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This bug was originally marked as duplicate of bug 124004, that is already resolved. This bug is still valid, so this seems to be another bug, but it might be related. Build: NetBeans IDE Dev (Build 201002152000) VM: Java HotSpot(TM) Client VM, 17.1-b03, Java(TM) SE Runtime Environment, 1.6.0_22-b04 OS: Windows 7 User Comments: GUEST: I clicked on the jScrollpane of the TopComponent in the Inspector GUEST: Trabalhando normalmente. GUEST: Clicked on a JDialog node in the GUI Builder Inspector GUEST: NullPointerException at org.netbeans.modules.form.FormDesigner.isInDesigner GUEST: developing swing components Stacktrace: java.lang.NullPointerException at org.netbeans.modules.form.FormDesigner.isInDesigner(FormDesigner.java:537) at org.netbeans.modules.form.FormDesigner.componentToLayoutComponent(FormDesigner.java:1019) at org.netbeans.modules.form.FormDesigner.addComponentToSelectionImpl(FormDesigner.java:999) at org.netbeans.modules.form.ComponentInspector$NodeSelectionListener.propertyChange(ComponentInspector.java:525) at java.beans.PropertyChangeSupport.firePropertyChange(PropertyChangeSupport.java:339) at java.beans.PropertyChangeSupport.firePropertyChange(PropertyChangeSupport.java:276)
Created attachment 122947 [details] stacktrace
A bug in an old version. Probably fixed as bug 189837. *** This bug has been marked as a duplicate of bug 189837 ***