public void setAuthzScheme(String authzScheme) {
        this.authzScheme = authzScheme;
    }
Sets the HTTP <b><code>Authorization</code></b> header value that this filter will respond to as indicating a
login request.
<p/>
Unless overridden by this method, the default value is <code>BASIC</code>

@param authzScheme the HTTP <code>Authorization</code> header value that this filter will respond to as
                   indicating a login request.
web/src/main/java/org/apache/shiro/web/filter/authc/HttpAuthenticationFilter.java