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Bug 144068 - NPE while opening node in explorer
Summary: NPE while opening node in explorer
Status: RESOLVED DUPLICATE of bug 140423
Alias: None
Product: platform
Classification: Unclassified
Component: -- Other -- (show other bugs)
Version: 6.x
Hardware: PC Linux
: P3 blocker with 1 vote (vote)
Assignee: issues@platform
URL:
Keywords:
Depends on:
Blocks:
 
Reported: 2008-08-15 13:53 UTC by mgoe
Modified: 2008-08-18 09:16 UTC (History)
0 users

See Also:
Issue Type: DEFECT
Exception Reporter:

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Description mgoe 2008-08-15 13:53:45 UTC 
In an application based on the netbeans platform (6.5_m1-200807040101 and 6.5beta-200808111757) I get an NPE from time 
to time while opening a node in the explorer. The callstack does not contain own code.

java.lang.NullPointerException
	at javax.swing.plaf.basic.BasicTreeUI.ensureRowsAreVisible(BasicTreeUI.java:1886)
	at javax.swing.plaf.basic.BasicTreeUI.toggleExpandState(BasicTreeUI.java:2213)
	at javax.swing.plaf.basic.BasicTreeUI.handleExpandControlClick(BasicTreeUI.java:2196)
	at javax.swing.plaf.basic.BasicTreeUI.checkForClickInExpandControl(BasicTreeUI.java:2154)
	at javax.swing.plaf.basic.BasicTreeUI$Handler.handleSelection(BasicTreeUI.java:3516)
	at javax.swing.plaf.basic.BasicTreeUI$Handler.mousePressedDND(BasicTreeUI.java:3502)
	at javax.swing.plaf.basic.BasicTreeUI$Handler.mousePressed(BasicTreeUI.java:3461)
	at java.awt.AWTEventMulticaster.mousePressed(AWTEventMulticaster.java:262)
	at java.awt.AWTEventMulticaster.mousePressed(AWTEventMulticaster.java:262)
	at java.awt.AWTEventMulticaster.mousePressed(AWTEventMulticaster.java:262)
	at java.awt.AWTEventMulticaster.mousePressed(AWTEventMulticaster.java:262)
	at java.awt.AWTEventMulticaster.mousePressed(AWTEventMulticaster.java:262)
	at java.awt.Component.processMouseEvent(Component.java:6131)
	at javax.swing.JComponent.processMouseEvent(JComponent.java:3265)
	at java.awt.Component.processEvent(Component.java:5899)
	at java.awt.Container.processEvent(Container.java:2023)
	at java.awt.Component.dispatchEventImpl(Component.java:4501)
	at java.awt.Container.dispatchEventImpl(Container.java:2081)
	at java.awt.Component.dispatchEvent(Component.java:4331)
	at java.awt.LightweightDispatcher.retargetMouseEvent(Container.java:4301)
	at java.awt.LightweightDispatcher.processMouseEvent(Container.java:3962)
	at java.awt.LightweightDispatcher.dispatchEvent(Container.java:3895)
	at java.awt.Container.dispatchEventImpl(Container.java:2067)
	at java.awt.Window.dispatchEventImpl(Window.java:2458)
	at java.awt.Component.dispatchEvent(Component.java:4331)
[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:269)
	at java.awt.EventDispatchThread.pumpEventsForFilter(EventDispatchThread.java:184)
	at java.awt.EventDispatchThread.pumpEventsForHierarchy(EventDispatchThread.java:174)
	at java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:169)
	at java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:161)
	at java.awt.EventDispatchThread.run(EventDispatchThread.java:122)
Comment 1 Petr Chytil 2008-08-18 09:16:13 UTC 

*** This issue has been marked as a duplicate of 140423 ***