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Build: NetBeans IDE Dev (Build 200708080000) VM: Java HotSpot(TM) 64-Bit Server VM, 1.6.0_02-b05 OS: Linux, 2.6.22.1-41.fc7, amd64 STACKTRACE: (first 10 lines) java.lang.NullPointerException at org.netbeans.core.windows.view.ui.MainWindow.setDesktop(MainWindow.java:443) at org.netbeans.core.windows.view.ViewHierarchy.setDesktop(ViewHierarchy.java:762) at org.netbeans.core.windows.view.ViewHierarchy.setMainWindowDesktop(ViewHierarchy.java:752) at org.netbeans.core.windows.view.ViewHierarchy.updateDesktop(ViewHierarchy.java:645) at org.netbeans.core.windows.view.DefaultView.changeGUI(DefaultView.java:391) at org.netbeans.core.windows.ViewRequestor.dispatchRequest(ViewRequestor.java:247) at org.netbeans.core.windows.ViewRequestor.processRequest(ViewRequestor.java:223) at org.netbeans.core.windows.ViewRequestor.postRequest(ViewRequestor.java:161) at org.netbeans.core.windows.ViewRequestor.scheduleRequest(ViewRequestor.java:101) at org.netbeans.core.windows.Central.activateModeTopComponent(Central.java:1665)
I guess this is random, so i don't have a chance to verify, but there is probable fix: Checking in MainWindow.java; /cvs/core/windows/src/org/netbeans/core/windows/view/ui/MainWindow.java,v <-- MainWindow.java new revision: 1.73; previous revision: 1.72
*** Issue 112872 has been marked as a duplicate of this issue. ***