Determining Current Call Stack (For Diagnostic Purposes)

tg_43575 0
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For diagnostic purposes I sometimes need to store the call stack that lead to a given state transition (such as granting a lock, committing a transaction, etc.) so that when something goes wrong later I can find out who originally triggered the state transition.

Currently, the only way I am aware of to retrieve the call stack looks like the following code snippet, which I consider terribly ugly:

StackTraceElement[] cause;
try {
  throw new Exception();
} catch (Exception e) {
  cause = e.getStackTrace();
}

Does somebody know of a better way to accomplish this?

stack-trace java
4 Answers

I think you can get the same thing with:

StackTraceElement[] cause = Thread.currentThread().getStackTrace();
bruno_conde_311360

Well, you can improve it slightly by not actually throwing the exception.

Exception ex = new Exception();
ex.fillInStackTrace();
StackTraceElement[] cause = ex.getStackTrace();

Actually, I just checked: the constructor calls fillInStackTrace() already. So you can simplify it to:

StackTraceElement[] cause = new Exception().getStackTrace();

This is actually what Thread.getStackTrace() does if it's called on the current thread, so you might prefer using it instead.

user_135310
user_13694340
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