Note this blog is obsolete, see for the current blog If you want to share a composite component between projects you should package it in a JAR.   But how would you do it? Well it is pretty easy. First include the resources in the META-INF/resources directory. E.g. <?xml version='1.0' encoding='UTF-8' ?> <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" ""> <html xmlns="" xmlns:h="" xmlns:cc=""> <body> <cc:interface></cc:interface> <cc:implementation> This is coming from a JAR-packaged composite component! Hurray :) </cc:implementation> </body> </html> And then add a faces-config.xml in the META-INF directory. E.g.<?xml version='1.0' encoding='UTF-8'?> <faces-config version="2.1" xmlns="" xmlns:xsi="" xsi:schemaLocation=""> </faces-config> And then JAR it all up. Note the code for this sample is available as part of the Glassfish samples (see the subversion repository at And that is it. Enjoy!