How to force jboss to load classes from jars in we

Question

I am trying to deploy my web application on jboss-6.0.0Final, which is currently deployed on apache tomcat. I have two jars one that contains same package which is org.apache.axis. I am putting one jar in <Jboss-home>/server/default/lib & another jar in <my-app-war>WEB-INF/lib.

It is required to put both jars in the class path. No way to remove one of the jar. So I need to keep both jars. & It is giving me following error

java.lang.ClassCastException: org.apache.axis.attachments.AttachmentsImpl cannot be cast to org.apache.axis.attachments.Attachments
    at org.apache.axis.AxisFault.makeFault(AxisFault.java:101)
    at org.apache.axis.client.Call.invoke(Call.java:1828)

I think it is due to conflict of same classes in two different jars.

Now, I want to know the way by which I can force jboss to load classes of this particular package from axis.jar exist in /WEB-INF/lib.

How can I do that?

Answer 1

I'll share quite simple and straight forward process which I had followed when I came across same situation.

1> Create a jboss-web.xml file.

  <class-loading java2classloadingcompliance="false">
  <loader-repository>
      com.rts:archive=DTH_PROD.war
      <loader-repository-config>
          java2ParentDelegation=false
      </loader-repository-config>
  </loader-repository>
  </class-loading>
</jboss-web>

Points:,

• Begin the xml with tag which is not visible in the code I'm posting Check 3rd line of above code,
• com.rts - This is your package name.
• DTH_PROD.war - Name of bundle you wish to keep

2> Now place this xml file into WEB-INF directory of your project and voilla!!

Further more you may wish to refer this article for detailed info. Also comment below if you face any difficulty solving this.

Answer 2

This helped me:
http://www.mastertheboss.com/jboss-configuration/solving-jboss-5-classloading-issues

Explode your war,

In your Exploded WAR web-inf directory add this xml file: jboss-classloading.xml
with content:
(domain is your war name)

 <classloading xmlns="urn:jboss:classloading:1.0"
            name="mywar.war"
            domain="mywar_domain"  <!-- (domain is your war name) -->
            parent-domain="Ignored"
            export-all="NON_EMPTY"
            import-all="true">
</classloading>