle]

I recently upgrade to 1.631, and rebooted/ran successfully.  I have also had issues with Extended Mailer Plugin emailing when it shouldn't, so I tried disabling it in the plugin list.

Now, when I restart Jenkins, I get this:

SEVERE: Failed Loading global config

java.io.IOException: Unable to read /var/lib/jenkins/config.xml

        at hudson.XmlFile.unmarshal(XmlFile.java:167)

        at jenkins.model.Jenkins$16.run(Jenkins.java:2663)

        at org.jvnet.hudson.reactor.TaskGraphBuilder$TaskImpl.run(TaskGraphBuilder.java:169)

        at org.jvnet.hudson.reactor.Reactor.runTask(Reactor.java:282)

        at jenkins.model.Jenkins$7.runTask(Jenkins.java:899)

        at org.jvnet.hudson.reactor.Reactor$2.run(Reactor.java:210)

        at org.jvnet.hudson.reactor.Reactor$Node.run(Reactor.java:117)

        at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1145)

        at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:615)

        at java.lang.Thread.run(Thread.java:745)

Caused by: java.lang.NoClassDefFoundError: hudson/tasks/Mailer$UserProperty

        at java.lang.Class.getDeclaredFields0(Native Method)

        at java.lang.Class.privateGetDeclaredFields(Class.java:2499)

        at java.lang.Class.getDeclaredFields(Class.java:1811)

        at com.thoughtworks.xstream.mapper.AnnotationMapper.processTypes(AnnotationMapper.java:216)

        at com.thoughtworks.xstream.mapper.AnnotationMapper.processAnnotations(AnnotationMapper.java:182)

        at com.thoughtworks.xstream.mapper.AnnotationMapper.defaultImplementationOf(AnnotationMapper.java:141)

        at hudson.util.xstream.MapperDelegate.defaultImplementationOf(MapperDelegate.java:59)

        at com.thoughtworks.xstream.mapper.MapperWrapper.defaultImplementationOf(MapperWrapper.java:46)

        at com.thoughtworks.xstream.core.TreeUnmarshaller.convertAnother(TreeUnmarshaller.java:54)

        at hudson.util.RobustReflectionConverter.unmarshalField(RobustReflectionConverter.java:352)

        at hudson.util.RobustReflectionConverter.doUnmarshal(RobustReflectionConverter.java:290)

        at hudson.util.RobustReflectionConverter.unmarshal(RobustReflectionConverter.java:229)

        at com.thoughtworks.xstream.core.TreeUnmarshaller.convert(TreeUnmarshaller.java:72)

        at com.thoughtworks.xstream.core.AbstractReferenceUnmarshaller.convert(AbstractReferenceUnmarshaller.java:65)

        at com.thoughtworks.xstream.core.TreeUnmarshaller.convertAnother(TreeUnmarshaller.java:66)

        at com.thoughtworks.xstream.core.TreeUnmarshaller.convertAnother(TreeUnmarshaller.java:50)

        at com.thoughtworks.xstream.core.TreeUnmarshaller.start(TreeUnmarshaller.java:134)

        at com.thoughtworks.xstream.core.AbstractTreeMarshallingStrategy.unmarshal(AbstractTreeMarshallingStrategy.java:32)

        at com.thoughtworks.xstream.XStream.unmarshal(XStream.java:1189)

        at hudson.util.XStream2.unmarshal(XStream2.java:113)

        at com.thoughtworks.xstream.XStream.unmarshal(XStream.java:1173)

        at hudson.XmlFile.unmarshal(XmlFile.java:163)

        ... 9 more

Caused by: java.lang.ClassNotFoundException: hudson.tasks.Mailer$UserProperty

        at jenkins.util.AntClassLoader.findClassInComponents(AntClassLoader.java:1376)

        at jenkins.util.AntClassLoader.findClass(AntClassLoader.java:1326)

        at jenkins.util.AntClassLoader.loadClass(AntClassLoader.java:1079)

        at java.lang.ClassLoader.loadClass(ClassLoader.java:358)

        ... 31 more

The config file is present, and should be working.

Any ideas?

[Victor Martinez]

Hi,

 Are you sure the mail plugin is there? since "Caused by: java.lang.NoClassDefFoundError: hudson/tasks/Mailer$UserProperty" means that plugin is not part of the installation. A bit weird as the mail plugin is part of the jenkins default plugin list afaik. You could reinstall it and see whether it works, and that's probably the same issue you've seen with the Extended Mailer Plugin.

I hope it helps

Cheers

[Zach La Celle]

So I figured out how to re-enable the mailer plugin from the terminal, and it starts fine. So it looks like disabling this plugin crashes Jenkins.

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[Slide]

If you have other plugins that use the classes from Mailer, then yes, it will definitely crash.

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