Как исправить java.lang.RuntimeException: java.sql.SQLException: No suitable driver found for jdbc:mysql://localhost/testbd?

Question

FindMyName @FindMyName

MySQL
Java

Как исправить java.lang.RuntimeException: java.sql.SQLException: No suitable driver found for jdbc:mysql://localhost/testbd?

MySQL.java

package noppes.npcs.client.gui.util;

import java.sql.*;
import java.util.Objects;

public class MySQL {
    private static String address;
    private static String username;
    private static String password;

    private static Connection link;
    private static ResultSet result;
    public static Statement stmt;

    static {
        MySQL.address = "jdbc:mysql://localhost/testbd";
        MySQL.username = "test";
        MySQL.password = "123qwe";
    }

    public static boolean Contains(String query, String column, String trueResponse) {
        try {
            MySQL.link = DriverManager.getConnection(MySQL.address, MySQL.username, MySQL.password);
            MySQL.stmt = MySQL.link.createStatement();
            MySQL.result = MySQL.stmt.executeQuery(query);

            if (MySQL.result.next()) {
                if (MySQL.result.wasNull()) {
                    return false;
                }
                return Objects.equals(MySQL.result.getString(column), trueResponse);
            }
        }
        catch (SQLException e) {
            throw new RuntimeException(e);
        }
        return false;
    }
    public static String getString(String query, String column) {
        try {
            MySQL.link = DriverManager.getConnection(MySQL.address, MySQL.username, MySQL.password);
            MySQL.stmt = MySQL.link.createStatement();
            MySQL.result = MySQL.stmt.executeQuery(query);

            if (MySQL.result.next()) {
                if (MySQL.result.wasNull()) {
                    return null;
                }
                return MySQL.result.getString(column);
            }
        }
        catch (SQLException e) {
            throw new RuntimeException(e);
        }
        return null;
    }

    public static void sendQuery(String query) {
        try {
            MySQL.link = DriverManager.getConnection(MySQL.address, MySQL.username, MySQL.password);
            MySQL.stmt = MySQL.link.createStatement();
            MySQL.stmt.executeUpdate(query);
            MySQL.link.close();
        }
        catch (SQLException e) {
            throw new RuntimeException(e);
        }
    }
}

Запросы (не обращайте внимания на то что он рисут, это майнкрафт)

String query = String.format("SELECT `ammount` FROM `items` WHERE item=\"%s\"", item);
                query = String.format("SELECT `ammount` FROM `items` WHERE item=\"%s\"", item);

                if (!MySQL.Contains(query, "ammount", null)) {
                    String ammountt = MySQL.getString(query, "ammount");

                    fontRendererObj.drawString("*", x + 45, y + 22, 16777215);

                    return;
                } else {
                    query = String.format("INSERT INTO `items` (`id`, `ammount`, `item`) VALUES (NULL, '10000', '%s'))", item);

                    MySQL.sendQuery(query);
                }

Что может быть вызвано ошибкой?