* This class coordinates user operations across different authentication providers.
 */
public class AuthenticationManager {
    /** Array of authentication chains to process user operations. */
    protected AuthenticationChain[] chains = {};

    /**
     * Default constructor for AuthenticationManager.
     */
    public AuthenticationManager() {
        // Default constructor
    }

    /**

    private static final String QUERY_STRING_BUILDER = "queryStringBuilder";

    private static final String ACCESS_TOKEN_HELPER = "accessTokenHelper";

    private static final String AUTHENTICATION_MANAGER = "authenticationManager";

    private static final String THUMBNAIL_MANAGER = "thumbnailManager";

    private static final String SSO_MANAGER = "ssoManager";