java - OutOfMemory Exception - how does VisualVM help locate the memory leak with heapdump file? -

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i've been testing webapp locally on pc , monitoring visualvm. started using jmeter, suggested should load testing since suspected have slow memory leak somewhere.

today webapp threw outofmemory exception. had heapdumponoutofmemoryerror , heapdumppath params set in case ever happened. heap dump file generated.

i opened file (java_pid2760.hprof) in visualvm, , honestly, don't understand how i'm supposed able pinpoint culprit of memory leak...

how use visualvm analyze heap dump , find class/instance generating memory leak?

here's couple of links found helpful when debugging memory leaks:

http://olex.openlogic.com/wazi/2009/how-to-fix-memory-leaks-in-java/

http://www.ibm.com/developerworks/rational/library/05/0816_guptapalanki/

edit:

you might want try: http://rejeev.blogspot.com/2009/04/analyzing-memory-leak-in-java.html


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