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This bug was originally marked as duplicate of bug 222153, that is already resolved. This bug is still valid, so this seems to be another bug, but it might be related. Build: NetBeans IDE 7.3 (Build 201302132200) VM: Java HotSpot(TM) Client VM, 19.0-b09, Java(TM) SE Runtime Environment, 1.6.0_23-b05 OS: Windows XP Stacktrace: java.lang.NullPointerException at org.netbeans.modules.tasks.ui.DashboardTopComponent.componentClosed(DashboardTopComponent.java:229) at org.openide.windows.WindowManager.componentCloseNotify(WindowManager.java:322) at org.netbeans.core.windows.WindowManagerImpl.notifyTopComponentClosed(WindowManagerImpl.java:1147) at org.netbeans.core.windows.Central.addModeClosedTopComponent(Central.java:900) at org.netbeans.core.windows.Central.userClosedTopComponent(Central.java:2027) at org.netbeans.core.windows.view.DefaultView.userClosedTopComponent(DefaultView.java:794)
Created attachment 131728 [details] stacktrace
NPE due to java.lang.ClassNotFoundException: org.jdesktop.swingx.painter.PainterIcon - PainterIcon is not part of the module anymore -> INVALID
*** Bug 226110 has been marked as a duplicate of this bug. ***