how to catch all uncaught exceptions from different threads in one place during development?

Question

I have a not small multiple threads application with GUI and socket communications. During the development, I found sometimes there are some exceptions are not caught and logged. I have to stare at the console to get them if there is any.

Is there a way to catch those uncaught exceptions from different threads (including EDT) in one place, saying in main(), and log them? I do put a try-catch in main() to catch the Throwable but it doesn't work.

EDIT:

More specific, I have Executors.newCachedThreadPool() with Runnables. I don't want to use Callable in many cases because I don't want to block my calling thread. Then how can I catch exceptions from those Runnables?

And also how can I catch uncaught exception from the Swing EDT?

Answer 1

I would propose to set a custom handler of type UncaughtExceptionHandler for non-caught exceptions using method Thread.setDefaultUncaughtExceptionHandler. This handler will be invoked by JVM when thread is about to terminate due to an uncaught exception.

    Thread.setDefaultUncaughtExceptionHandler((Thread t, Throwable e) -> {
            System.out.println(t + " throws exception: " + e);
    });

UPD:

As for Swing EDT case, I think there is nice answer here.