Hey Java - Developers

Actually I am confronted with a Problem. I've got a ".apk-File" in one Package of my Application. apk is a kind of a jar File (apk = Android Package). I now want to copy this jar-file out of my Programm onto any other Location at the PC. Normally I would do this by using:

FileInputStream is = new FileInputStream(this.getClass().getResource("/resources/myApp.apk").getFile());

And then write it on the disk with using a FileOutputStream. ... but since an .apk is a kind of a .jar it doesn't work. It just copies the .apk file. but without the containing other files.

any help would be appreciated