rr (see http://rr-project.org/) is a widely-used open-source C/C++ debugging tool for Linux that enhances gdb with record/replay capabilities.  PSL is seeking several project students (to work in a team) for spring 2018 to adapt rr to record/replay Java applications on top of the JVM.  rr already works with Java/JVM recording/replaying all system calls.  The goal is to modify rr to record/replay only those system calls specific to the Java application recorded/replayed, not the system calls due to the JVM’s internal mechanisms, to improve performance of Java application recording and replaying. (Eventually we plan to modify rr further, to support mutable replay, but that will be a later semester.) Prospective project students should have strong Java/JVM, C/C++ and Linux skills, and preferably have completed 4115 and 4118.

Contact Prof. Kaiser at kaiser@cs.columbia.edu.