Restful Webservice on Application Server Java

Hi,

i'm trying to create Restful Webservices on the Netweaver Java Application Server with JAX-RS.

The Classes are annotated correctly.

                 package pkg;

@Path(value = "/Calculate")

public class Calculate{

    @Path("/{x}&{y}")

    @GET

    @Produces(MediaType.TEXT_PLAIN)

    public String sum(@PathParam("x") int x, @PathParam("y") int y) {

        return Integer.toString(x + y);

    }

}

               and in the web.xml:

<servlet>

        <servlet-name>Servlet</servlet-name>

        <servlet-class>com.sun.jersey.spi.container.servlet.ServletContainer</servlet-class>

        <init-param>

            <param-name>com.sun.jersey.config.property.packages</param-name>

            <param-value>testpkg</param-value>

        </init-param>

        <load-on-startup>1</load-on-startup>

    </servlet>

  <servlet-mapping>

        <servlet-name>Servlet</servlet-name>

        <url-pattern>/rest/*</url-pattern>

    </servlet-mapping>

However, if i deploy on a glassfish server it works.

The Java AS only writes "404 - not found".

Any Suggestions? - Thank you.

Regards,

Michael