Authentication without Role in web.xml in JBoss AS 7 - authentication

Question

For a RESTful enterprise application I need all calls to be authenticated, but I cannot provide a common group/rolt that all users of the system have. I authenticate and authorize over LDAP (which should not make a difference for this issue).
If I leave the elements commented out as in the web.xml below, I do not get any authentication at all. How can I have authentication without the need of a common role? Also, an empty auth-consraint does not work.
<?xml version="1.0" encoding="UTF-8"?>
<web-app version="3.0" xmlns="http://java.sun.com/xml/ns/javaee"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation=" http://java.sun.com/xml/ns/javaee http://java.sun.com/xml/ns/javaee/web-app_3_0.xsd">
<context-param>
<!-- fpe: This one is necessary. -->
<param-name>resteasy.role.based.security</param-name>
<param-value>true</param-value>
</context-param>
<security-constraint>
<web-resource-collection>
<web-resource-name>Resteasy</web-resource-name>
<url-pattern>/*</url-pattern>
<http-method>GET</http-method>
<http-method>POST</http-method>
<http-method>PUT</http-method>
<http-method>DELETE</http-method>
</web-resource-collection>
<!-- <auth-constraint> -->
<!-- <role-name>*</role-name> -->
<!-- </auth-constraint> -->
<user-data-constraint>
<transport-guarantee>CONFIDENTIAL</transport-guarantee>
</user-data-constraint>
</security-constraint>
<login-config>
<auth-method>BASIC</auth-method>
<realm-name>Login</realm-name>
</login-config>
<!-- <security-role> -->
<!-- <role-name>the_common_role</role-name> -->
<!-- </security-role> -->
</web-app>

Answer 1

Using the * properly does the trick:
<?xml version="1.0" encoding="UTF-8"?>
<web-app version="3.0" xmlns="http://java.sun.com/xml/ns/javaee"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation=" http://java.sun.com/xml/ns/javaee http://java.sun.com/xml/ns/javaee/web-app_3_0.xsd">
<context-param>
<!-- fpe: This one is necessary. -->
<param-name>resteasy.role.based.security</param-name>
<param-value>true</param-value>
</context-param>
<security-constraint>
<web-resource-collection>
<web-resource-name>Resteasy</web-resource-name>
<url-pattern>/*</url-pattern>
<http-method>GET</http-method>
<http-method>POST</http-method>
<http-method>PUT</http-method>
<http-method>DELETE</http-method>
</web-resource-collection>
<auth-constraint>
<role-name>*</role-name>
</auth-constraint>
<user-data-constraint>
<transport-guarantee>CONFIDENTIAL</transport-guarantee>
</user-data-constraint>
</security-constraint>
<login-config>
<auth-method>BASIC</auth-method>
<realm-name>Login</realm-name>
</login-config>
<security-role>
<role-name>*</role-name>
</security-role>
</web-app>

Answer 2

You should use double asterisks (if you're using Servlet 4.0+):
<auth-constraint>
<role-name>**</role-name>
</auth-constraint>
See: https://stackoverflow.com/a/73899071/562644