Josef is the successor to jxpfw. Where jxpfw can be used with JSP pages, josef can be used with JSF and REST services. Josef supports J2EE7 hence it uses jdk 1.8.
To get started, simply select an item form the menu at the left of this page.
Since the trunk is using jdk 1.8 and is currently not used in (commercially available) legacy software, you may want to use josef's stable J2EE6 version instead.