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

[Jason T. Greene]

xml-apis.jar is needed because of a serialization incompatibility 
between the SDK QName and the EE QName definition. There is also a 
secret system property that can be used instead.

jaxb-api.jar likely needed for JDK6 compatibility, since it ships with 
newer versions than EE5 requires (might be a problem for JAX-WS as 
well). This might not be necessary if we ship the jaxb 2.1 
implementation, but include the 2.0 API in the normal classpath.


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
> 
> 


-- 
Jason T. Greene
JBoss, a division of Red Hat