The main problem with working with classpools is that there is no interface: classpools are classes. I have moved the classes that form the basic architecture to a org.jboss.classpool.spi package, but classes that don't belong to that package have references to package-protected constructors of the spi classes. Ales, how would you handle that? Is there a trick to workaround that or I'll have to make those constructors public? View the original post : http://www.jboss.org/index.html?module=bb&op=viewtopic&p=4249644#... Reply to the post : http://www.jboss.org/index.html?module=bb&op=posting&mode=reply&a...