Well this is a known bug http://jira.jboss.org/jira/browse/JBWS-1762 :-(

The problem is in your web.xml file which looks like:

...
<servlet>
 <servlet-name>Hello</servlet-name>
 <servlet-class>org.jboss.wsf.stack.jbws.EndpointServlet</servlet-class>
 <init-param>
 <param-name>jboss.ws.endpoint</param-name>
 <param-value>org.jboss.test.ws.jaxrpc.jbws124.HelloJavaBean</param-value>
 </init-param>
 </servlet>
...

Change it in the following way and try to redeploy.

...
<servlet>
 <servlet-name>Hello</servlet-name>
 <servlet-class>org.jboss.test.ws.jaxrpc.jbws124.HelloJavaBean</servlet-class>
 </servlet>
...

If you can use packaged version of wars and ears then use them otherwise you'll face this problem very frequently.

Richard