CellFactory that calculates value in the background - javafx

Question

I would like to calculate a table's cell content asynchronously in the background. I came up with the following solution:
public abstract class AsynchronousCellFactory<E, T> implements Callback<TableColumn<E, T>, TableCell<E, T>> {
#Override
public TableCell<E, T> call(final TableColumn<E, T> param) {
final TableCell<E, T> cell = new TableCell<E, T>() {
private Service<T> service;
#Override
public void updateItem(final T item, final boolean empty) {
super.updateItem(item, empty);
if (service != null) {
service.cancel();
}
if (empty || this.getTableRow() == null || this.getTableRow().getItem() == null) {
setText(null);
} else {
setText("Calculating..");
final E rowDataItem = (E) this.getTableRow().getItem();
service = new Service<T>() {
#Override
protected Task<T> createTask() {
return getTask(rowDataItem);
}
};
service.setOnSucceeded(e -> {
setText(e.getSource().getValue().toString());
});
service.setOnFailed(e -> {
final Throwable t = e.getSource().getException();
setText(t.getLocalizedMessage());
});
service.start();
}
}
};
return cell;
}
protected abstract Task<T> getTask(E rowDataItem);
}
I use this factory for almost all of my columns to calculate different values.
But this does not work very well.
I frequently see cell contents saying Calculating. When I double click on that cell, which triggers a repaint apparently, the correct value appears.
Furthermore, even worse, I see sometimes that cell content is "switched" between columns: stringA, that should be in columnA, is in comlumnB, for example. Again, a double click on that cell fixes that.
I know that those factories are reused by the table columns to calculate cell content for different items, I assume the error is connected to that fact.
EDIT: When I move the service field to the TableCell, the Calculating error seems to be fixed, nevertheless, the switched-values problem persists.
Find a MWE here. It is actually not a working example, since it does not reproduce the problem. I guess the cell factory is working OK, and I am doing something wrong somewhere else.