Code:


import javafx.application.Application;
import javafx.event.ActionEvent;
import javafx.event.Event;
import javafx.event.EventHandler;
import javafx.scene.Scene;
import javafx.scene.control.Button;
import javafx.scene.control.ButtonBuilder;
import javafx.scene.control.TextField;
import javafx.scene.layout.VBox;
import javafx.stage.Stage;

/**
 *
 * @author alexandr_kirov
 */
public class JavaFX_TextField_OnActionListener extends Application {

    public static void main(String[] args) {
        launch();
    }

    @Override
    public void start(Stage stage) throws Exception {
        final TextField tf = new TextField();

        Button setOnActionListenerButton = ButtonBuilder.create().text("Set on action listener").build();
        setOnActionListenerButton.setOnAction(new EventHandler() {

            @Override
            public void handle(Event t) {
                tf.onActionProperty().setValue(new EventHandler<ActionEvent>() {

                    @Override
                    public void handle(ActionEvent t) {
                        System.out.println("A");
                    }
                });
            }
        });

        VBox pane = new VBox();
        pane.getChildren().addAll(tf, setOnActionListenerButton);

        Scene scene = new Scene(pane, 300, 300);
        stage.setScene(scene);
        stage.show();
    }
}

Steps to reproduce:
Click on button and make some actions on textField. You can see no affect.