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Build: NetBeans IDE 6.1 (Build 200805300101) VM: Java HotSpot(TM) Client VM, 1.6.0-b105, Java(TM) SE Runtime Environment, 1.6.0-b105 OS: Windows XP, 5.1, x86 User Comments:
Created attachment 63215 [details] stacktrace
Created attachment 63662 [details] stacktrace
random and exception is harmless. In fact I cannot reproduce.
Fixed in: #1b072e9d61c5
Integrated into 'main-golden', available in build *200808141419* on http://bits.netbeans.org/dev/nightly/ Changeset: http://hg.netbeans.org/main/rev/1b072e9d61c5 User: Tomas Zezula <tzezula@netbeans.org> Log: #137900:NullPointerException at org.netbeans.modules.java.navigation.ToolTipManagerEx.mouseExited
Oh, yes "harmless" ..., it came with patch 3 into NB6.1 and blocks the IDE so you must restart ... very "harmless" ...
Are you using a new build? It is fixed in the NetBeans 6.5 builds later than Wed Aug 13 19:23:53 2008 . If you have newer build please attach the messages.log
Works fine in later builds (Wed Aug 13 19:23:53 2008).
*** Issue 150580 has been marked as a duplicate of this issue. ***