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:
In CXF versions prior to 2.3.0, the xjc plugins were shaded directly into the big cxf bundle jar. In 2.3.0, they were removed from the jar and are placed individually into the lib directory of the distribution. The xjc plugins are only code generation utilities and not used at all at runtime which is why they were pulled out.
The source code can be checked out anonymously over HTTP by doing:
git clone https://github.com/apache/cxf-xjc-utils.git
git clone https://gitbox.apache.org/repos/asf/cxf-xjc-utils.git
Building is similar to the build instructions for the main CXF project.