Bug#577785: Use debian/<package>.poms

[Ludovic Claude]

This file is used to specify the locations of the POM files and can also
contain various options for each POM files listed there.

So your lib<package>-java.poms file will contain:

path/to/pom.xml --java-lib --usj-name=mylibrary2

and debian/rules will contain

install/lib$(PACKAGE)-java::
	mh_install

clean::
	mh_clean

That's easy, isn't it?

Ludovic