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From Daniel Fagerstrom <>
Subject Re: [2.2] Classloading
Date Fri, 19 May 2006 12:18:26 GMT
Carsten Ziegeler skrev:
> Daniel Fagerstrom wrote:
>> Carsten Ziegeler skrev:
>>> Giacomo Pati wrote:
>>>> b) might work, but since you want it to be the default ClassLoader I 
>>>> expect problems users forgot about wrapping their stuff in web.xml.
>>> Yes, that's true - but apart from that what do you think about the idea?
>> As, we want to make Cocoon less monolithic and easier to use together 
>> with other web frameworks, it seem like a step in the wrong direction to 
>> require all servlets and filters to be wrapped and use non-standard 
>> classloading.
>> I don't remember what classloading problems we have, could you give some 
>> background or a link to the previous discussion you referred to, so that 
>> I can create a more informed opinion about the issue.
> There are several problems, for example Rhino, Xerces and Xalan which
> usually are already in the classpath of the app server. Now, Cocoon
> requires specific versions of these jars and if the app server comes
> with different (possibly incompatible) versions, then you have problems.
> And updating the jars of the app server is a no-go. And the paranoid
> class loader is the only solution which works reliable.
> Other problems occur with logging when for example the app server uses
> the same logging frameworks but with a different configuration.
> Now, you *can* use Cocoon without the paranoid class loader, but I would
> like to make it the default and common practice. If you don't need this
> for your own app, you can change it and simply not configure the wrappers.
Seem reasonable. Then I don't have any problem with having the paranoid 
classloader as default.


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