Can you print out what line in the code and what method a running thread is in, from within a program – without using some monitoring software like visualvm? Do you have to extend Thread?
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Can you print out what line in the code and what method a running thread is in, from within a program – without using some monitoring software like visualvm? Do you have to extend Thread?
You can do this with a call to
Thread.getStackTrace(). It returns an array ofStackTraceElement, which represents the current StackTrace. It will be helpful to remember that the top couple elements are going to be methods inThread, so the ones that you are likely interested in will be down the array a bit.Of course you need to get a hold of the
Threadthat is currently running…