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javaout-of-memoryheap-memoryjvisualvmjhat

Java heapdump analysis find source for the instantiated objects

I am analyzing a heap dump using a jvisualvm. From the report I can see the classes, number of instances and the size occipied.

What I wanted to know is - the source (which class instantiated) of these objects. For a given object, if I could know all the source classes and the number of instances created by each of those classes, I guess it would be easy to identify the bad candidate.

Is this possible at all? If so, is there any tool better than the other to provide such information?

Solution

  • YourKit provides allocation tracing by size and by number. You can search for particular classes created and find hot spots. The evaluation version is free. ;)