public String toString() {
            return "NodeConnectionState(" +
                "state=" + state + ", " +
                "lastConnectAttemptMs=" + lastConnectAttemptMs + ", " +
                "failedAttempts=" + failedAttempts + ", " +
                "failedConnectAttempts=" + failedConnectAttempts + ", " +
                "throttleUntilTimeMs=" + throttleUntilTimeMs + ")";
        }
Clears the resolved addresses in order to trigger re-resolving on the next {@link #currentAddress()} call.
clients/src/main/java/org/apache/kafka/clients/ClusterConnectionStates.java