The Apache CXF XJC-Utils subproject provides a bunch of utilities for working with JAXB to generate better or more usable code.
Currently, it consists of the following modules:
The source code can be checked out anonymously over HTTP by doing:
git clone https://github.com/apache/cxf-xjc-utils.git
or
git clone https://gitbox.apache.org/repos/asf/cxf-xjc-utils.git
Building is similar to the build instructions for the main CXF project.