Re: Informative throws

[Stuart Ballard]

Tom Tromey wrote:
> 
> Eric>     if (str == null || (len = str.length()) == 0)
> Eric>       if (Configuration.EXCEPTION_MESSAGES)
> Eric>         throw new NumberFormatException("string null or empty");
> Eric>       else
> Eric>         throw new NumberFormatException();
> 
> My concerns with this approach are maintainability and readability.  I
> wish it were easily possible to do this via some sort of preprocessing
> step.

There's always:

throw Configuration.EXCEPTION_MESSAGES ?
      new NumberFormatException("string null or empty") :
      new NumberFormatException();

This is, I think, slightly more readable - although I've always been a
fan of the ternary operator, so I'm biased perhaps.

Stuart.