java.lang.NullPointerException: This exception has no message.

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via Google Groups by Mike Caspar, 3 months ago
java.lang.NullPointerException:
at jenkins.model.Jenkins.lookup(Jenkins.java:3913)
at hudson.PluginWrapper.getPlugin(PluginWrapper.java:287)
at hudson.PluginWrapper.stop(PluginWrapper.java:377)
at hudson.PluginManager.stop(PluginManager.java:650)
at org.jvnet.hudson.test.TestPluginManager.reallyStop(TestPluginManager.java:129)
at org.jvnet.hudson.test.TestPluginManager.access$000(TestPluginManager.java:55)
at org.jvnet.hudson.test.TestPluginManager$1.run(TestPluginManager.java:140)

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