Need method to exclude all child dependencies when creating a jar

With xfire, we have 10 different modules. We want to create an "xfire-all" jar that has all the xfire modules bundled. We can do this with the assembly plugin right now by creating a pom with all our modules in it. However, when it includes all the child dependencies. To exclude child dependencies you have to listen them individually. XFire probably has around 50+ dependencies spread out over the build. Maintaining this exclude list would be too much work, so we'd like a way to simply say - build a jar composed of these 10 jars, but none of their deps.