We developed a debugger (RDB) for Jikes RVM and would like to have it integrated in Jikes RVM project code base.
RDB is a Java/Swing application. It is built along with Jikes RVM and relies on Jikes RVM proper source code to interpret the internals of a running Jikes RVM instance. The code sits in tools/ subdirectory and requires minimal changes to the main RVM source code. RDB is currently maintained in a separate repository.
Here's a link to RDB page we maintain http://sape.inf.usi.ch/rdb
Mac OS X