Xerces 2.7.1 and Xalan 2.7.0 on JBoss 4.0.3sp1

[mortenholm]

I need Xerces 2.7.1 and Xalan 2.7.0 in a web application. I'm using JBoss 4.0.3sp1 (out-of-the-box) and jdk1.5.0_06.

I have tried putting them in the WEB-INF/lib directory but org.apache.xalan.Version.getVersion() still reports 2.6.0.

[jaikiran]

Have a look at:

http://wiki.jboss.org/wiki/Wiki.jsp?page=JBossClassLoadingUseCases

http://www.jboss.org/wiki/Wiki.jsp?page=ClassLoadingConfiguration

[mortenholm]

I have tried the 'isolation' and the 'isolation with overriding' configuration - but none of those have any effect on Xalan and Xerces specificly.

I still get Xalan version 2.6.0 and Xerces version 2.7.0 from my servlets.

Is it possible at all?

[jaikiran]

If your application is packaged as an ear with classloader isolation, then have the entries similar to the following in the application.xml(present in META-INF):

<module>
 <java>xerces.jar</java>
</module>
<module>
 <java>xalan.jar</java>
</module>

Place these 2 jars directly under your .ear

[mortenholm]

I still can't get it to work. I have an ear-archive with a isolated overriding classloader. I still get Xalan version 2.6.0 when i hit the url http://localhost:8080/jbossclass/version.

I have constructed a small example that demonstrates my problem. The example builds an ear with one war and xerces and xalan in it.

I'm using jdk 1.5.0_06, ant 1.6.2 and jboss 4.0.3sp1.

The example is available here: http://www.muh-ko.dk/jbossclass.zip (~12kb)

Thank you!

[mortenholm]

My solution is to move xalan.jar from lib/endorsed to server/default/lib (http://jira.jboss.com/jira/browse/JBAS-2073) and live with Xerces 2.7.0 from lib/endorsed. JBoss cannot start if Xerces is not in lib/endorsed.

If i run into troubles with this Xerces version i will put Xerces 2.7.1 in lib/endorsed and cross my fingers that JBoss will work with this version of Xerces.

[drnickit]

Hey i had the same problems. And found a solution for our problem.
I don't know which xerces and xalan we are using though.

What we did:
I renamed the jars in the endorsed library to:
3-xercesImpl.jar
4-resolver.jar
5-xml-apis.jar
Then i renamed our xalan and xerces to the folowing:
1-xerces.jar
2-xalan.jar

Note that our jboss is only configure with folowing items since we don't need the rest. I don't know what jboss does when you need something else.
jbossweb-tomcat55.sar
client-deployer-service.xml
jboss-ha-local-jdbc.rar
jboss-ha-xa-jdbc.rar
jbossjca-service.xml
jboss-local-jdbc.rar
jboss-xa-jdbc.rar
properties-service.xml
... OUR WAR's

I hope this helps

Best of luck.
If something is unclear ask away.