public static Optional<ConnectionAuthContext> getConnectionAuthContext(SSLSession s) {
        return Optional.ofNullable((ConnectionAuthContext) s.getValue(PeerAuthorizerTrustManager.AUTH_CONTEXT_PROPERTY));
    }
@return {@link ConnectionAuthContext} instance if {@link SSLEngine} was constructed by a {@link TlsContext}.
        Only available after TLS handshake is completed.
security-utils/src/main/java/com/yahoo/security/tls/TransportSecurityUtils.java