Debug memory issue in existing Processing code

I have an existing codebase in Processing (java) that randomly selects and animates background images. I am using version 2.0b8 of the Processing IDE on Mac OS X 10.8.3 The solution is throwing an OutOfMemory exception when run for only a few cycles. I need the memory leak identified and the code re-engineered to be able to run continuously for an extended period (7 days). I would like to know how to use the utilities, etc on my MacBook Pro running OS X 10.8.3 to diagnose this problem. I like attention to detail, so you must include the string "[didg]" as the first line in your response. Bids to perform the work in any language other than Processing will not be considered. All the best!