exploded directory is not populated after compiling module Follow

Got stuck. My application has three modules, 2 web-modules and one ejb-module.

After compiling any of my three app-modules neither of the corresponding exploded directories is populated.

Also the package-view of the ejb-module is not extensible. The web-modules instead are extensible.

I have attached ipr-file and iml-files.

Any idea, what could be wrong here? I appreciate any hint.

Regards, Riccardo