While working with ShrinkWrap on my tests project I have come to need of automatic creation of default MANIFEST.MF file in META-INF directory.
I would like to have it for every archive which extends ManifestContainer<?>.

So, it would work the best when it will be created at the creation of archive and in case of user add his own the default one will be overwritten.
Content of the default MANIFEST.MF could be as simple as this:
Manifest-Version: 1.0
Created-By: 1.0.0 (ShrinkWrap)