Was habt ihr als letztes kopiert?

      try {
        url = "jdbc:mysql://" + this.hostname + ":" + this.portnmbr + "/" + this.database;
        return DriverManager.getConnection(url, this.username, this.password);
      } catch (SQLException e) {
        writeError(url, true);
        writeError("Could not be resolved because of an SQL Exception: " + e.getMessage() + ".", true);
      }