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Posted to dev@pivot.apache.org by "Sandro Martini (JIRA)" <ji...@apache.org> on 2014/03/17 17:43:43 UTC
[jira] [Commented] (PIVOT-938) Method getMouseLocation returns null
[ https://issues.apache.org/jira/browse/PIVOT-938?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13938008#comment-13938008 ]
Sandro Martini commented on PIVOT-938:
--------------------------------------
Hi, this is really strange, and could be something related to OS, Java Version, etc ... anyway I think that a check against NPE could be added. Or when null, returning a not null instance with defaults ?
Last, one time that the return object is null you see it always null since then ?
The workaround should be simple, but I can try to track it, but of course I'm not sure that we find the original problem (assuming that we can fix it, because could not be in Pivot code but in lower layers) ... what do you think ?
> Method getMouseLocation returns null
> ------------------------------------
>
> Key: PIVOT-938
> URL: https://issues.apache.org/jira/browse/PIVOT-938
> Project: Pivot
> Issue Type: Bug
> Affects Versions: 2.0.3
> Reporter: Łukasz Hanusiak
> Assignee: Sandro Martini
> Fix For: 2.0.4, 2.1
>
>
> Recently my application crashed with following stack trace:
> ERROR 2014-03-08 18:42:26,265 AWT-EventQueue-0 pl.com.stam.bs3lsm.BarrelS3App - java.lang.NullPointerException
> ERROR 2014-03-08 18:42:26,265 AWT-EventQueue-0 pl.com.stam.bs3lsm.BarrelS3App - at org.apache.pivot.wtk.Component$1.run(Component.java:2771)
> ERROR 2014-03-08 18:42:26,265 AWT-EventQueue-0 pl.com.stam.bs3lsm.BarrelS3App - at org.apache.pivot.wtk.ApplicationContext$QueuedCallback.run(ApplicationContext.java:1607)
> ERROR 2014-03-08 18:42:26,265 AWT-EventQueue-0 pl.com.stam.bs3lsm.BarrelS3App - at java.awt.event.InvocationEvent.dispatch(Unknown Source)
> ERROR 2014-03-08 18:42:26,265 AWT-EventQueue-0 pl.com.stam.bs3lsm.BarrelS3App - at java.awt.EventQueue.dispatchEventImpl(Unknown Source)
> ERROR 2014-03-08 18:42:26,265 AWT-EventQueue-0 pl.com.stam.bs3lsm.BarrelS3App - at java.awt.EventQueue.access$200(Unknown Source)
> ERROR 2014-03-08 18:42:26,265 AWT-EventQueue-0 pl.com.stam.bs3lsm.BarrelS3App - at java.awt.EventQueue$3.run(Unknown Source)
> ERROR 2014-03-08 18:42:26,265 AWT-EventQueue-0 pl.com.stam.bs3lsm.BarrelS3App - at java.awt.EventQueue$3.run(Unknown Source)
> ERROR 2014-03-08 18:42:26,265 AWT-EventQueue-0 pl.com.stam.bs3lsm.BarrelS3App - at java.security.AccessController.doPrivileged(Native Method)
> ERROR 2014-03-08 18:42:26,265 AWT-EventQueue-0 pl.com.stam.bs3lsm.BarrelS3App - at java.security.ProtectionDomain$1.doIntersectionPrivilege(Unknown Source)
> ERROR 2014-03-08 18:42:26,281 AWT-EventQueue-0 pl.com.stam.bs3lsm.BarrelS3App - at java.awt.EventQueue.dispatchEvent(Unknown Source)
> ERROR 2014-03-08 18:42:26,281 AWT-EventQueue-0 pl.com.stam.bs3lsm.BarrelS3App - at java.awt.EventDispatchThread.pumpOneEventForFilters(Unknown Source)
> ERROR 2014-03-08 18:42:26,281 AWT-EventQueue-0 pl.com.stam.bs3lsm.BarrelS3App - at java.awt.EventDispatchThread.pumpEventsForFilter(Unknown Source)
> ERROR 2014-03-08 18:42:26,281 AWT-EventQueue-0 pl.com.stam.bs3lsm.BarrelS3App - at java.awt.EventDispatchThread.pumpEventsForHierarchy(Unknown Source)
> ERROR 2014-03-08 18:42:26,281 AWT-EventQueue-0 pl.com.stam.bs3lsm.BarrelS3App - at java.awt.EventDispatchThread.pumpEvents(Unknown Source)
> ERROR 2014-03-08 18:42:26,281 AWT-EventQueue-0 pl.com.stam.bs3lsm.BarrelS3App - at java.awt.EventDispatchThread.pumpEvents(Unknown Source)
> ERROR 2014-03-08 18:42:26,281 AWT-EventQueue-0 pl.com.stam.bs3lsm.BarrelS3App - at java.awt.EventDispatchThread.run(Unknown Source)
> I traced error to following piece of code:
> triggerTooltipCallback = ApplicationContext.scheduleCallback(new Runnable() {
> @Override
> public void run() {
> Point mouseLocationLocal = getMouseLocation();
> componentTooltipListeners.tooltipTriggered(Component.this,
> mouseLocationLocal.x, mouseLocationLocal.y);
> }
> }, tooltipDelay);
> It seem like value returned from getMouseLocation() is null for some reason. Unfortunately I am not able to reproduce this error. Do you have any ideas how to avoid such problems in future?
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Re: [jira] [Commented] (PIVOT-938) Method getMouseLocation returns
null
Posted by Roger and Beth Whitcomb <Ro...@rbwhitcomb.com>.
I actually think I fixed this already. But, it would be in 2.0.4. This
was PIVOT-927 already.
~Roger
On 3/17/14 9:43 AM, Sandro Martini (JIRA) wrote:
> [ https://issues.apache.org/jira/browse/PIVOT-938?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13938008#comment-13938008 ]
>
> Sandro Martini commented on PIVOT-938:
> --------------------------------------
>
> Hi, this is really strange, and could be something related to OS, Java Version, etc ... anyway I think that a check against NPE could be added. Or when null, returning a not null instance with defaults ?
> Last, one time that the return object is null you see it always null since then ?
>
> The workaround should be simple, but I can try to track it, but of course I'm not sure that we find the original problem (assuming that we can fix it, because could not be in Pivot code but in lower layers) ... what do you think ?
>
>
>> Method getMouseLocation returns null
>> ------------------------------------
>>
>> Key: PIVOT-938
>> URL: https://issues.apache.org/jira/browse/PIVOT-938
>> Project: Pivot
>> Issue Type: Bug
>> Affects Versions: 2.0.3
>> Reporter: Łukasz Hanusiak
>> Assignee: Sandro Martini
>> Fix For: 2.0.4, 2.1
>>
>>
>> Recently my application crashed with following stack trace:
>> ERROR 2014-03-08 18:42:26,265 AWT-EventQueue-0 pl.com.stam.bs3lsm.BarrelS3App - java.lang.NullPointerException
>> ERROR 2014-03-08 18:42:26,265 AWT-EventQueue-0 pl.com.stam.bs3lsm.BarrelS3App - at org.apache.pivot.wtk.Component$1.run(Component.java:2771)
>> ERROR 2014-03-08 18:42:26,265 AWT-EventQueue-0 pl.com.stam.bs3lsm.BarrelS3App - at org.apache.pivot.wtk.ApplicationContext$QueuedCallback.run(ApplicationContext.java:1607)
>> ERROR 2014-03-08 18:42:26,265 AWT-EventQueue-0 pl.com.stam.bs3lsm.BarrelS3App - at java.awt.event.InvocationEvent.dispatch(Unknown Source)
>> ERROR 2014-03-08 18:42:26,265 AWT-EventQueue-0 pl.com.stam.bs3lsm.BarrelS3App - at java.awt.EventQueue.dispatchEventImpl(Unknown Source)
>> ERROR 2014-03-08 18:42:26,265 AWT-EventQueue-0 pl.com.stam.bs3lsm.BarrelS3App - at java.awt.EventQueue.access$200(Unknown Source)
>> ERROR 2014-03-08 18:42:26,265 AWT-EventQueue-0 pl.com.stam.bs3lsm.BarrelS3App - at java.awt.EventQueue$3.run(Unknown Source)
>> ERROR 2014-03-08 18:42:26,265 AWT-EventQueue-0 pl.com.stam.bs3lsm.BarrelS3App - at java.awt.EventQueue$3.run(Unknown Source)
>> ERROR 2014-03-08 18:42:26,265 AWT-EventQueue-0 pl.com.stam.bs3lsm.BarrelS3App - at java.security.AccessController.doPrivileged(Native Method)
>> ERROR 2014-03-08 18:42:26,265 AWT-EventQueue-0 pl.com.stam.bs3lsm.BarrelS3App - at java.security.ProtectionDomain$1.doIntersectionPrivilege(Unknown Source)
>> ERROR 2014-03-08 18:42:26,281 AWT-EventQueue-0 pl.com.stam.bs3lsm.BarrelS3App - at java.awt.EventQueue.dispatchEvent(Unknown Source)
>> ERROR 2014-03-08 18:42:26,281 AWT-EventQueue-0 pl.com.stam.bs3lsm.BarrelS3App - at java.awt.EventDispatchThread.pumpOneEventForFilters(Unknown Source)
>> ERROR 2014-03-08 18:42:26,281 AWT-EventQueue-0 pl.com.stam.bs3lsm.BarrelS3App - at java.awt.EventDispatchThread.pumpEventsForFilter(Unknown Source)
>> ERROR 2014-03-08 18:42:26,281 AWT-EventQueue-0 pl.com.stam.bs3lsm.BarrelS3App - at java.awt.EventDispatchThread.pumpEventsForHierarchy(Unknown Source)
>> ERROR 2014-03-08 18:42:26,281 AWT-EventQueue-0 pl.com.stam.bs3lsm.BarrelS3App - at java.awt.EventDispatchThread.pumpEvents(Unknown Source)
>> ERROR 2014-03-08 18:42:26,281 AWT-EventQueue-0 pl.com.stam.bs3lsm.BarrelS3App - at java.awt.EventDispatchThread.pumpEvents(Unknown Source)
>> ERROR 2014-03-08 18:42:26,281 AWT-EventQueue-0 pl.com.stam.bs3lsm.BarrelS3App - at java.awt.EventDispatchThread.run(Unknown Source)
>> I traced error to following piece of code:
>> triggerTooltipCallback = ApplicationContext.scheduleCallback(new Runnable() {
>> @Override
>> public void run() {
>> Point mouseLocationLocal = getMouseLocation();
>> componentTooltipListeners.tooltipTriggered(Component.this,
>> mouseLocationLocal.x, mouseLocationLocal.y);
>> }
>> }, tooltipDelay);
>> It seem like value returned from getMouseLocation() is null for some reason. Unfortunately I am not able to reproduce this error. Do you have any ideas how to avoid such problems in future?
>
>
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