How to detect Memory Leaking Problem in Java

I have a Java multithreading program & I suspect that there is a memory leaking issue in the program. Can someone tell me how can I know how to detect where is the memory leakage in the program?
I have download a few tools like hat, jprobe, optimizeit but not sure how to use it. I am using jdk1.3.0 in HP-UX
Thks

Not so true, you could have a memory leak if you accidental hold on to a resource, or maybe you have threads running that you have no reference to, and those threads hold some resources.
Optimizeit is pretty easy to use. You start you application with Optimize it, so Optimizeit is you JVM so to speak. In optimizeit you can get a list of active objects. If this list grows and grows, you probably have a problem. Let it run for a while, and see which objects are the most present, dubble-click it, and it lets you step down into you methods. This way you can maybe find you leak.
Good luck :)

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I have an app that runs monitors system.
I tested it on the Win 2000 Pro, no prob it takes 8MB top
Once I moved it to Win 2000 Server the ram usage grows constantly, it is over 30 mb now
WHY?
Are there any issues with 2000 server?
HOw to debug it?
I try JProbe , ran app for 2 hours with Profiler and it does not go over 8 MB heap???
Thank you.

JVMs are the same.
How do you limit the heap???
JProbe did not fina anything but after a few hours I
got out of vertual memory error. Java took 300MB I
asumed it was because of JProbe.
Thnks Yarik.To limit the Java heap, you specify these paramaters
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However, given that you ran out of virtual memory, it sounds to me that something else is going on outside the Java heap. The heap limit, by default, is only 64MB, so that can't be it.
What version of Java are you using (use "java -version" to find out for sure).
Chuck

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I use Jdev 10.1.2 . I have a memory leak problem with ADF .
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as I know ADF stored data of view object in http session .
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ADOBE® LIVECYCLE® Output ES2
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Hi Mahir,
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How to detect Memory Leaking Problem in Java

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