Call servlet only with ssl

Question

Hi, i'm a new J2EE developer.
I have created a servlet that reads some data by a form.
The servlet response is simply an xml text.
I should want to call this servlet only with https protocol
I use Tomcat 6.0 and i configured it reading official user guide.
The problem is that if i call with browser the servlet (called SimpleResponseServlet) with normal http, i obtain the response.
What can i do avoid this?
this is my web.xml:
<security-constraint>
        <display-name>Constraint1</display-name>
        <web-resource-collection>
            <web-resource-name>SimpleResponseServlet</web-resource-name>
            <description/>
            <url-pattern>/SimpleResponseServlet</url-pattern>
            <http-method>GET</http-method>
            <http-method>POST</http-method>
            <http-method>HEAD</http-method>
            <http-method>PUT</http-method>
            <http-method>OPTIONS</http-method>
            <http-method>TRACE</http-method>
            <http-method>DELETE</http-method>
        </web-resource-collection>
        <user-data-constraint>
            <description/>
            <transport-guarantee>CONFIDENTIAL</transport-guarantee>
        </user-data-constraint>
        </security-constraint>Thank you soo much.

Answer 1

There was an error in server.xml.
Thank you.