Re: Image resizing in app -> Sudden death
Re: Image resizing in app -> Sudden death
- Subject: Re: Image resizing in app -> Sudden death
- From: Mike Schrag <email@hidden>
- Date: Thu, 12 May 2005 09:08:06 -0400
I ran into this same problem when using AWT-referencing-code (which
fires up Toolkit). It basically results in a total VM crash because
it fails inside of a native method. Annoying java.awt.headless is
supposed to exist to prevent this problem, but for whatever reason it
didn't behave as expected. Ultimately I never got the performance
out of ImageIO that I needed anyway, so I switched to custom JNI
using the ImageMagick API's (which, incidentally, was between 10 and
100x faster performing some of the same operations as ImageIO). It
was REALLY frustrating -- I know your pain. At the end of my case, I
only depended on java.awt.Dimension (which ALSO fires up Toolkit),
which I just wrote my own version of. It wasn't cheaper (time-wise)
to go this route then to try and diagnose exactly what was going on
under the covers in the VM. I'm fairly confident there IS a
workaround, because I would be shocked that it just doesn't work at
all, but it wasn't immediately obvious.
One option you have, unless you're TRULY headless, is to launch as
root instead of appserver, which can then always get to the
windowserver. But that, of course, brings with it other problems.
ms
On May 12, 2005, at 7:46 AM, Hugi Thordarson wrote:
Good morning everyone!
I have a problem with one of my apps. When this application tries
to perform image resizing, it dies suddenly and horribly, without
giving any error messages in the application log (with debugging
enabled). The application instance immediately terminates and then
restarts.
The app is running as the "appserver" user and the -
Djava.awt.headless property is set to true. Running WO 5.2.3 on OS
X server 10.3.8. Classes involved in the resize operation inclide
BufferedImage and ImageIO.
The image resizing code resides in a framework and is running fine
on other servers, so I really don't know what to think. I just
wanted to see if anyone had experienced something similar, since I
suspect this might become a long winded bug hunt.
Cheers,
Hugi
// Hugi Thordarson
// Atvinnulaus
// http://www.karlmenn.is/
_______________________________________________
Do not post admin requests to the list. They will be ignored.
Webobjects-dev mailing list (email@hidden)
Help/Unsubscribe/Update your Subscription:
40mdimension.com
This email sent to email@hidden
_______________________________________________
Do not post admin requests to the list. They will be ignored.
Webobjects-dev mailing list (email@hidden)
Help/Unsubscribe/Update your Subscription:
This email sent to email@hidden