if (driver instanceof IPatchDriver) {
if (!(driver instanceof IConverter)) {
     public void actionPerformed (ActionEvent evt) {//     ErrorMsg.reportStatus("DeviceActionListener->actionPerformed");       driverComboBox.removeAllItems();       Device device = (Device) deviceComboBox.getSelectedItem();       for (int i = 0; i < device.driverCount(); i++) {	 IDriver driver = (IDriver) device.getDriver(i);	 if (driver instanceof IPatchDriver) {	   driverComboBox.addItem(driver);	 }       }       driverComboBox.setEnabled(driverComboBox.getItemCount() > 1);     }