http://www.jboss.org/xnio: The API JAR of the XNIO project (JBoss by Red Hat) 

package org.xnio;


The desired SSL client authentication mode for SSL channels in server mode.

/**
 * The desired SSL client authentication mode for SSL channels in server mode.
 */
public enum SslClientAuthMode {

    
SSL client authentication is not requested.

/**
     * SSL client authentication is not requested.
     */
    NOT_REQUESTED,
    
SSL client authentication is requested but not required.

/**
     * SSL client authentication is requested but not required.
     */
    REQUESTED,
    
SSL client authentication is required.

/**
     * SSL client authentication is required.
     */
    REQUIRED,
}