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Graceful shutdown [message #133922]

Fri, 22 May 2009 09:47

Eclipse User

Originally posted by: markus.wolf.nmmn.com

Hi,

I try to shutdown our RWT application with disposing the base shell.
I think the eventloop should be left then and the application should
terminate.
But when the shell is disposed I get this exception:

15:44:59.995|ERROR||
org.apache.juli.logging.DirectJDKLog |
Servlet.service() for servlet rapServlet threw exception
java.lang.NullPointerException
at org.eclipse.rwt.internal.lifecycle.DisplayUtil.getLCA
(DisplayUtil.java:31) [org.eclipse.rap.rwt-1.2.0-M7.jar:na]
at org.eclipse.rwt.internal.lifecycle.Render.execute
(Render.java:27) [org.eclipse.rap.rwt-1.2.0-M7.jar:na]
at
org.eclipse.rwt.internal.lifecycle.RWTLifeCycle.continueLife Cycle
(RWTLifeCycle.java:209) [org.eclipse.rap.rwt-1.2.0-M7.jar:na]
at org.eclipse.rwt.internal.lifecycle.RWTLifeCycle
$UIThreadController.run(RWTLifeCycle.java:120) [org.eclipse.rap.rwt-1.2.0-
M7.jar:na]
at java.lang.Thread.run(Thread.java:619) [na:1.6.0_13]

Any idea on how to do a graceful shutdown? Or am I just missing something.

Thanks
Markus Wolf
--
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Re: Graceful shutdown [message #133935 is a reply to message #133922]

Fri, 22 May 2009 14:22

Ivan Furnadjiev
Messages: 1425
Registered: July 2009

Senior Member

Hi Markus,

it seems that you ran into this bug:
262089: [Display] dispose() causes NPE
https://bugs.eclipse.org/bugs/show_bug.cgi?id=262089

Best,
Ivan

Markus Wolf wrote:
> Hi,
>
> I try to shutdown our RWT application with disposing the base shell.
> I think the eventloop should be left then and the application should
> terminate.
> But when the shell is disposed I get this exception:
>
> 15:44:59.995|ERROR||
> org.apache.juli.logging.DirectJDKLog |
> Servlet.service() for servlet rapServlet threw exception
> java.lang.NullPointerException
> at org.eclipse.rwt.internal.lifecycle.DisplayUtil.getLCA
> (DisplayUtil.java:31) [org.eclipse.rap.rwt-1.2.0-M7.jar:na]
> at org.eclipse.rwt.internal.lifecycle.Render.execute
> (Render.java:27) [org.eclipse.rap.rwt-1.2.0-M7.jar:na]
> at
> org.eclipse.rwt.internal.lifecycle.RWTLifeCycle.continueLife Cycle
> (RWTLifeCycle.java:209) [org.eclipse.rap.rwt-1.2.0-M7.jar:na]
> at org.eclipse.rwt.internal.lifecycle.RWTLifeCycle
> $UIThreadController.run(RWTLifeCycle.java:120) [org.eclipse.rap.rwt-1.2.0-
> M7.jar:na]
> at java.lang.Thread.run(Thread.java:619) [na:1.6.0_13]
>
> Any idea on how to do a graceful shutdown? Or am I just missing something.
>
> Thanks
> Markus Wolf
>

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