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From Remy Maucherat <>
Subject Re: svn commit: r575332 - in /tomcat/tc6.0.x/trunk: java/org/apache/naming/resources/ webapps/docs/changelog.xml
Date Fri, 14 Sep 2007 20:27:33 GMT
Filip Hanik - Dev Lists wrote:
> Remy Maucherat wrote:
>> Yes, this is hard to compare to httpd, as in the case of Tomcat, there 
>> is precise specification which defines a portable web application 
>> packaging. I see the latest changes have all aimed at breaking 
>> portability, and I don't like that at all.
> I don't subscribe to this point of view, basically, if that was the 
> case, we wouldn't have META-INF/context.xml as a feature either (as just 
> one example).
> Portability is not something that is enforced by Tomcat, but by the 
> spec. So if a user writes a portable webapp on weblogic, then the spec 
> (and tomcat) make that webapp being able to run on Tomcat. and the other 
> way around. However, pretty much every single servlet engine, Tomcat 
> included, does add additional features, useful to the users for the 
> frameworks.
> If Tomcat didn't have any custom features, then it wouldn't be half as 
> popular as it is today.

This is history rewriting. Actually, people used it (in that order) 
because of:
- it was a component of the RI, which meant not too many spec breaking 
features, and that an app that ran on Tomcat was likely to run on the 
production server (which was rarely Tomcat)
- the Apache brand
- relatively small and light

> Writing a portable webapp, is doable, and essentially has nothing to do 
> with the optional feature set in Tomcat. If you want a portable webapp, 
> simply don't use the non portable features in Tomcat.

It's another strategy: add as many of the features that a few users ask 
for, regardless of what the specification. This is what many commercial 
appservers often do, basically. It's quite amazing you cannot seem to 
accept that I do not like this policy.


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