The following section works fine in sun j2ee reference server. It doesn't work in jboss3.0 + tomcat4 ( no login box). Can anyone tell me what I missed?

<security-constraint>
<web-resource-collection>
<web-resource-name>WRCollection</web-resource-name>
<url-pattern>/servlet/com.nybot.ecops.seller.ControlServlet_1</url-pattern>
<http-method>GET</http-method>
<http-method>POST</http-method>
</web-resource-collection>
<auth-constraint>
<role-name>seller</role-name>
</auth-constraint>
<user-data-constraint>
<transport-guarantee>NONE</transport-guarantee>
</user-data-constraint>
</security-constraint>
<login-config>
<auth-method>BASIC</auth-method>
<realm-name>MemoryRealm</realm-name>
</login-config>
<security-role>
seller role
<role-name>seller</role-name>
</security-role>