Program: 104118
Project: 104118
Buggy source:
/** 
 * Method used to listen for property change events from the model and update the dialog's graphical components as necessary.
 * @param evt PropertyChangeEvent passed from the model to signal that oneof its properties has changed value.
 */
public void propertyChange(PropertyChangeEvent evt){
  if (evt.getPropertyName().equals(WizardModel.CURRENT_PAGE_PROPERTY)) {
    wizardController.resetButtonsToPanelRules();
  }
 else   if (evt.getPropertyName().equals(WizardModel.NEXT_FINISH_BUTTON_TEXT_PROPERTY)) {
    nextButton.setText(evt.getNewValue().toString());
  }
 else   if (evt.getPropertyName().equals(WizardModel.BACK_BUTTON_TEXT_PROPERTY)) {
    backButton.setText(evt.getNewValue().toString());
  }
 else   if (evt.getPropertyName().equals(WizardModel.CANCEL_BUTTON_TEXT_PROPERTY)) {
    cancelButton.setText(evt.getNewValue().toString());
  }
 else   if (evt.getPropertyName().equals(WizardModel.NEXT_FINISH_BUTTON_ENABLED_PROPERTY)) {
    nextButton.setEnabled((Boolean)evt.getNewValue());
  }
 else   if (evt.getPropertyName().equals(WizardModel.BACK_BUTTON_ENABLED_PROPERTY)) {
    backButton.setEnabled((Boolean)evt.getNewValue());
  }
 else   if (evt.getPropertyName().equals(WizardModel.CANCEL_BUTTON_ENABLED_PROPERTY)) {
    cancelButton.setEnabled((Boolean)evt.getNewValue());
  }
 else   if (evt.getPropertyName().equals(WizardModel.NEXT_FINISH_BUTTON_ICON_PROPERTY)) {
    nextButton.setIcon((Icon)evt.getNewValue());
  }
 else   if (evt.getPropertyName().equals(WizardModel.BACK_BUTTON_ICON_PROPERTY)) {
    backButton.setIcon((Icon)evt.getNewValue());
  }
 else   if (evt.getPropertyName().equals(WizardModel.CANCEL_BUTTON_ICON_PROPERTY)) {
    cancelButton.setIcon((Icon)evt.getNewValue());
  }
}

Fixed version (ground truth):
/** 
 * Method used to listen for property change events from the model and update the dialog's graphical components as necessary.
 * @param evt PropertyChangeEvent passed from the model to signal that oneof its properties has changed value.
 */
public void propertyChange(PropertyChangeEvent evt){
  String name=evt.getPropertyName();
  if (WizardModel.CURRENT_PAGE_PROPERTY.equals(name)) {
    wizardController.resetButtonsToPanelRules();
  }
 else   if (WizardModel.NEXT_FINISH_BUTTON_TEXT_PROPERTY.equals(name)) {
    nextButton.setText(evt.getNewValue().toString());
  }
 else   if (WizardModel.BACK_BUTTON_TEXT_PROPERTY.equals(name)) {
    backButton.setText(evt.getNewValue().toString());
  }
 else   if (WizardModel.CANCEL_BUTTON_TEXT_PROPERTY.equals(name)) {
    cancelButton.setText(evt.getNewValue().toString());
  }
 else   if (WizardModel.NEXT_FINISH_BUTTON_ENABLED_PROPERTY.equals(name)) {
    nextButton.setEnabled((Boolean)evt.getNewValue());
  }
 else   if (WizardModel.BACK_BUTTON_ENABLED_PROPERTY.equals(name)) {
    backButton.setEnabled((Boolean)evt.getNewValue());
  }
 else   if (WizardModel.CANCEL_BUTTON_ENABLED_PROPERTY.equals(name)) {
    cancelButton.setEnabled((Boolean)evt.getNewValue());
  }
 else   if (WizardModel.NEXT_FINISH_BUTTON_ICON_PROPERTY.equals(name)) {
    nextButton.setIcon((Icon)evt.getNewValue());
  }
 else   if (WizardModel.BACK_BUTTON_ICON_PROPERTY.equals(name)) {
    backButton.setIcon((Icon)evt.getNewValue());
  }
 else   if (WizardModel.CANCEL_BUTTON_ICON_PROPERTY.equals(name)) {
    cancelButton.setIcon((Icon)evt.getNewValue());
  }
}