PicoLimbo/src/main/java/ru/nanit/limbo/util/UuidUtil.java

package ru.nanit.limbo.util;

import java.nio.charset.StandardCharsets;
import java.util.UUID;

public class UuidUtil {

    public static UUID getOfflineModeUuid(String username){
        return UUID.nameUUIDFromBytes(("OfflinePlayer:" + username)
                .getBytes(StandardCharsets.UTF_8));
    }

}