I am trying to analyse a heap dump taken from a java process that ran into memory issues. The dump was taken using jmap. I am using jhat on the dump file - I am getting java.io.IOException: Unrec...

How do you find a memory leak in Java (using, for example, JHat)? I have tried to load the heap dump up in JHat to take a basic look. However, I do not understand how I am supposed to be able to fi...

In my work, we are running into a difficult to reproduce OOM issue. Or, more accurately, it is very easy to reproduce on one system, making that system unusable, but difficult to reproduce anywhere...

I have a heap dump from a (formerly) running Java process. At the time the dump was taken, the process was hung communicating with another server. I would like to be able to reconstruct the exact r...

I have a java program which keeps calling java.util.zip to compress/decompress data. It runs out of memory within a few seconds. I had a memory dump with jmap and I'm viewing it with jhat. Finalize...

I have a 6.5GB Hprof file that was dumped by a 64-bit JVM using the -XX:-HeapDumpOnOutOfMemoryError option. I have it sitting on a 16GB 64-bit machine, and am trying to get it into jhat, but it kee...

We got a memory error in our EA and we used -XX:+HeapDumpOnOutOfMemoryError -XX:HeapDumpPath=/path/to/some/dir to dump the heap at the time of OOM. We had a heap memory of 12GB and perm gen of 256...

In a nutshell I have a program that is gradually using more and more memory over time. I am using jmap and jhat to try and diagnose it but am still not quite there. Background The program is a l...

I am trying out a tool jhat here to test my java memory usage. It reads in a heap dump file and prints out information as html. However, the tables shows as follows: Class Instance Count Total Siz...