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Bug 81246 - NPE on closing schema after applying design pattern
Summary: NPE on closing schema after applying design pattern
Status: VERIFIED FIXED
Alias: None
Product: xml
Classification: Unclassified
Component: Schema Tools (show other bugs)
Version: 5.x
Hardware: PC Windows XP
: P1 blocker (vote)
Assignee: Nam Nguyen
URL:
Keywords:
Depends on:
Blocks:
 
Reported: 2006-07-27 12:38 UTC by Andrei Chistiakov
Modified: 2006-07-31 11:27 UTC (History)
4 users (show)

See Also:
Issue Type: DEFECT
Exception Reporter:

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Description Andrei Chistiakov 2006-07-27 12:38:18 UTC 
Reproduced in build 060726.

To reproduce the bug:

- open PO schema;
- switch to source view;
- apply Venetian Blind design pattern;
- close the schema and discard changes.
NPE is thrown:
java.lang.NullPointerException
	at
org.netbeans.modules.xml.xam.dom.AbstractDocumentModel.removeChildComponent(AbstractDocumentModel.java:289)
	at
org.netbeans.modules.xml.xam.dom.AbstractDocumentModel.processSyncUnit(AbstractDocumentModel.java:263)
	at org.netbeans.modules.xml.xdm.xam.XDMListener.endSync(XDMListener.java:80)
	at org.netbeans.modules.xml.xdm.xam.XDMAccess.sync(XDMAccess.java:124)
	at org.netbeans.modules.xml.xam.AbstractModel.sync(AbstractModel.java:221)
	at
org.netbeans.modules.xml.schema.core.SchemaEditorSupport.syncModel(SchemaEditorSupport.java:467)
	at
org.netbeans.modules.xml.schema.core.SchemaEditorSupport$CloseHandler.resolveCloseOperation(SchemaEditorSupport.java:552)
	at org.netbeans.core.multiview.MultiViewPeer.canClose(MultiViewPeer.java:483)
	at
org.netbeans.core.multiview.MultiViewCloneableTopComponent.canClose(MultiViewCloneableTopComponent.java:289)
	at org.netbeans.core.windows.Central.removeModeTopComponent(Central.java:732)
	at org.netbeans.core.windows.Central.userClosedTopComponent(Central.java:1545)
	at
org.netbeans.core.windows.view.DefaultView.userClosedTopComponent(DefaultView.java:730)
	at
org.netbeans.core.windows.view.ui.TabbedHandler.actionPerformed(TabbedHandler.java:298)
	at
org.netbeans.swing.tabcontrol.TabbedContainer.postActionEvent(TabbedContainer.java:664)
	at
org.netbeans.swing.tabcontrol.TabbedContainerUI.shouldPerformAction(TabbedContainerUI.java:140)
	at
org.netbeans.swing.tabcontrol.plaf.DefaultTabbedContainerUI.access$2600(DefaultTabbedContainerUI.java:86)
	at
org.netbeans.swing.tabcontrol.plaf.DefaultTabbedContainerUI$DisplayerActionListener.actionPerformed(DefaultTabbedContainerUI.java:1235)
	at
org.netbeans.swing.tabcontrol.TabDisplayer.postActionEvent(TabDisplayer.java:519)
	at
org.netbeans.swing.tabcontrol.TabDisplayerUI.shouldPerformAction(TabDisplayerUI.java:150)
	at
org.netbeans.swing.tabcontrol.plaf.BasicTabDisplayerUI.access$1500(BasicTabDisplayerUI.java:80)
	at
org.netbeans.swing.tabcontrol.plaf.BasicTabDisplayerUI$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:231)
	at java.awt.AWTEventMulticaster.mouseReleased(AWTEventMulticaster.java:231)
	at java.awt.Component.processMouseEvent(Component.java:5999)
	at javax.swing.JComponent.processMouseEvent(JComponent.java:3240)
	at java.awt.Component.processEvent(Component.java:5764)
	at java.awt.Container.processEvent(Container.java:1984)
	at java.awt.Component.dispatchEventImpl(Component.java:4407)
	at java.awt.Container.dispatchEventImpl(Container.java:2042)
	at java.awt.Component.dispatchEvent(Component.java:4237)
	at java.awt.LightweightDispatcher.retargetMouseEvent(Container.java:4248)
	at java.awt.LightweightDispatcher.processMouseEvent(Container.java:3912)
	at java.awt.LightweightDispatcher.dispatchEvent(Container.java:3842)
	at java.awt.Container.dispatchEventImpl(Container.java:2028)
	at java.awt.Window.dispatchEventImpl(Window.java:2405)
	at java.awt.Component.dispatchEvent(Component.java:4237)
[catch] at java.awt.EventQueue.dispatchEvent(EventQueue.java:600)
	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)
Comment 1 Chris Webster 2006-07-27 17:02:23 UTC 
This may be related to the out of order sync issues you are working on.
Comment 2 Nam Nguyen 2006-07-27 22:26:31 UTC 
Just download latest continuous build bit and verified the test case works fine.
Might have been fixed along with recent design pattern / axi fixes.
The actual NPE is fixed in xam/release55.  Closed as FIXED.
Comment 3 Andrei Chistiakov 2006-07-31 11:27:37 UTC 
Verified in build 060730.