Update build 1.8.0_251-b08 makes MediaPlayer freeze

Finally I have found what the problem caused. I build an application from scratch in which I tried to implement everything that I was using in my full blown application. There I found the line that froze the video: one single line in apparently an too early stage where StartTime was set to a Duration.ZERO value. I had added this line because in the abundant use of bindings to control a progressbar and what all, an Exception because of a null value was thrown. In these custom bindings I used mediaPlayer.startTimeProperty().get(). I have changed this to mediaPlayer.getStartTime() (which can give a different result), so that an Exception is prevented. and I can omit the setStartTime(Duration.Zero).

Here an example that shows the problem.

package jrebug;

import javafx.application.Application;

import javafx.beans.binding.Bindings;

import javafx.beans.value.ChangeListener;

import javafx.beans.value.ObservableValue;

import javafx.scene.Scene;

import javafx.scene.input.MouseEvent;

import javafx.scene.layout.Pane;

import javafx.scene.media.Media;

import javafx.scene.media.MediaPlayer;

import javafx.scene.media.MediaPlayer.Status;

import javafx.scene.media.MediaView;

import javafx.stage.FileChooser;

import javafx.stage.Stage;

import javafx.util.Duration;

public class EmbeddedMediaPlayer extends Application {

    private static final String MEDIA_URL = "http://download.oracle.com/otndocs/products/javafx/oow2010-2.flv";

    public static void main(String[] args) {

        launch(args);

    }

    private Media media = null;

    private MediaPlayer mediaPlayer = null;

    @Override

    public void start(Stage primaryStage) throws Exception {

        primaryStage.setTitle("Embedded Media Player");

        String url = getURL();

        primaryStage.setTitle("Opening " + url);

        primaryStage.show();

        media = new Media(url);

        mediaPlayer = new MediaPlayer(media);

        mediaPlayer.setAutoPlay(true);

        /*

         * The following line causes the video to freeze.

         *

         * Remove this line to un-freeze the video

         */

        mediaPlayer.setStartTime(Duration.ZERO);

        /*

         * End of offending line

         */

        mediaPlayer.setCycleCount(10000);

        primaryStage.setScene(new Scene(createMediaPane()));

        monitor(mediaPlayer, primaryStage);

    }

    private Pane createMediaPane() {

        Pane mediaPane = new Pane();

        MediaView mediaView = new MediaView(mediaPlayer);

        mediaView.setOnMouseClicked((event) -> mouseClicked(event));

        mediaPane.getChildren().add(mediaView);

        mediaPane.setStyle("-fx-background-color: black");

        mediaPane.prefWidthProperty().bind(media.widthProperty());

        mediaPane.prefHeightProperty().bind(media.heightProperty());

        mediaView.fitWidthProperty().bind(mediaPane.widthProperty());

        mediaView.fitHeightProperty().bind(mediaPane.heightProperty());

        mediaView.xProperty().bind(Bindings.selectDouble(mediaView.parentProperty(), "width").divide(2.0)

                .subtract(Bindings.min(mediaView.fitWidthProperty(), mediaView.fitHeightProperty()).divide(2)));

        mediaView.yProperty().bind(Bindings.selectDouble(mediaView.parentProperty(), "height").divide(2.0)

                .subtract(Bindings.min(mediaView.fitHeightProperty(), mediaView.fitWidthProperty()).divide(2)));

        return mediaPane;

    }

    private String getURL() {

        try {

            return new FileChooser().showOpenDialog(null).toURI().toURL().toString();

        } catch (Throwable t) {

            return MEDIA_URL;

        }

    }

    private void monitor(final MediaPlayer mediaPlayer, Stage primaryStage) {

        mediaPlayer.statusProperty().addListener(new ChangeListener<Status>() {

            @Override

            public void changed(ObservableValue<? extends Status> prop, Status oldStatus, Status newStatus) {

                primaryStage.setTitle("Status changed from " + oldStatus + " to " + newStatus);

                switch (newStatus) {

                case READY:

                    primaryStage.sizeToScene();

                    primaryStage.show();

                default:

                    break;

                }

            }

        });

        mediaPlayer.setOnReady(() -> primaryStage.setTitle("MediaPlayer is ready"));

    }

    private void mouseClicked(MouseEvent event) {

        switch (mediaPlayer.getStatus()) {

        case PLAYING:

            mediaPlayer.pause();

            break;

        case PAUSED:

            mediaPlayer.play();

            break;

        default:

            break;

        }

        event.consume();

    }

}