Re: [platform-core-dev] eclipse.ignoreApp property and "-noExit" argumen

[Pascal Rapicault <Pascal_Rapicault@xxxxxxxxxx>]

Sorry for the confusion Jason. I somewhat
got confused with -console and -noExit.
For an undetermined reason I thought that what was keeping the framework
alive was a waiting loop in the EclipseStarter whereas it is in fact the
console that does it.

Thomas Watson <tjwatson@xxxxxxxxxx>
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11/01/2006 10:31 PM

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Subject	Re: [platform-core-dev] eclipse.ignoreApp property and        "-noExit"        argument can't work together

Pascal, in Jason's scenario there is no defined eclipse application running
(because eclipse.ignoreApp=true) so EclipseStarter.run(String[] args, Runnable
endSplashHandler) will return very fast.  The OSGi Framework will
still be active (because osgi.noShudown=true).  But in this case control
of the main thread is given back to WebStartMain which calls System.exit(result).

I think Jason has a point, maybe WebStartMain should not exit the VM if
osgi.noShudown=true.  Jason, another option may be for you to define
a headless application that does not return until you want the framework
to shutdown and the VM to exit. 

Tom.

"Jason Hao" <jason.hao@xxxxxxxxx>
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11/01/2006 09:04 PM

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Subject	Re: [platform-core-dev] eclipse.ignoreApp property and "-noExit"        argument can't work together

Pascal,

In fact before I sent the mail I debugged the code line by line. It seemed
everything is okay. My activator was called, no exception thrown and the
Main.run() method finished with exit code 0. 

I read the code. The The EclipseStarter.class checks the osgi.noShudown
property. Main.class checks the osgi.noShudown property too. But when the
control is back to WebStartMain.class, it simply calls System.exit() without
checking the osgi.noShudown property. I guess the control should not be
back to the WebStartMain.class until an OSGi application terminates.

I also debugged as an equinox application. I found the Main.main() method
exited after OSGi framework starts. But it left some threads keep running
like "Frame Event Dispatcher", "Start Level Event Dispatcher"
and etc. I didn't saw these threads there when I debugged it as web start
application. Is it normal or abnormal? 

On 11/2/06, Pascal Rapicault <Pascal_Rapicault@xxxxxxxxxx>
wrote: 

>So I need to write a web start launcher by extending the WebStartMain
class but with a different main() method for this issue. Am I right? 
       No, I think the problem is somewhere else. It seems
that your arguments are not being processed correctly or not even passed
to eclipse. Have you check that the arguments are received by eclipse?
Did you check the log? 
       What I was trying to explain in my previous note
is that in a running eclipse, the entity responsible to decide whether
to exit or not is osgi itself not the webstartmain (see EclipseStart.run(,)
and its use of the property osgi.noShutdown.
) So even if you were to modify webstartMain, you would be left with a
process that does nothing since osgi would have shutdown anyway.

Does that make sense? 

PaScaL

"Jason Hao" <jason.hao@xxxxxxxxx >
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11/01/2006 11:09 AM

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Subject	Re: [platform-core-dev] eclipse.ignoreApp property and "-noExit"        argument can't work together

Yes, I know bug #162097.
I walked around it by changing the jar file name.For example, I changed
org.eclipse.osgi_3.2.1.R32x_v20060919.jar to org.eclipse.osgi_3.2.1.R32x.v20060919.jar
.

So I need to write a web start launcher by extending the WebStartMain class
but with a different main() method for this issue. Am I right?

On 11/1/06, Pascal Rapicault <Pascal_Rapicault@xxxxxxxxxx
> wrote: 

The -noExit argument is honored by osgi itself and not by the launchers.
I think you may have another problem that causes the startup sequence to
fail. 
If you are trying to start equinox from eclipse 3.2.1, it might be the
problem bug #162097 

HTH 

PaScaL

"Jason Hao" < jason.hao@xxxxxxxxx>
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11/01/2006 02:53 AM

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Subject	[platform-core-dev] eclipse.ignoreApp property and "-noExit"        argument can't work together

All,

I'm trying Java Web Start deployment with Equinox (Not RCP). In the JNLP
file, I set the property eclipse.ignoreApp=true. Also I appended the "-noExit"
argument to the main class. Just like below.

<application-desc main-class="org.eclipse.core.launcher.WebStartMain">
 <argument>-nosplash</argument>
 <argument>-noExit</argument>
</application-desc>

<resources>
 <!-- Reference to the startup.jar. This does not change --> 
 <jar href="">
 <property 
     name="eclipse.ignoreApp" 
     value="true"/>
...... 


The problem is the argument "-noExit" doesn't work. After check
the code, I notice WebStartMain.main () mehtod calls System.exit(), which
makes the web start application terminated. I wonder if osgi.noShutdown
property should be checked before calling System.exit().


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-- 
Best Regards,

Jason Hao _______________________________________________
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-- 
Best Regards,

Jason Hao _______________________________________________
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