Helllo all, I am glad to notify you that I have published the new very deep refactored version of my old JCP preprocessor for Java, nowadays it supports ANT and Maven but also can be called through CLI. I have used the product for dozens of projects as a code generator when I was involved in mobile development. It is a multi-pass preprocessor with loop support, it saves its directives in comment lines so you can use it with any popular IDE. It is an open source project.
http://code.google.com/p/java-comment-preprocessor/
