See the problem described in this comment on
Solution proposal 1:
Every beans.xml gets an id:
Then it's possible to depend on other beans.xml files:
So when guvnor depends on security, it can automatically, transitively inherit solder (without depending on it directly):
So when guvnor upgrades to the next version of seam-security, it doesn't need to worry if seam-security still uses seam-solder and whether or not it requires any new bean sets (such as seam-international starting from seam-security 1.2).