For the "version" of a deployment/module I'm currently using the OSGi version class. See deployers-structure-spi/org.jboss.deployers.structure.spi.classloading.helpers.VersionImpl Doing this will make it easier to interoperate with OSGi in the future, but it does introduce a dependency of the OSGi core jar into the bootstrap classloader. Can anybody think of alternate way to do this? The basic problem is if we want multiple Version implementations then they will like have to understand each other to implement: | Comparator<Version>.compareTo(Version other) | View the original post : http://www.jboss.com/index.html?module=bb&op=viewtopic&p=4071188#... Reply to the post : http://www.jboss.com/index.html?module=bb&op=posting&mode=reply&a...