Program: 77814
Project: 77814
Buggy source:
public CamPosCheckbox(ObservableList<Profile.PairCameraPosition> kamposList,ProfileService pservice,ObservableList<Camera> kamList,ObservableList<Profile> selectedProfile,String checkboxTyp,Stage primaryStage){
  this.checkboxTyp=checkboxTyp;
  cellCheckbox.setOnMouseClicked(new EventHandler<MouseEvent>(){
    @Override public void handle(    MouseEvent event){
      Profile.PairCameraPosition currentCamPos=(Profile.PairCameraPosition)CamPosCheckbox.this.getTableView().getItems().get(CamPosCheckbox.this.getIndex());
      try {
        if (cellCheckbox.isSelected()) {
          if (checkboxTyp.equals("String_Node_Str")) {
            if (currentCamPos.getPosition() != null)             pservice.editPairCameraPosition(currentCamPos,currentCamPos.getCamera().getId(),currentCamPos.getPosition().getId(),true);
 else {
              cellCheckbox.setSelected(false);
              Alert alert=new Alert(Alert.AlertType.ERROR);
              alert.setTitle("String_Node_Str");
              alert.setHeaderText("String_Node_Str");
              alert.setContentText("String_Node_Str");
              alert.initOwner(primaryStage);
              alert.show();
            }
          }
 else {
            int posID;
            if (currentCamPos.getPosition() != null)             posID=currentCamPos.getPosition().getId();
 else             posID=pservice.getAllPositions().get(0).getId();
            kamposList.remove(currentCamPos);
            currentCamPos=pservice.addPairCameraPosition(selectedProfile.get(0).getId(),currentCamPos.getCamera().getId(),posID,false);
            kamposList.add(currentCamPos);
          }
        }
 else {
          if (checkboxTyp.equals("String_Node_Str")) {
            pservice.editPairCameraPosition(currentCamPos,currentCamPos.getCamera().getId(),currentCamPos.getPosition().getId(),false);
          }
 else {
            pservice.erasePairCameraPosition(currentCamPos);
            kamposList.remove(currentCamPos);
            currentCamPos=new Profile.PairCameraPosition(selectedProfile.get(0).getId(),currentCamPos.getCamera(),null,false);
            kamposList.add(currentCamPos);
          }
        }
        LOGGER.debug("String_Node_Str" + checkboxTyp + "String_Node_Str"+ currentCamPos.getId()+ "String_Node_Str"+ cellCheckbox.isSelected()+ "String_Node_Str"+ selectedProfile.get(0).getId());
      }
 catch (      ServiceException e) {
        LOGGER.debug("String_Node_Str" + selectedProfile.get(0).getId(),e);
      }
    }
  }
);
}

Fixed version (ground truth):
public CamPosCheckbox(ObservableList<Profile.PairCameraPosition> kamposList,ProfileService pservice,ObservableList<Profile> selectedProfile,String checkboxTyp,Stage primaryStage){
  this.checkboxTyp=checkboxTyp;
  cellCheckbox.setOnMouseClicked(new EventHandler<MouseEvent>(){
    @Override public void handle(    MouseEvent event){
      Profile.PairCameraPosition currentCamPos=(Profile.PairCameraPosition)CamPosCheckbox.this.getTableView().getItems().get(CamPosCheckbox.this.getIndex());
      try {
        if (cellCheckbox.isSelected()) {
          if (checkboxTyp.equals("String_Node_Str")) {
            if (currentCamPos.getPosition() != null)             pservice.editPairCameraPosition(currentCamPos,currentCamPos.getCamera().getId(),currentCamPos.getPosition().getId(),true);
 else {
              cellCheckbox.setSelected(false);
              Alert alert=new Alert(Alert.AlertType.ERROR);
              alert.setTitle("String_Node_Str");
              alert.setHeaderText("String_Node_Str");
              alert.setContentText("String_Node_Str");
              alert.initOwner(primaryStage);
              alert.show();
            }
          }
 else {
            int posID;
            if (currentCamPos.getPosition() != null)             posID=currentCamPos.getPosition().getId();
 else             posID=pservice.getAllPositions().get(0).getId();
            currentCamPos=pservice.addPairCameraPosition(selectedProfile.get(0).getId(),currentCamPos.getCamera().getId(),posID,false);
            kamposList.clear();
            kamposList.addAll(pservice.getAllPairCamerasWithPositionByProfile(selectedProfile.get(0).getId()));
            getTableView().setItems(kamposList);
          }
        }
 else {
          if (checkboxTyp.equals("String_Node_Str")) {
            pservice.editPairCameraPosition(currentCamPos,currentCamPos.getCamera().getId(),currentCamPos.getPosition().getId(),false);
          }
 else {
            pservice.erasePairCameraPosition(currentCamPos);
            currentCamPos=new Profile.PairCameraPosition(selectedProfile.get(0).getId(),currentCamPos.getCamera(),null,false);
            kamposList.clear();
            kamposList.addAll(pservice.getAllPairCamerasWithPositionByProfile(selectedProfile.get(0).getId()));
            getTableView().setItems(kamposList);
          }
        }
        LOGGER.debug("String_Node_Str" + checkboxTyp + "String_Node_Str"+ currentCamPos.getId()+ "String_Node_Str"+ cellCheckbox.isSelected()+ "String_Node_Str"+ selectedProfile.get(0).getId());
      }
 catch (      ServiceException e) {
        LOGGER.debug("String_Node_Str" + selectedProfile.get(0).getId(),e);
      }
    }
  }
);
}