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This issue was reported manually by misterm. It already has 10 duplicates Build: NetBeans IDE Dev (Build 100921-24ab303dec5c) VM: Java HotSpot(TM) Client VM, 16.2-b04, Java(TM) SE Runtime Environment, 1.6.0_19-b04 OS: Windows 7 User Comments: athompson: HELP!!! This error won't go away! You have to restart the IDE! P1! misterm: Just running CVS update Stacktrace: java.lang.NullPointerException at org.netbeans.modules.masterfs.watcher.Watcher$1.run(Watcher.java:179) at org.openide.util.RequestProcessor$Task.run(RequestProcessor.java:1418) at org.openide.util.RequestProcessor$Processor.run(RequestProcessor.java:1960)
Created attachment 102102 [details] stacktrace
The IDE simply becomes unusable.
The issue seems to be Windows specific. I have added a diagnostic assert and I will try to reproduce it... http://hg.netbeans.org/core-main/rev/e08ce719cbc6
Integrated into 'main-golden', will be available in build *201009230000* on http://bits.netbeans.org/dev/nightly/ (upload may still be in progress) Changeset: http://hg.netbeans.org/main/rev/e08ce719cbc6 User: Petr Nejedl
So this NPE now manifests itself as an AssertionError, issue #190619. *** This bug has been marked as a duplicate of bug 190619 ***