presto-main/src/main/java/io/prestosql/metadata/RemoteNodeState.java/RemoteNodeState/RemoteNodeState
class RemoteNodeState:    public RemoteNodeState(HttpClient httpClient, URI stateInfoUri)
    {
        this.httpClient = requireNonNull(httpClient, "httpClient is null");
        this.stateInfoUri = requireNonNull(stateInfoUri, "stateInfoUri is null");
    }