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Subject: RE: should strings in exceptions match the reference implementation?
Date: Tue, 18 Apr 2006 16:49:46 +0400
Message-ID: <6694B22B6436BC43B429958787E4549801CCD5F1@mssmsx402nb>
Thread-Topic: should strings in exceptions match the reference implementation?
Thread-Index: AcZi33vpoNG7mFPaRlSH52HE/lYyqAAA1pzA
From: "Semukhina, Elena V" <elena.v.semukhina@intel.com>
To: <harmony-dev@incubator.apache.org>

Just one more example.
Should users feel comfortable when getting the RI's message

"java.lang.ArithmeticException: Division impossible"?

Isn't it better for a class library to provide=20
"java.lang.ArithmeticException: integer part of the quotient needs more
than 11 digits"
to help our users find the cause of an exception?

Regards,
Elena Semukhina
Intel Middleware Products Division

>-----Original Message-----
>From: Geir Magnusson Jr [mailto:geir@pobox.com]
>Sent: Tuesday, April 18, 2006 6:56 PM
>To: harmony-dev@incubator.apache.org
>Subject: Re: should strings in exceptions match the reference
>implementation?
>
>Yes - great example.  The point is for mechanical means, but
familiarity
>for users - we don't want them to be "uncomfortable" when using the
>Harmony class library - we want it to feel the same as when they use it
>from Sun...
>
>geir
>
>
>Mark Hindess wrote:
>> I thought my first message in this thread made this clear but
obviously
>not.
>>
>> I'm not suggesting that code would care if the exception messages are
>> identical.  I was suggesting that it is probably now quite common for
>> users to type error messages straight in to google.  Therefore having
>> messages match those of existing implementations would help our users
>> find the cause of an exception.
>>
>> Regards,
>>  Mark.
>>
>> On 4/18/06, Chris Gray <chris.gray@kiffer.be> wrote:
>>> On Tuesday 18 April 2006 09:37, Mark Hindess wrote:
>>>> Are you saying that Classpath does match strings in exceptions?
>>> No. Ah, I see: the "do" in Geir's question stood for "what is
>Classpath's
>>> policy wrt to exception messages matching those of the RI?". Then I
>don't
>>> speak authoritatively, but I've never noticed Classpath going out of
its
>way
>>> to be compatible at this level. But then I would never write code
which
>>> depended on the precise contents of an exception message ...
>>>
>>> Sorry for the confusion,
>>>
>>> Chris
>>>
>>> --
>>> Chris Gray        /k/ Embedded Java Solutions      BE0503765045
>>> Embedded & Mobile Java, OSGi    http://www.k-embedded-java.com/
>>> chris.gray@kiffer.be                             +32 3 216 0369
>>>
>>>
>>>
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>>
>>
>> --
>> Mark Hindess <mark.hindess@googlemail.com>
>> IBM Java Technology Centre, UK.
>>
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