You can only manipulate on ShrinkWrap(open/uncompressed) archives when they are ArchiveAssets. Some times it can be useful to manipulate an existing(closed/compressed) nested archive. Add something to a library added by 'someone' else... We should support to import/mount a already added compressed library.

[code]
WebArchive war = ShrinkWrap.create(WebArchive.class)
.addLibrary(new File("blag.jar"))

JavaArchive jar = war.as(Importer.class)
.import(
JavaArchive.class,
Archivepaths.create("lib/blag.jar"))

[code]