code: @Override
      public ApplicationDescriptor ejbModule(String uri) {
          model.createChild("module").createChild("ejb").text(uri);
          return this;
      }
docs: /*
  (non-Javadoc)
  
  @see org.jboss.shrinkwrap.descriptor.api.spec.ee.application.ApplicationDescriptor#ejbModule(java.lang.String)