force jbossclassloader to use server/lib first

[jcl2011]

I'm isolating the ear files in my jboss server in the jboss-app.xml file. However this is forcing the classloader to always use the jar files packaged in the .ear first. I want to change the order so that it uses the jar files in server/lib first, and only if that fails, use the jar file in the .ear file. How can I go about doing this?

[alesj]

How do you see that it uses .ear first?

Since isolation != hierarchy, hence it should still go to server/lib first.

[jcl2011]

I have different versions of the same jar file in the .ear package and in server/lib. It works fine without isolation But I get a ClassCastException the moment I introduce it. That's why I think isolation is causing the issue.

[alesj]

I would guess you have the dup jar in your .war inside .ear?

Hence child-first=true kicks in due to servlet spec CL rules.

[jcl2011]

no, the duplicate jar file is not in the .war of the .ear. It's just in the root of the .ear.  The problem jar is antlr.

- In the .ear root, i have antlr-2.7.7.jar

- In jboss's server/myServerName/lib I have antlr-2.7.6.jar

Currently I are using the following jboss-app.xml to try to resolve my issue, but I continue to get the ClassCastException which makes me believe it is still pulling the antlr version from the ear file, not the server/lib as i expect.

<jboss-app>

  <loader-repository>

    earName.ear:archive=earName.ear

    <loader-repository-config>java2ParentDelegation=true</loader-repository-config>

  </loader-repository>

</jboss-app>

Thanks a lot for your help!