我不明白为什么这个方法不起作用，因为它三天前就起作用了。每当我尝试使用该方法（按下按钮）时，数据库操作都可以正常工作，但是每当我尝试从实际的表视图中删除时，程序就会抛出一个错误，这样用户就不会再看到该行了。我向initialize方法添加了一个过滤列表，我担心这可能是问题的原因。这是我的密码：
初始化方法：

private void initialize()
    {
        ObservableList<BloomClient> clients = FXCollections.observableArrayList();
        firstNames.setCellValueFactory(new PropertyValueFactory<>("FirstName"));
        lastNames.setCellValueFactory(new PropertyValueFactory<>("LastName"));
        phoneNumbers.setCellValueFactory(new PropertyValueFactory<>("PhoneNumber"));
        birthdays.setCellValueFactory(new PropertyValueFactory<>("Birthday"));
        startDates.setCellValueFactory(new PropertyValueFactory<>("StartDate"));
        endDates.setCellValueFactory(new PropertyValueFactory<>("ExpireDate"));
        try {
            clients = dBconnect.getClientList();
        } catch (Exception e) {
            e.printStackTrace();
        }
        FilteredList<BloomClient> filteredList = new FilteredList<BloomClient>(clients,b -> true);
        filteredSearch.textProperty().addListener(((observable, oldValue, newValue) ->
                filteredList.setPredicate(person ->
                {
                    if(newValue == null || newValue.isEmpty())
                        return true;//nothing in text field
                    String lowerCaseFilter = newValue.toLowerCase();
                    if (person.getFirstName().toLowerCase().contains(lowerCaseFilter))
                        return true;//check first name
                    else if (person.getLastName().toLowerCase().contains(lowerCaseFilter))
                        return true;//check last name
                    else
                        return false;
                })
                ));
        SortedList<BloomClient> sortedList = new SortedList<>(filteredList);
        sortedList.comparatorProperty().bind(clientList.comparatorProperty());
        clientList.setItems(sortedList);
    }

public void freezeAccount() throws SQLException, ParseException {
        BloomClient person = clientList.getSelectionModel().getSelectedItem();
        dBconnect.sendToFreeze(person);//this works
        dBconnect.deleteClient(person);//this works
        clientList.getItems().remove(person);//java.lang.UnsupportedOperationException
        clientList.refresh();
    }