how to package common lib and ear file

[Dave]

I have an ear application with entity,business and web modules.
  <application ...>
  <module>
      <ejb>foo.par</ejb>
    </module>
      <module>
      <ejb>bar.ejb3</ejb>
    </module>
      <module>
        <web>
            <web-uri>baz.war</web-uri>
            <context-root>/</context-root>
        </web>
    </module>
  </application>

  The .par, .ejb3 and war files use classes in common.jar.  I put the 
common.jar under <JBOSS>/server/default/lib.
   
  In the common.jar,  
   
  String className = System.getProperty("FooClassName");
Class.forName(className).newInstance();
   
  trying to instantiate the class "package.Foo" that is defined in web module 
inside the ear file,  throws a exception:
   
   java.lang.ClassNotFoundException: No ClassLoaders found for: package.Foo
   
  the class package.Foo is application specific and  can not be put into 
common.jar that is a common library. However the common lib needs to 
instantiate the application specific class.
   
  How to solve this issue?   is classloader the answer? 
  
Thanks for any help.
Dave


       
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