public Snapshot changesSince(Snapshot base) {
            return new Snapshot(
                changesSince(base, Snapshot::tlsCertificateVerificationFailures),
                changesSince(base, Snapshot::peerAuthorizationFailures),
                changesSince(base, Snapshot::serverTlsConnectionsEstablished),
                changesSince(base, Snapshot::clientTlsConnectionsEstablished),
                changesSince(base, Snapshot::serverUnencryptedConnectionsEstablished),
                changesSince(base, Snapshot::clientUnencryptedConnectionsEstablished));
        }
Metric values produced by {@link Transport}.

@author bjorncs
jrt/src/com/yahoo/jrt/TransportMetrics.java