ADDITIONAL SYSTEM INFORMATION :
Linux asus14 4.15.0-43-generic #46-Ubuntu SMP Thu Dec 6 14:45:28 UTC 2018 x86_64 x86_64 x86_64 GNU/Linux


A DESCRIPTION OF THE PROBLEM :
TextField.setOnKeyPressed is not working on Ubuntu 18.04. It works on Ubuntu 16.04 and Windows 10.

STEPS TO FOLLOW TO REPRODUCE THE PROBLEM :
compile and run the following program on Ubuntu 18.04, type in string "abcd" (without quotes) to the TextField.


EXPECTED VERSUS ACTUAL BEHAVIOR :
EXPECTED -
The expected output is
KeyPressed:
KeyReleased: a
KeyPressed: a
KeyReleased: ab
KeyPressed: ab
KeyReleased: abc
KeyPressed: abc
KeyReleased: abcd

ACTUAL -
the console print out is:
KeyReleased: a
KeyReleased: ab
KeyReleased: abc
KeyReleased: abcd



---------- BEGIN SOURCE ----------
package sample;

import javafx.application.Application;
import javafx.scene.Group;
import javafx.scene.Scene;
import javafx.scene.control.TextField;
import javafx.stage.Stage;

public class Main extends Application {

    @Override
    public void start(Stage primaryStage) throws Exception{
        primaryStage.setTitle("Key Pressed");
        Group root = new Group();
        Scene scene = new Scene(root, 300, 275);
        TextField textField = new TextField();
        //textField.setOnKeyTyped(e -> System.out.println("KeyTyped: " + textField.getText()));
        textField.setOnKeyPressed(e -> System.out.println("KeyPressed: " + textField.getText()));
        textField.setOnKeyReleased(e -> System.out.println("KeyReleased: " + textField.getText()));
        root.getChildren().add(textField);
        primaryStage.setScene(scene);
        primaryStage.show();
    }


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

---------- END SOURCE ----------

FREQUENCY : always