Tuesday, December 3, 2013

Re: Error using IMAGE/IO in a Servlet

So, for completeness sake, I will let future Googlers know how I got around this problem. No matter which way I changed the Context Listener to and from the Jetty to Sun's and back again, I couldn't get the java advanced image library and RPCs working at the same time. So, I tried something a bit more drastic. 

I created a standalone java program that takes in the request of the image that needs to be loaded via a Socket and returns a proprietary VERSION of that image. The object returned doesn't need JAI. So, I no longer switch contexts but on the server side I create a Client that creates a socket connection, and requests the image and hten returns the image as before to the website. 

Since the JAI is only accessed on a standalone process that gets kicked off in the regular JVM, it works great! Super huge work around, but the good thing is it WORKS. I get my imagery and RPC functionality. I can move on. 

The best thing would to remove JAI entirely from the server, but I can't do that right now. 


On Tue, Nov 19, 2013 at 1:53 PM, Sean Loughran <sloughran@gmail.com> wrote:
Hi Jens,

So I tried putting it back after calling the ImageIO library and that didn't help the ImageIO problem. And I just confirmed even copying and pasting your code (thank you for providing that by the way) also cause the ImageIO stuff not to work. I get my usual error.

Grrrrrrrrrrrrrrr. This stuff is pretty frustrating.

-Sean


On Mon, Nov 18, 2013 at 3:04 PM, Jens <jens.nehlmeier@gmail.com> wrote:
Maybe you missed copying it, but you never set tcl back. I never had the issue you are describing.

Thats how I do it normally: https://gist.github.com/jnehlmeier/7534390

-- J.

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