JOP - Open Source Java Profiler JOP is a 100% pure Java real time graphical interactive profiler. No native library or executable is required. It provides views with: * tree line and tree method for time analysis * tree callee to identify bottlenecks in performance, * followed by the allocation object location in the tree Called to find leaks memory * Memory allocation and monitor objects. JOP has a very low overhead: a profile request is running about 1.5 to 3 times slower than its standard speed (highly dependent on the code). It is derived from the bytecode instrumentation profiler Jip.