Thanks for continuing to think of the best design for this, Don.
On 1/12/11 12:10 AM, Don Clugston wrote:
How about this rule:
---
If all collateral exceptions are derived from Exception, the 'boss' or
Master Exception is the first exception thrown.
Otherwise, the first Error (or Throwable non-Exception) is the boss.
The exception, including all collateral exceptions, will be caught by
the first handler who can catch the boss.
---
This is very sensible.
Two issues:
* If the boss is a collateral exception, we still need a way to find
out what the first exception was. Maybe need to add a 'first' (or
'prev') member to Throwable?
Let's save that option for the future.
* It is still possible to throw an Object which isn't derived from
Throwable. Can we disallow this?
Yes please!
Also, as subsequently discussed, I, too, think it's reasonable to lose
state if a non-Exception Throwable gets thrown.
Andrei
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