web.xml

<?xml version="1.0" encoding="UTF-8"?>
<web-app 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"
      version="3.0">

	<module-name>adapter-test</module-name>

    <servlet>
        <servlet-name>SendUsernameServlet</servlet-name>
        <servlet-class>org.keycloak.testsuite.keycloaksaml.SendUsernameServlet</servlet-class>
    </servlet>
    <servlet>
        <servlet-name>Error Servlet</servlet-name>
        <servlet-class>org.keycloak.testsuite.rule.ErrorServlet</servlet-class>
    </servlet>
    <servlet-mapping>
        <servlet-name>SendUsernameServlet</servlet-name>
        <url-pattern>/*</url-pattern>
    </servlet-mapping>

    <servlet-mapping>
        <servlet-name>Error Servlet</servlet-name>
        <url-pattern>/error.html</url-pattern>
    </servlet-mapping>

    <error-page>
        <error-code>400</error-code>
        <location>/error.html</location>
    </error-page>

    <error-page>
        <error-code>401</error-code>
        <location>/error.html</location>
    </error-page>

    <error-page>
        <error-code>403</error-code>
        <location>/error.html</location>
    </error-page>

    <error-page>
        <error-code>500</error-code>
        <location>/error.html</location>
    </error-page>
    <security-constraint>
        <web-resource-collection>
            <web-resource-name>Users</web-resource-name>
            <url-pattern>/*</url-pattern>
        </web-resource-collection>
        <auth-constraint>
            <role-name>manager</role-name>
        </auth-constraint>
    </security-constraint>

    <login-config>
        <auth-method>BASIC</auth-method>
        <realm-name>demo</realm-name>
        <form-login-config>
            <form-login-page>/error.html</form-login-page>
            <form-error-page>/error.html</form-error-page>
        </form-login-config>
    </login-config>

    <security-role>
        <role-name>manager</role-name>
    </security-role>
    <security-role>
        <role-name>el-jefe</role-name>
    </security-role>
</web-app>