What are the symptoms of the memory usage problem?
As suggested in another thread, one option is to change your IS to use the Oracle/WebLogic/BEA JRockit JVM which will allow you to use the JRockit Mission Control tools to see inside the black box.
You can also take thread dumps at specified intervals during a period in which you think a leak is occurring and manually compare the object instances and resource consumption. Tedious, but this won’t require additional tools… only expertise in reading the dumps from the JVM in use.
Mark
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