Java Style: Properly handling exceptions

Question

I keep getting stuck conceptually on deciding an Exception-handling structure for my project.

Suppose you have, as an example:

public abstract class          


        

Answer 1

If you're not explicitly stating that read() can throw an exception, then you'll surprise developers when it does.

In your particular case I'd catch the underlying exceptions and rethrow them as a new exception class DataException or DataReadException.