Orbeon Forms XForms Engine not work properly with Java Applications

Hi all,

I'm testing Orbeon with a separate Java Application.
 
I've downloaded Orbeon 3.9-PE and i've followed the instruction of the Developer Guide, to Using Orbeon XForms Engine with Java Application.

In My Java App, i've copied the orbeon-xforms-filter.jar, included in the Orbeon 3.9-PE Package, and i've modified web.xml to filter the "/xforms/*" url-pattern. Also i've configured My App to use crossContext in tomcat. Then I've copied the xform "guess-the-number" under my "xforms" folder.

All configuration seems ok, but when I try to access my jsp at the url http://localhost/myapp/xforms/guess-the-number, nothing happens. With firebug, I've found 4 error, it looks like that the Orbeon filter try to access at some resources in a wrong mode. This is an example of the wrong URL:

http://localhost/orbeon-PE/orbeon-PE/3.9.1.201202031753/ops/images/xforms/section-opened.png

I've tried to use a different version of orbeon-xforms-filter.jar: with 3.8 version nothing change, but with 3.7 version, the xform "guess-the-number" works well because the orbeon filter access at the same resources in a different mode. This is an example of the right URL:

http://localhost/myapp/orbeon-PE/3.9.1.201202031753/ops/images/xforms/section-opened.png

Is it a bug? or Have i miss something in my configuration?!?!

Thanks in advance and sorry for my imperfect english

Marco