What is a good free tool for investigating unintentional object retention in Java?

• Java

My multithreaded Java program crashed because it ran out of heap space. I don't think it should Assuming that criminals are unintentional object retention, what is a good free tool to investigate what objects are unintentionally retained?

My IDE is eclipse

Solution

The following is a list of open source tools you can see: http://java-source.net/open-source/profilers. Of course, jmap and jconsole are also feasible solutions

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