Remember JVM state before executing a specific instruction

Question

I am working on a testing project using mutating technique. My project requires to manipulate a Java classfile and re-execute the classfile multiple times for testing. My implementation need to re-execute the whole system again after one manipulation, and that is not efficient. I am wondering whether I can save the JVM state right before executing a desired instruction in the classfile, so that I can start from that state after each manipulation.

Thank you.

Answer 1

Based on your description, I don't believe you need to maintain the 'JVM state'. You can mantain a reference to the original class file and re-run that.

Answer 2

Apache Javaflow does that... sort of.

You could save a continuation right before your test. And then continue from there.

I don't know exactly what you need to test, or if it is exactly what you were looking for (in Feb 2011 :S) but at least the Javaflow codebase might be "inspiring".

I neither know what's the status of the project. You should check if it's currently being maintained.