How do I handle errors in the Java Executor framework?

How do I handle errors in the Java Executor framework?

In the Java Executor framework, you can handle errors by using a custom ThreadFactory or by implementing the UncaughtExceptionHandler.

Can you give me an example of using UncaughtExceptionHandler?

Sure! You can set an UncaughtExceptionHandler like this:

Thread.setDefaultUncaughtExceptionHandler((thread, throwable) -> {
    System.out.println("Error in thread: " + thread.getName() + " - " + throwable.getMessage());
});

What about handling exceptions in Callable tasks?

For Callable tasks, you can catch exceptions within the call() method and return a specific result or rethrow it.

Is there a way to get the exception from Future?

Yes, you can call future.get() which will throw an ExecutionException if the task threw an exception.