Run the following app and click on the text box. The output is often as follows:

MOUSE_PRESSED 1
MOUSE_RELEASED 2

The expected result is that the click count for the pressed and released events is the same.

package jira;

import javafx.application.Application;
import javafx.event.EventHandler;
import javafx.geometry.Insets;
import javafx.geometry.Orientation;
import javafx.scene.Group;
import javafx.scene.Scene;
import javafx.scene.control.TextBox;
import javafx.scene.input.MouseEvent;
import javafx.scene.layout.FlowPane;
import javafx.stage.Stage;

public class ClickCount extends Application {
    @Override
    public void start(Stage stage) {
        stage.setTitle("Click Count");
        stage.setWidth(800);
        stage.setHeight(600);
        Scene scene = new Scene(new Group());

        FlowPane root = new FlowPane();
        root.setOrientation(Orientation.VERTICAL);
        scene.setRoot(root);

        root.setPadding(new Insets(8, 8, 8, 8));
        root.setVgap(8);

        TextBox textBox = new TextBox();
        root.getChildren().add(textBox);

        textBox.addEventHandler(MouseEvent.MOUSE_PRESSED, new EventHandler<MouseEvent>() {
            @Override
            public void handle(MouseEvent event) {
                System.out.println("MOUSE_PRESSED " + event.getClickCount());
            }
        });

        textBox.addEventHandler(MouseEvent.MOUSE_RELEASED, new EventHandler<MouseEvent>() {
            @Override
            public void handle(MouseEvent event) {
                System.out.println("MOUSE_RELEASED " + event.getClickCount());
            }
        });
        
        textBox.setText("abcd");

        stage.setScene(scene);
        stage.setVisible(true);
    }

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