There is a free memory/garbace collector analyzer jvmstat ver. 3 that you can download from Sun:
http://java.sun.com/performance/jvmstat/ Another great tool that has free trial is JVM Optimizer: http://www.arcturustech.com/jvm_optimizer.html -- Thank you, Edmon Begoli http://blogs.ittoolbox.com/eai/software
