public int addClient(Object[] data) {

                try {

                        if (((String)data[0]).trim().isEmpty() || ((String)data[1]).trim().isEmpty() || ((int)data[2] < 0) || ((int)data[3] <= 0)) {
                                return StatusBar.ERR_INVALID_INPUT_CODE;
                        }

                        // the line below is causing the exception
                        String update = "INSERT INTO Client VALUES(" + ((String)data[0]).trim() + "," + ((String)data[1]).trim() + "," + ((Integer)data[3]).intValue() + "," + ((Integer)data[4]).intValue() + "," + ((Boolean)dat$

                        if (statement.executeUpdate(update) != 1) {
                                return StatusBar.ERR_INTERNAL_CODE;
                        }
                }
                catch (Exception e) {

                        e.printStackTrace();

                        return StatusBar.ERR_INTERNAL_CODE;
                }

                return StatusBar.ERR_SUCCESS_CODE;
        }