[jboss-dev] Re: AS usage of lib/endorsed jars

[Scott Stark]

Beyond that question is also the issue I brought up of not infecting 
user applications with implementation choices. These jars generally have 
factory patterns with default implementations, and we need to be 
obfuscating that part so that if users bundle an implementation from the 
same package namespace, they are not fighting with conflicting versions.

Dimitris Andreadis wrote:
> The lib/endorsed jars in the AS distro is a subject that comes up 
> every once in a while.
>
> In AS 4.0.x we have in lib/endorsed/
>     resolver.jar
>     serializer.jar
>     xalan.jar
>     xercesImpl.jar
>     xml-apis.jar
>
> In trunk (AS5) there is also an additional jaxb-api.jar
>
> And in the AS 4.2.x series resolver.jar and xml-apis.jar were left out 
> due to some build issue that went unnoticed until now (I'll spare you 
> the details).
>
> Now the question is what *really* needs to be in lib/endorsed and most 
> importantly why?
>
> Jdk5 suggests the following packages to be overridable, essentially 
> CORBA stuff plus:
> org.w3c.dom
> org.xml.sax
> org.xml.sax.ext
> org.xml.sax.helpers
>
> http://java.sun.com/j2se/1.5.0/docs/guide/standards/
>
> --- resolver.jar ---
> Who's using it / how? We have our own 
> org.jboss.util.xml.JBossEntityResolver (in jboss common) with an open 
> JIRA to externalize its configuration:
> http://jira.jboss.com/jira/browse/JBAS-2038
>
> And another port of the apache resolver which I understand it's not 
> yet complete?
> http://jira.jboss.com/jira/browse/JBWS-678
>
> Is the conf/jax-ws-catalog.xml file in AS5 actually in use?
>
> --- xml-apis.jar ---
> Isn't jdk5 already providing the right version of the xml apis?
>
> --- xerces.jar ---
> Can't we use the embedded jdk5 one?
>
> --- xalan.jar / serializer.jar ---
> Long discussion about moving this out of lib/endorsed:
> http://jira.jboss.com/jira/browse/JBAS-2073
>
> --- jaxb-api.jar ---
> I understand this is needed for jax-ws ?
> http://www.bhaskarvk.info/content/jboss/jbossws_2_0_1.html
>
> It is often the case that users want to have different version of 
> those libs and by putting them in endorsed we force them to scope 
> their deployments.
>
> Any input and strong opinions for tiding things up is appreciated, 
> especially from the "heavy" XML users (WS, XB, SOA, etc.)
>
> Thanks
> /Dimitris
>
>