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https://issues.apache.org/jira/browse/PIVOT-927?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13850852#comment-13850852
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Roger Whitcomb commented on PIVOT-927:
--------------------------------------
Ping: Any update on this? I would like to commit this fix, but haven't heard
if it solves your problem. Thanks.
> Unexpected NPE
> --------------
>
> Key: PIVOT-927
> URL: https://issues.apache.org/jira/browse/PIVOT-927
> Project: Pivot
> Issue Type: Question
> Affects Versions: 2.0.3
> Reporter: Łukasz Hanusiak
> Assignee: Roger Whitcomb
> Fix For: 2.0.4, 2.1
>
> Attachments: pivot-wtk-2.0.4.jar
>
>
> After upgrading to pivot 2.0.3 my application randomly becomes unresponsive
> after throwing NPE with following trace:
> java.lang.NullPointerException
> at
> org.apache.pivot.wtk.ApplicationContext$DisplayHost.processMouseMotionEvent(ApplicationContext.java:1132)
>
> at java.awt.Component.processEvent(Unknown Source)
> at
> org.apache.pivot.wtk.ApplicationContext$DisplayHost.processEvent(ApplicationContext.java:793)
>
> at java.awt.Component.dispatchEventImpl(Unknown Source)
> at java.awt.Component.dispatchEvent(Unknown Source)
> at java.awt.LightweightDispatcher.retargetMouseEvent(Unknown Source)
> at java.awt.LightweightDispatcher.processMouseEvent(Unknown Source)
> at java.awt.LightweightDispatcher.dispatchEvent(Unknown Source)
> at java.awt.Container.dispatchEventImpl(Unknown Source)
> at java.awt.Window.dispatchEventImpl(Unknown Source)
> at java.awt.Component.dispatchEvent(Unknown Source)
> at java.awt.EventQueue.dispatchEventImpl(Unknown Source)
> at java.awt.EventQueue.access$400(Unknown Source)
> at java.awt.EventQueue$2.run(Unknown Source)
> at java.awt.EventQueue$2.run(Unknown Source)
> at java.security.AccessController.doPrivileged(Native Method)
> at java.security.AccessControlContext$1.doIntersectionPrivilege(Unknown
> Source)
> at java.security.AccessControlContext$1.doIntersectionPrivilege(Unknown
> Source)
> at java.awt.EventQueue$3.run(Unknown Source)
> at java.awt.EventQueue$3.run(Unknown Source)
> at java.security.AccessController.doPrivileged(Native Method)
> at java.security.AccessControlContext$1.doIntersectionPrivilege(Unknown
> Source)
> at java.awt.EventQueue.dispatchEvent(Unknown Source)
> at java.awt.EventDispatchThread.pumpOneEventForFilters(Unknown Source)
> at java.awt.EventDispatchThread.pumpEventsForFilter(Unknown Source)
> at java.awt.EventDispatchThread.pumpEventsForHierarchy(Unknown Source)
> at java.awt.EventDispatchThread.pumpEvents(Unknown Source)
> at java.awt.EventDispatchThread.pumpEvents(Unknown Source)
> at java.awt.EventDispatchThread.run(Unknown Source)
> After mentioned exception occurs user is unable to use any element of UI.
> Only application restart helps solve this problem. Even more confusing is
> fact that problem sometimes occurs after few minutes and sometimes after few
> hours or even days.
> Can anybody give me some pointers how to workaround / fix this situation?
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