why did I get IllegalThreadStateException after calling this.interrupt()?

Question

try {
    this.interrupt();
} catch (IllegalThreadStateException e) {
    e.printStackTrace();
}

I found out that an IllegalThreadStateException was thrown by putting print statement, no stack trace was printed. I have tried searching existing threads about Thread.interrupt() and IllegalThreadStateException, but didn't get much out of them. I am using CDLC 1.1, if it helps. thank you very much!!

Answer 1

CLDC 1.1 is supposed to support interrupt(), but CLDC 1.0 didn't. Maybe your particular implementation didn't feel like adding this support, and fakes it by throwing a runtime exception.

Answer 2

If no stack trace is printed, it sounds like there error is happening (and being handled) elsewhere. Can you step through the code in a debugger and see if that interrupt is triggering another thread to have a problem? It would have to occur with the process of executing interrupt().

In our IDE, I would put a breakpoint on that line, hit F5 to step inside the method call, then continue stepping inside until I found the problem. Along the way, if I get to a point where there is no source code I would download the related source jar file and point the debugger to it (which sounds involved but only takes about 2 minutes).

Hope that helps in some way,

-gMale