Creating a Discord Bot with Kotlin - PingCommand

PingCommand.java

public class PingCommand extends ListenerAdapter {

    private Logger logger = LoggerFactory.getLogger(this.getClass());

    //This gets called when a slash command gets used.
    @Override
    public void onSlashCommandInteraction(@NotNull SlashCommandInteractionEvent event) {
        //Check if this is our /ping command
        if (event.getName().equals("ping")) {
            logger.info("Command /ping got used");

            //Reply to the user
            long startTime = System.currentTimeMillis();
            event.reply("Ping ...").setEphemeral(true).queue(hook -> {
                hook.editOriginal("Pong: " + (System.currentTimeMillis() - startTime) + "ms").queue();
            });
        }
    }
}