The focus of my PhD work is on extensible compiler construction. I work with ExtendJ and JastAdd.
ExtendJ is an Open Source extensible Java compiler. It has a home page at extendj.org
Extraction-Based Regression Test Selection (2016, International Conference on Principles and Practices of Programming in Java)
Multitudes of Objects: First Implementation and Case Study for Java (2014, Journal of Object Technology)
Extending the JastAdd Extensible Java Compiler to Java 7 (2013, International Conference on Principles and Practices of Programming in Java)
Master's Thesis: Implementation of Java 7 Features in an Extensible Compiler