@TechReport{Mohnen:AIB-02-09,
  author =	 "M. Mohnen",
  title =	 "{Interfaces with Default Implementations in Java}",
  number =	 "AIB-2002-09",
  year =	 "2002",
  institution =	 "{RWTH Aachen}",
  abstract =	 "{With the interface construct, Java features a concept with high
                  potential for producing reusable code: Java's interfaces allow the
                  definition of class properties independently of class
                  inheritance. We propose an extension of Java for providing default
                  implementations in interfaces. Default implementations are useful
                  since they reduce the effort required to implement an
                  interface. They are especially interesting if there is a canonical
                  way to implement methods of the interface in terms of some other
                  methods. In these cases, an implementation can be obtained by
                  implementing the base methods and use the default implementations
                  of the other methods. We discuss the rationale for our design and
                  show that the extension can be implemented both efficiently and
                  conservatively, i.e. without modification of the Java virtual
                  machine. }",
  month =	 apr,
  url =		 "http://aib.informatik.rwth-aachen.de/2002/2002-09.ps.gz",
}