Question

Is it possible to create my own unchecked exception in Java?

Basically, I’d like to

• Have my own exception class, MyUncheckedException
• That does not make me update all methods that call the method that throws this exception with a flood of own throws

Answer 1

Yes. Extend MyUncheckedException from RuntimeException. However, below is the guideline from documentation

Generally speaking, do not throw a RuntimeException or create a
subclass of RuntimeException simply because you don’t want to be
bothered with specifying the exceptions your methods can throw.

Here’s the bottom line guideline: If a client can reasonably be
expected to recover from an exception, make it a checked exception. If
a client cannot do anything to recover from the exception, make it an
unchecked exception.