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javadebuggingjdijpda

Java Access to Local Variable Names

I'm currently writing a program in which I would like to access the variable names of local variables during execution of a program and pass them off externally. I'm aware that Java will dump local variable names during compilation unless compiled in debug mode.

After looking around some, it seems that JDI/JPDA is the way to go for this kind of work. Assuming ref refers to a ThreadReference, the following is what I have thus far:

ref.suspend();
StackFrame currentFrame = ref.frame(0);
List<LocalVariable> vars = currentFrame.visibleVariables();
ref.resume();

Two questions:

  1. Am I on the right track, or is there a better way to do this?
  2. How do I acquire the ThreadReference to set to ref? LocatableEvent seems to be what I need, but can anyone provide an example on how to use it?

Many thanks in advance!

Solution

  • Not a lot of people have experience with this stuff.

    Look elsewhere for an answer. I had links to code but they are no longer. Cannot delete this answer because it was accepted answer.