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Bug 136948 - NPE creating nested link between elements on diagram
Summary: NPE creating nested link between elements on diagram
Status: RESOLVED FIXED
Alias: None
Product: uml
Classification: Unclassified
Component: Diagram Class (show other bugs)
Version: 6.x
Hardware: All All
: P2 blocker (vote)
Assignee: issues@uml
URL:
Keywords: REGRESSION
: 136951 137032 (view as bug list)
Depends on:
Blocks: 85904 136119
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Reported: 2008-06-10 20:14 UTC by Peter Lam
Modified: 2008-06-16 10:51 UTC (History)
0 users

See Also:
Issue Type: DEFECT
Exception Reporter:

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Description Peter Lam 2008-06-10 20:14:32 UTC 
build 20080609

- create a class diagram
- create a class and a package
- create a nested link from the class to the package
Result: the following exception popped up.

java.lang.NullPointerException
	at org.netbeans.api.visual.widget.Widget.addChild(Widget.java:235)
	at org.netbeans.api.visual.widget.Widget.addChild(Widget.java:226)
	at org.netbeans.modules.uml.drawingarea.view.DesignerScene.attachEdgeWidget(DesignerScene.java:310)
	at org.netbeans.modules.uml.drawingarea.view.DesignerScene.attachEdgeWidget(DesignerScene.java:89)
	at org.netbeans.api.visual.graph.GraphScene.addEdge(GraphScene.java:152)
	at org.netbeans.modules.uml.diagrams.edges.NestedLinkConnectProvider.createConnection(NestedLinkConnectProvider.java:148)
	at org.netbeans.modules.uml.drawingarea.actions.ConnectAction.mouseReleased(ConnectAction.java:107)
	at org.netbeans.api.visual.widget.SceneComponent$Operator$3.operate(SceneComponent.java:553)
	at org.netbeans.api.visual.widget.SceneComponent.processLocationOperator(SceneComponent.java:268)
	at org.netbeans.api.visual.widget.SceneComponent.mouseReleased(SceneComponent.java:155)
	at java.awt.Component.processMouseEvent(Component.java:6041)
	at javax.swing.JComponent.processMouseEvent(JComponent.java:3265)
	at java.awt.Component.processEvent(Component.java:5806)
	at java.awt.Container.processEvent(Container.java:2058)
	at java.awt.Component.dispatchEventImpl(Component.java:4413)
	at java.awt.Container.dispatchEventImpl(Container.java:2116)
	at java.awt.Component.dispatchEvent(Component.java:4243)
	at org.netbeans.modules.uml.drawingarea.palette.context.PaletteButton$ButtonListener.mouseReleased(PaletteButton.java:316)
	at java.awt.AWTEventMulticaster.mouseReleased(AWTEventMulticaster.java:273)
	at java.awt.Component.processMouseEvent(Component.java:6041)
	at javax.swing.JComponent.processMouseEvent(JComponent.java:3265)
	at java.awt.Component.processEvent(Component.java:5806)
	at java.awt.Container.processEvent(Container.java:2058)
	at java.awt.Component.dispatchEventImpl(Component.java:4413)
	at java.awt.Container.dispatchEventImpl(Container.java:2116)
	at java.awt.Component.dispatchEvent(Component.java:4243)
	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:2440)
	at java.awt.Component.dispatchEvent(Component.java:4243)
[catch] at java.awt.EventQueue.dispatchEvent(EventQueue.java:599)
	at org.netbeans.core.TimableEventQueue.dispatchEvent(TimableEventQueue.java:104)
	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 Joanne Lau 2008-06-11 17:48:46 UTC 
*** Issue 137032 has been marked as a duplicate of this issue. ***
Comment 2 Sergey Petrov 2008-06-11 21:07:04 UTC 
*** Issue 136951 has been marked as a duplicate of this issue. ***
Comment 3 Sergey Petrov 2008-06-16 10:51:40 UTC 
can't reproduce, may be Trey fix it