public void setClientAuthenticationMethod(final String clientAuthenticationMethod) {
        this.clientAuthenticationMethod = clientAuthenticationMethod;
    }
<p>Setter for the field <code>clientAuthenticationMethod</code>.</p>

@param clientAuthenticationMethod a {@link String} object
pac4j-oauth/src/main/java/org/pac4j/scribe/builder/api/GenericApi20.java