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

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via jenkins-ci.org by Unknown author, 1 year ago
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java.lang.NullPointerException: 	at hudson.util.CaseInsensitiveComparator.compare(CaseInsensitiveComparator.java:40)	at hudson.util.CaseInsensitiveComparator.compare(CaseInsensitiveComparator.java:34)	at java.util.TreeMap.getEntryUsingComparator(TreeMap.java:369)	at java.util.TreeMap.getEntry(TreeMap.java:340)	at java.util.TreeMap.get(TreeMap.java:273)	at hudson.plugins.ws_cleanup.Cleanup.(Cleanup.java:35)	at hudson.plugins.ws_cleanup.WsCleanup.perform(WsCleanup.java:165)	at hudson.tasks.BuildStepMonitor$1.perform(BuildStepMonitor.java:20)