DSL of code generation - http://namanmehta.blogspot.com.au/2010/01/use-codemodel-to-generate-java-source.html

jannocessor/ - http://maciejwalkowiak.pl/blog/2012/06/18/java-code-generation-with-jannocessor/

Living in the Matrix with Bytecode Manipulation - https://www.infoq.com/articles/Living-Matrix-Bytecode-Manipulation http://www.infoq.com/cn/articles/Living-Matrix-Bytecode-Manipulation