What are the best practices for using CountdownLatch in Java?

What are the best practices for using CountdownLatch in Java?

When using CountdownLatch, ensure to initialize it with the correct count, and avoid using it in a loop.

Can you explain how to properly initialize a CountdownLatch?

You initialize a CountdownLatch by passing the number of events to wait for in its constructor, like this: new CountdownLatch(count);.

What happens if I call await on a CountdownLatch that has already counted down to zero?

If you call await on a CountdownLatch that has already reached zero, it will return immediately without blocking.

Are there any common mistakes to avoid when using CountdownLatch?

Yes, common mistakes include not counting down properly or using it in a way that can lead to deadlocks.