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I am not probably able to reproduce it, but sometimes it is being thrown very often when I am working with IDE (editing, compiling, debugging). java.lang.NullPointerException at org.netbeans.core.windows.ModeImpl.requestFocus(ModeImpl.java:380) at org.netbeans.core.windows.WindowManagerImpl$3.run(WindowManagerImpl.j ava:955) at java.awt.event.InvocationEvent.dispatch(InvocationEvent.java:154) at java.awt.EventQueue.dispatchEvent(EventQueue.java:317) at java.awt.EventDispatchThread.pumpOneEvent(EventDispatchThread.java:10 3) at java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:93) at java.awt.EventDispatchThread.run(EventDispatchThread.java:84)
This has happened to me several times too, sorry I don't know exactly when.
now fixed in main trunk
*** Bug 7622 has been marked as a duplicate of this bug. ***
fixed in boston too
closed