FULL PRODUCT VERSION :
JDK 8_64 u121
ADDITIONAL OS VERSION INFORMATION :
Microsoft Windows [Version 10.0.14393]
EXTRA RELEVANT SYSTEM CONFIGURATION :
cpu: 6th gen i7
A DESCRIPTION OF THE PROBLEM :
A long time ago I complained about jittery PathTransition animation.�� A bug was��openned and I was provided a workaround. This is the old bug: https://bugs.openjdk.java.net/browse/JDK-8126829�� This was with Java 7.�� I revisited the old project that lead to that initial complain, this time with Java 8.�� The problem seems to be back.�� I could not find the old bug report, since I think the JavaFX team is not using the same bug tracking site.
Below is the test code to reproduce.�� I tried it using JDK 8_64��u5, u11, u25, u112, u121 and the problem occurs with all of them.�� The ImageView stutters through the PathTransition.�� I have a new laptop with 6th gen I7 and plenty of ram.�� I do not think it is the hardware.�� This used to be smooth like butter.�� Anyone else experiencing this or can make any suggestions?
REGRESSION. Last worked in version 7u80
STEPS TO FOLLOW TO REPRODUCE THE PROBLEM :
@Override
public void start(Stage primaryStage) {
Circle circle = new Circle(40, Color.RED);
Path path = new Path();
path.getElements().add(new MoveTo(100, 100));
path.getElements().add(new LineTo(500, 100));
path.getElements().add(new LineTo(500, 500));
path.getElements().add(new LineTo(100, 500));
path.getElements().add(new LineTo(100, 100));
PathTransition pathTransition = new PathTransition(Duration.seconds(6), path, circle);
pathTransition.setCycleCount(Animation.INDEFINITE);
pathTransition.setOrientation(PathTransition.OrientationType.ORTHOGONAL_TO_TANGENT);
pathTransition.playFromStart();
Group root = new Group();
root.getChildren().add(circle);
Scene scene = new Scene(root, 600, 600);
primaryStage.setTitle("Hello World!");
primaryStage.setScene(scene);
primaryStage.show();
}
EXPECTED VERSUS ACTUAL BEHAVIOR :
EXPECTED -
Smooth animation.
ACTUAL -
Jitter
REPRODUCIBILITY :
This bug can be reproduced always.