How to find source of Timer thread?

Question

I have a big project that also use many libraries. With jstack I found that there are threads like:

Timer-2, Timer-3, Timer-4....

and all that jstack can me display is:

java.lang.Thread.State: TIMED_WAITING (on object monitor)
    at java.lang.Object.wait(Native Method)
    at java.util.TimerThread.mainLoop(Unknown Source)
    - locked <0x1a013c24> (a java.util.TaskQueue)
    at java.util.TimerThread.run(Unknown Source)

Is it possible to find a class where these threads where created?

Answer 1

The Timer threads are created by the java.util.Timer.

If you are able to use the debugger you should be able to set a breakpoint in the Timer constructors and find out the source.