What are common mistakes when using ScheduledExecutorService?

What are common mistakes when using ScheduledExecutorService?

Some common mistakes include not shutting down the executor, using a single-threaded executor for heavy tasks, and not handling exceptions properly.

Can you explain why shutting down the executor is important?

Shutting down the executor is crucial to free up resources and prevent memory leaks. If not done, threads may continue running in the background.

What happens if I use a single-threaded executor for heavy tasks?

Using a single-threaded executor for heavy tasks can lead to performance bottlenecks, as tasks will be executed sequentially, delaying overall processing.

How should I handle exceptions in tasks?

You should catch exceptions within the task and log them appropriately. Consider using a custom handler to manage failures gracefully.

Are there any best practices for using ScheduledExecutorService?

Yes, best practices include using a thread pool size that matches your workload, scheduling tasks with appropriate delays, and monitoring task execution.