Java Code Analysis and Tracing

I've got an existing Java project that I should modify.. I am familiar with other programming languages but new to Java. **_Short Summary about the Project: _**The project is some sort of a virtual machine that can be used as a plug in to run different problems.. The virtual machine is capable of "running" other problems (codes) in a parallel manner enhancing the efficiency and the performance of that given problem. **_What Needs to be Done (Delivered):_** What I need is for someone to do the following: 1. trace the code of the "machine" and "_comment_" every line of code. 2. produce a simple _document_ explaining the "flow" of the "machine" and how are things connected to each other. **_Deadline:_** I've got a deadline that I should meet for this "analysis task" (around a week from today) **_Available Resources_** The coder that will take care of this problem will be receiving the following: 1. The original code of the machine 2. The code of some problems that have been executed through this machine 3. A report explaining the structure of the "machine" ## Deliverables 1) The original code along with "comments" explaining every line of code 2) A document explaining the flow of the machine. This document should assist me later if I need to modify the code ## Platform 1) Windows XP Professional Edition 2) Borland JBuilder9 Enterprise Edition