Is there anything like .NET's NotImplementedException in Java?

Question

Is there anything like .NET's `NotImplementedException` in Java?

Answer 1

There are a few options to achieve the same in Java:

1. java.lang.UnsupportedOperationException: This class is included comes with the JDK. It extends RuntimeException therefore it is unchecked exception, you do not have to catch or add throws clauses to your methods.
2. org.apache.commons.lang3.NotImplementedException: If you use Apache's Commons Lang library this class is your best bet. It is also unchecked exception.
3. Create your own NotImplementedException class: you could simply just extend RuntimeException as follows:

public class NotImplementedException extends RuntimeException {

public NotImplementedException() {}

}