How can you test if a thread is the only remaining thread in Java?

concurrency, java, multithreading

Solution

This might or might not help, depending on your use-case.

Set your loop thread to daemon mode

setDaemon(true);

and Java will kill it for you if all the non-daemon threads are gone.

Problem

I want a thread in a Java program to loop until all other threads die, and then end the loop. How can I know when my loop thread is the only thread remaining? In my situation, the loop thread will have no reference to any other threads, so I don't think `isAlive()` helps me.

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