geronimo-dev mailing list archives

Site index · List index
Message view « Date » · « Thread »
Top « Date » · « Thread »
From Berin Loritsch <>
Subject Re: [Error handling] NullPointer or IllegalArgument?
Date Thu, 14 Aug 2003 17:17:48 GMT
Alex Blewitt wrote:

> Why bother? RuntimeException has an argument to pass in the exception 
> type to the superclass, in the form of a nested exception (accessed by 
> Throwable.getCause()).
> By your reasoning, every different subtype would have its own class:
> IORuntimeException
> TextRuntimeException
> SQLRuntimeException
>  :
> I've only got one:
> RuntimeException
> :-)

Clarity.  For the same reason that you complained about not being able
to differentiate between an NPE thrown by the system and one thrown by
our code.  You can't differentiate a RuntimeException that holds an
IOException and one that holds a SQLException if all you use are

New exception types don't need to all be thought up in advance.  You can
create them as you find you have need.


"They that give up essential liberty to obtain a little temporary safety
  deserve neither liberty nor safety."
                 - Benjamin Franklin

View raw message