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my browser widget is always causing the web kit so's to load [message #1067800]

Wed, 10 July 2013 15:55

Mark Fishman

Messages: 27
Registered: March 2011

Junior Member

Hello, for some strange reason my SWT browser always loads the webkit shared object libraries on my RH 6 machines if they are installed.

I did the following test:

On a Redhat 6.3 machine with the following installed:

1. webkitgtk-1.2.6
2. xulrunner 10.0.5

My SWT 3.8 application had a:

-Dorg.eclipse.browser.DefaultType=mozilla
-Dorg.eclipse.swt.browser.XULRunnerPath=/usr/lib64/xulrunner-2/

in its .ini file and the browser that I create code had SWT.MOZILLA passed in to its constructor list. With this configuration, everything comes up and I can launch the about:config page to prove that I am indeed running xulruuner. However, when I close the application it then crashes. While I was investigating that crash, I noticed that when I pmap'ed the process, I saw a:

/usr/lib64/libwebkit-1.0.so.2.17.8

in its shared library list. Further, when I uninstalled webkitgtk, my crash went away.

I have done a grep through my code and there is no where in that code where I ever instantiate a browser that is not SWT.MOZILLA.

Can anyone tell me what other things might cause the webkit libraries to load and if there is anyway to stop it?

Thanks.

-- Mark

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Re: my browser widget is always causing the web kit so's to load [message #1069786 is a reply to message #1067800]

Tue, 16 July 2013 14:55

Grant Gayed

Messages: 2150
Registered: July 2009

Senior Member

Hi Mark, there should only be a couple of possibilities here, unless
you're seeing an SWT bug:

1. You say that you're setting
-Dorg.eclipse.browser.DefaultType=mozilla, but your property name is
missing its "swt" segment (should be "-Dorg.eclipse.swt.br..."). Was
this just a typo in your question or do you actually have the wrong
property name in your eclipse.ini?

2. If there's another loaded plug-in that creates a Browser with style
SWT.WEBKIT then it will load webkit. Eclipse platform only creates
SWT.NONE-style Browsers, so do you have any other plug-ins that could be
doing this?

Grant

On 7/10/2013 11:55 AM, Mark Fishman wrote:
> Hello, for some strange reason my SWT browser always loads the webkit
> shared object libraries on my RH 6 machines if they are installed.
>
> I did the following test:
>
> On a Redhat 6.3 machine with the following installed:
>
> 1. webkitgtk-1.2.6
> 2. xulrunner 10.0.5
>
> My SWT 3.8 application had a:
>
> -Dorg.eclipse.browser.DefaultType=mozilla
> -Dorg.eclipse.swt.browser.XULRunnerPath=/usr/lib64/xulrunner-2/
>
> in its .ini file and the browser that I create code had SWT.MOZILLA
> passed in to its constructor list. With this configuration, everything
> comes up and I can launch the about:config page to prove that I am
> indeed running xulruuner. However, when I close the application it
> then crashes. While I was investigating that crash, I noticed that when
> I pmap'ed the process, I saw a:
>
> /usr/lib64/libwebkit-1.0.so.2.17.8
>
> in its shared library list. Further, when I uninstalled webkitgtk, my
> crash went away.
>
> I have done a grep through my code and there is no where in that code
> where I ever instantiate a browser that is not SWT.MOZILLA.
> Can anyone tell me what other things might cause the webkit libraries to
> load and if there is anyway to stop it?
>
> Thanks.
>
> -- Mark

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Re: my browser widget is always causing the web kit so's to load [message #1070182 is a reply to message #1069786]

Wed, 17 July 2013 12:08

Mark Fishman

Messages: 27
Registered: March 2011

Junior Member

Hi Grant,

Thanks for replying. The missing swt in the DefaultType specification was a typo when I was writing up this topic for the forum rather than in my actual code.

As for another plugin forcing a SWT.WEBKIT, it is possible but I don't think so. I did a very simple test where I created an application which only had the plugins that get included when you click the include required plugins plus one simple plugin that I created. The one plugin had a single view with a browser widget in it. The browser widget had a SWT.NONE in its constructor and I specified the -Dorg.eclipse.swt.browser.DefaultType=mozilla -Dorg.eclipse.swt.browser.XULRunnerPath=/usr/lib64/xulrunner-2/

flags. When I did a pmap on the launched java process, I still saw /usr/lib64/libwebkit-1.0.so.2.17.8 having been loaded in. I also saw the same thing when I ran it passing SWT.MOZILLA to the browser.

It should be noted though that I did not get a crash when I closed my test application.

-- Mark

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