Бот для дискорда на JDA не замечает кирилицу

код в welcome.java

package events;

import net.dv8tion.jda.api.events.message.MessageReceivedEvent;
import net.dv8tion.jda.api.events.message.guild.GuildMessageReceivedEvent;
import net.dv8tion.jda.api.hooks.ListenerAdapter;



public class welcome extends ListenerAdapter {

    public void onGuildMessageReceived(GuildMessageReceivedEvent event) {
        String mSent = event.getMessage().getContentRaw();
        if (mSent.equalsIgnoreCase("welcome")) {
            event.getChannel().sendMessage("welcome x2").queue();
        }
        if (mSent.equalsIgnoreCase("Я")) {
            event.getChannel().sendMessage("Да").queue();
        }

    }
    @Override
    public void onMessageReceived(MessageReceivedEvent event) {
        if(event.getAuthor().isBot()) {
            return;
        }
    }
}

код в gradle

group 'com.vladripus'
version '1.0'
apply plugin: 'java'
sourceCompatibility = 1.8
repositories {
    mavenCentral()
    jcenter()
}

dependencies {
    compile 'net.dv8tion:JDA:4.2.0_187'

код в мейне

import events.welcome;
import net.dv8tion.jda.api.JDA;
import net.dv8tion.jda.api.JDABuilder;


public class Main {



    public static void main(String args[]) throws Exception{

        JDA jda = new JDABuilder("NzQwODgwODE2MTIwNTI4OTQ2.XyvdBw.qVfx0Djelby01rDJ1lHXGthhEOM").build();
        jda.addEventListener(new welcome());
    }
}