public String getMatchmakerData() {
        return this.matchmakerData;
    }
<p>
Information about the matchmaking process that resulted in the game session, if matchmaking was used. Data is in
JSON syntax, formatted as a string. Information includes the matchmaker ID as well as player attributes and team
assignments. For more details on matchmaker data, see <a
href="https://docs.aws.amazon.com/gamelift/latest/flexmatchguide/match-server.html#match-server-data">Match
Data</a>. Matchmaker data is updated whenever new players are added during a successful backfill (see <a
href="https://docs.aws.amazon.com/gamelift/latest/apireference/API_StartMatchBackfill.html"
>StartMatchBackfill</a>).
</p>

@return Information about the matchmaking process that resulted in the game session, if matchmaking was used.
        Data is in JSON syntax, formatted as a string. Information includes the matchmaker ID as well as player
        attributes and team assignments. For more details on matchmaker data, see <a
        href="https://docs.aws.amazon.com/gamelift/latest/flexmatchguide/match-server.html#match-server-data"
        >Match Data</a>. Matchmaker data is updated whenever new players are added during a successful backfill
        (see <a href="https://docs.aws.amazon.com/gamelift/latest/apireference/API_StartMatchBackfill.html">
        StartMatchBackfill</a>).
aws-java-sdk-gamelift/src/main/java/com/amazonaws/services/gamelift/model/GameSession.java