Rebuilding ANE for Android-x86 with no source code?

Hi,

I've recently taken over an AIR application project from a colleague who has left, and am trying to set up the project for Android-x86 devices. I can build the application fine, but need to add an implementation of my ANE for these apps.

Unfortunately it seems the source code for the extension has been misplaced. I have the current ANE and thought that if I unzip it and extract the original jar file used by Android-ARM, I could rebuild the ANE using this, but although the apk builds and recognises there being an x86 implementation in my descriptor now, when the application starts up it does nothing. My ARM devices are now doing nothing too.

Is there anything else I should be doing? Or am I barking up the wrong tree and it's really not possible to build an ANE without the java source code?

Help!