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From robert burrell donkin <robertburrelldon...@blueyonder.co.uk>
Subject Re: [digester] local ArrayStack implementation not backwardscompatible?
Date Tue, 04 May 2004 21:28:33 GMT

On 4 May 2004, at 22:23, David Graham wrote:

>
> --- robert burrell donkin <robertburrelldonkin@blueyonder.co.uk> wrote:
>> On 24 Apr 2004, at 04:19, Craig R. McClanahan wrote:
>>
>> <snip>
>>
>>> From what I can see on TOMCAT-DEV, the Tomcat developers think that
>>> there are backwards incompatibilities for Tomcat users (beyond any
>>> issues that might affect Tomcat itself).  Based on that, I've
>>> certainly been one of those casting aspersions.  If we're all full of
>>> it, a [collections] statement on the nature and scope of backwards
>>> compatibility, pointing out the error of our (Tomcat developers and
>>> my) ways, would go a long ways towards addressing this concern.
>>>
>>> Struts is shortly going to be in the same boat ... the dependency of
>>> Struts itself on collections is only that inherited from
>>> Digester/BeanUtils; but the Struts developers will want to ensure 
>>> that
>>
>>> an upgrade to Collections 3.0 won't cause undue problems for users of
>>> Struts, before we switch.
>>
>> i've been wondering if a possible solution might be to include
>> org.apache.commons.collections.ArrayStack and
>> org.apache.commons.collections.Buffer in with a new beanutils release.
>> these are very stable classes and only the javadocs have changed since
>> the 2.1 collections release.
>
> I don't have beanutils source in front of me but why do we even need
> ArrayStack at all?  It doesn't seem to do anything that standard Java
> collection classes don't already provide.  I'm assuming Buffer is only
> needed because ArrayStack implements it?  It would be nice to make a 
> clean
> break from Commons Collections and not include duplicate classes from 
> its
> jar.

we screwed up :(

a reference (in a public API) to the collection packaged version was 
introduced and not picked up before it had been released.

- robert


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