This directory contains sources and compiled classes used by jdwp-* scripts. All classes must have run() method defined which is expected to return a string. Method run() can have arguments, but then the scripts would need to be modified to add those arguments when class is injected. As JDWPExecCmd has a run() method which accepts a string as its argument, see jdwp-exec script for details of passing the arguments to a method via JDWP. Arguments need to be tagged with their respective type. For other tags see http://docs.oracle.com/javase/6/docs/technotes/guides/jni/spec/types.html#wp9502 . Example from jdwp-exec: local cmdID status,cmdID = jdwp.createString(socket,0,cmd) local runArgs = string.pack(">B I8", 0x4c, cmdID) -- 0x4c is object type tag -- invoke run method local result status, result = jdwp.invokeObjectMethod(socket,0,injectedClass.instance,injectedClass.thread,injectedClass.id,runMethodID,1,runArgs) To compile these sources: # javac *.java