VisualVM - VisualVM is a visual tool integrating several commandline JDK tools and lightweight profiling...
ANTS Memory Profiler - ANTS Memory Profiler is a .
Eclipse Memory Analyzer - The Eclipse Foundation - home to a global community, the Eclipse IDE, Jakarta EE and over 350 open source projects, including runtimes, tools and frameworks.
Robot Console - Robot Console is a Message and Event Monitoring Software for IBM i thathas automatic message management, resource monitoring, and log monitoring.
YourKit Java Profiler - Java profiler
Deleaker - Deleaker finds memory leaks, GDI leaks, leaks of handles, USER objects and others. Available both as a Visual C++ extension and standalone application.