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Product Version: NetBeans IDE Dev (Build 200709120000) Java: 1.6.0; Java HotSpot(TM) Client VM 1.6.0-b105 System: Linux version 2.6.20-16-generic running on i386; UTF-8; en_US (nb) Problem: If you apply a design pattern to a schema then close that schema and choose to discard changes a NPE is thrown. Steps: 1. Create newLoan sample schema 2. Change to design view 3. Apply design pattern (any one available) 4. Close the schema and choose discard when asked if you want to save changes 5. Exception is thrown. java.lang.NullPointerException at org.netbeans.modules.xml.schema.abe.ModelEventMediator.cleanUp(ModelEventMediator.java:80) at org.netbeans.modules.xml.schema.abe.ModelEventMediator$1.propertyChange(ModelEventMediator.java:53) at java.beans.PropertyChangeSupport.firePropertyChange(PropertyChangeSupport.java:339) at java.beans.PropertyChangeSupport.firePropertyChange(PropertyChangeSupport.java:347) at java.beans.PropertyChangeSupport.firePropertyChange(PropertyChangeSupport.java:276) at java.awt.Component.firePropertyChange(Component.java:7865) at org.netbeans.modules.xml.schema.abe.ABEBaseDropPanel.fireComponentRemoved(ABEBaseDropPanel.java:74) at org.netbeans.modules.xml.schema.abe.ABEBaseDropPanel$1.propertyChange(ABEBaseDropPanel.java:64) at java.beans.PropertyChangeSupport.firePropertyChange(PropertyChangeSupport.java:339) at java.beans.PropertyChangeSupport.firePropertyChange(PropertyChangeSupport.java:276) at org.netbeans.modules.xml.schema.abe.InstanceUIContext.shutdown(InstanceUIContext.java:153) at org.netbeans.modules.xml.schema.abe.InstanceDesignerPanel.shutdown(InstanceDesignerPanel.java:358) at org.netbeans.modules.xml.schema.multiview.SchemaABEViewMultiViewElement.componentClosed(SchemaABEViewMultiViewElement.java:323) at org.netbeans.core.multiview.MultiViewPeer.peerComponentClosed(MultiViewPeer.java:169) at org.netbeans.core.multiview.MultiViewCloneableTopComponent.componentClosed(MultiViewCloneableTopComponent.java:89) at org.openide.windows.WindowManager.componentCloseNotify(WindowManager.java:305) Caused: java.lang.IllegalStateException: [Winsys] TopComponent MVCTC[name=newLoanApplication.xsd *, peer=[model=current=org.netbeans.modules.xml.schema.multiview.SchemaABEViewMultiViewDesc@94b6ff]] throws runtime exception from its componentClosed() method. Repair it! at org.openide.windows.WindowManager.componentCloseNotify(WindowManager.java:307) at org.netbeans.core.windows.WindowManagerImpl.notifyTopComponentClosed(WindowManagerImpl.java:958) at org.netbeans.core.windows.Central.removeModeTopComponent(Central.java:928) at org.netbeans.core.windows.Central.userClosedTopComponent(Central.java:1853) at org.netbeans.core.windows.view.DefaultView.userClosedTopComponent(DefaultView.java:717) at org.netbeans.core.windows.view.ui.TabbedHandler.actionPerformed(TabbedHandler.java:299) at org.netbeans.swing.tabcontrol.TabbedContainer.postActionEvent(TabbedContainer.java:652) at org.netbeans.swing.tabcontrol.TabbedContainerUI.shouldPerformAction(TabbedContainerUI.java:140) at org.netbeans.swing.tabcontrol.plaf.DefaultTabbedContainerUI.access$2700(DefaultTabbedContainerUI.java:87) at org.netbeans.swing.tabcontrol.plaf.DefaultTabbedContainerUI$DisplayerActionListener.actionPerformed(DefaultTabbedContainerUI.java:1236) at org.netbeans.swing.tabcontrol.TabDisplayer.postActionEvent(TabDisplayer.java:521) at org.netbeans.swing.tabcontrol.TabDisplayerUI.shouldPerformAction(TabDisplayerUI.java:154) at org.netbeans.swing.tabcontrol.plaf.BasicTabDisplayerUI.access$1500(BasicTabDisplayerUI.java:94) at org.netbeans.swing.tabcontrol.plaf.BasicTabDisplayerUI$BasicDisplayerMouseListener.performCommand(BasicTabDisplayerUI.java:693) at org.netbeans.swing.tabcontrol.plaf.BasicTabDisplayerUI$BasicDisplayerMouseListener.potentialCommand(BasicTabDisplayerUI.java:678) at org.netbeans.swing.tabcontrol.plaf.BasicTabDisplayerUI$BasicDisplayerMouseListener.mouseReleased(BasicTabDisplayerUI.java:726) at java.awt.AWTEventMulticaster.mouseReleased(AWTEventMulticaster.java:272) at java.awt.AWTEventMulticaster.mouseReleased(AWTEventMulticaster.java:272) at java.awt.Component.processMouseEvent(Component.java:6038) at javax.swing.JComponent.processMouseEvent(JComponent.java:3260) at java.awt.Component.processEvent(Component.java:5803) at java.awt.Container.processEvent(Container.java:2058) at java.awt.Component.dispatchEventImpl(Component.java:4410) at java.awt.Container.dispatchEventImpl(Container.java:2116) at java.awt.Component.dispatchEvent(Component.java:4240) at java.awt.LightweightDispatcher.retargetMouseEvent(Container.java:4322) at java.awt.LightweightDispatcher.processMouseEvent(Container.java:3986) at java.awt.LightweightDispatcher.dispatchEvent(Container.java:3916) at java.awt.Container.dispatchEventImpl(Container.java:2102) at java.awt.Window.dispatchEventImpl(Window.java:2429) at java.awt.Component.dispatchEvent(Component.java:4240) [catch] at java.awt.EventQueue.dispatchEvent(EventQueue.java:599) at java.awt.EventDispatchThread.pumpOneEventForFilters(EventDispatchThread.java:273) at java.awt.EventDispatchThread.pumpEventsForFilter(EventDispatchThread.java:183) at java.awt.EventDispatchThread.pumpEventsForHierarchy(EventDispatchThread.java:173) at java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:168) at java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:160) at java.awt.EventDispatchThread.run(EventDispatchThread.java:121)
Can be reproduced in Schema View but the schema must have been viewed in Design View at least once before closing the schema and discarding changes. Steps: 1. Open a new loan sample schema 2. switch to design view (you don't have to do any actions or even select the pane) 3. switch back to schema view 4. apply design pattern 5. Close schema discard changes 6. Get the same exception 7. on some occurrences when you reopen the schema the changes were saved and not discarded but it is not 100% of the time.
The patch Sam sent me fixes this issue. When the change is checked in we can verify and close this.
Fix integrated: /cvs/xml/schema/abe/src/org/netbeans/modules/xml/schema/abe/ModelEventMediator.java new revision: 1.7; previous revision: 1.6
FIX VERIFIED in Build 200709180000.