Thread dump 101

Thread dumps, stack traces, pstacks, and pmaps, these are some of my favo...oh er, nevermind.

A while back I was supposed to write up a detailed guide to reading stack traces for training new engineers, but alas my laziness restricted me to a thin article about debugging thread related hangs instead.

Luckily for me (and the trainees), Rajiv Shivane wrote up a very detailed document on reading stack traces. I've mentioned this link before here, but unfortunately not in the proper context.

Thread dumps and stack traces are probably some of the least understood features of java. Why else would I come across developers who have no clue what do do after looking at an Exception stack trace?

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