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dev build 200110250100 IBM JDK 1.3.1 This issue is caused by some change commited over the past week; it is quite recent. I have been unable to track down exact repro steps but basically you play around with Netbeans until suddenly you get into this state whereby no matter what you do, Netbeans *always* throws the following exception: Fri Oct 26 01:26:27 EDT 2001: java.lang.NullPointerException: null java.lang.NullPointerException at org.openide.util.actions.NodeAction$NodesL.propertyChange(NodeAction.java:203) at java.beans.PropertyChangeSupport.firePropertyChange(PropertyChangeSupport.java:158) at org.netbeans.core.windows.RegistryImpl.tryFireChanges(RegistryImpl.java:310) at org.netbeans.core.windows.RegistryImpl.stateChanged(RegistryImpl.java:275) at org.netbeans.core.windows.StateManager.fireStateChanged(StateManager.java:117) at org.netbeans.core.windows.StateManager.setMainState(StateManager.java:133) at org.netbeans.core.windows.WindowManagerImpl.setCurrentWorkspace(WindowManagerImpl.java:440) at org.netbeans.core.windows.WorkspaceImpl.activate(WorkspaceImpl.java:410) at org.netbeans.core.windows.WorkspaceSwitcher$PoolListener.propertyChange(WorkspaceSwitcher.java:134) at org.netbeans.core.awt.TabControl.fireIndexChange(TabControl.java:830) at org.netbeans.core.awt.TabControl.setSelectedIndex(TabControl.java:189) at org.netbeans.core.awt.TabControl.processMouseEvent(TabControl.java:787) at java.awt.Component.processEvent(Component.java:3600) at java.awt.Container.processEvent(Container.java:1173) at java.awt.Component.dispatchEventImpl(Component.java:2649) at java.awt.Container.dispatchEventImpl(Container.java:1222) at java.awt.Component.dispatchEvent(Component.java:2553) at java.awt.LightweightDispatcher.retargetMouseEvent(Container.java:2465) [catch] at java.awt.LightweightDispatcher.processMouseEvent(Container.java:2224) at java.awt.LightweightDispatcher.dispatchEvent(Container.java:2139) at java.awt.Container.dispatchEventImpl(Container.java:1209) at java.awt.Window.dispatchEventImpl(Window.java:923) at java.awt.Component.dispatchEvent(Component.java:2553) at java.awt.EventQueue.dispatchEvent(EventQueue.java:401) at java.awt.EventDispatchThread.pumpOneEvent(EventDispatchThread.java:109) at java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:99) at java.awt.EventDispatchThread.run(EventDispatchThread.java:90)
Fixed in NodeAction 1.27.
*** Issue 16941 has been marked as a duplicate of this issue. ***
Marking as P2 only because the beta2 - it occurs in build 20011026. And because closing P2 as duplicate of this one. Also please check issues before filling new one mainly in similar cases when some very visible bug occurs. There was filled the same issue, but P2, before ;-)
This is a serious issue that has happend to many people several times. A patch for beta is a must, because of the serious implications. It is not acceptible to have this bug in beta aspecially because a fix already exists. Rasing to P1
Merged into release33_beta2 branch.
OS/platform independent I try to reproduce issue 16941 and NPE didn't arise. This is the reason change state to VERIFIED. verified in [nb_dev](20011116)
Resolved for 3.4.x or earlier, no new info since then -> closing.