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8288471: java/awt/ScrollPane/bug8077409Test.java is unstable and fails intermittently in CI

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Reviewed-by: abhiscxk, serb
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Manukumar V S 2025-05-06 02:51:23 +00:00 committed by Sergey Bylokhov
parent 64b58f6a54
commit e09d2e275b
1 changed files with 60 additions and 77 deletions
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137
test/jdk/java/awt/ScrollPane/bug8077409Test.java
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@ -1,5 +1,5 @@
/*
* Copyright (c) 2015, Oracle and/or its affiliates. All rights reserved.
* Copyright (c) 2015, 2025, Oracle and/or its affiliates. All rights reserved.
* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
*
* This code is free software; you can redistribute it and/or modify it
@ -26,92 +26,75 @@
* @key headful
* @bug 8077409
* @summary Drawing deviates when validate() is invoked on java.awt.ScrollPane
* @author mikhail.cherkasov@oracle.com
* @run main bug8077409Test
*/
import java.awt.*;
import java.awt.event.*;
import java.awt.AWTException;
import java.awt.BorderLayout;
import java.awt.Canvas;
import java.awt.Color;
import java.awt.Dimension;
import java.awt.Frame;
import java.awt.Graphics;
import java.awt.Point;
import java.awt.ScrollPane;
import java.awt.event.KeyEvent;
public class bug8077409Test extends Frame {
ScrollPane pane;
MyCanvas myCanvas;
ScrollPane pane;
MyCanvas myCanvas;
class MyCanvas extends Canvas {
public Dimension getPreferredSize() {
return new Dimension(400, 800);
public bug8077409Test() {
super();
setLayout(new BorderLayout());
pane = new ScrollPane();
myCanvas = new MyCanvas();
pane.add(myCanvas);
add(pane, BorderLayout.CENTER);
setSize(320, 480);
}
public void paint(Graphics g) {
g.setColor(Color.BLACK);
g.drawLine(0, 0, 399, 0);
g.setColor(Color.RED);
g.drawLine(0, 1, 399, 1);
g.setColor(Color.BLUE);
g.drawLine(0, 2, 399, 2);
g.setColor(Color.GREEN);
g.drawLine(0, 3, 399, 3);
}
}
public bug8077409Test() {
super();
setLayout(new BorderLayout());
pane = new ScrollPane();
myCanvas = new MyCanvas();
pane.add(myCanvas);
add(pane, BorderLayout.CENTER);
setSize(320, 480);
}
@Override
protected void processKeyEvent(KeyEvent e) {
super.processKeyEvent(e);
}
public static void main(String[] args) throws AWTException, InterruptedException {
final bug8077409Test obj = new bug8077409Test();
obj.setVisible(true);
Toolkit.getDefaultToolkit().addAWTEventListener(new AWTEventListener() {
@Override
public void eventDispatched(AWTEvent e) {
KeyEvent keyEvent = (KeyEvent) e;
if(keyEvent.getID() == KeyEvent.KEY_RELEASED) {
if (keyEvent.getKeyCode() == KeyEvent.VK_1) {
System.out.println(obj.pane.toString());
System.out.println("obj.myCanvas.pos: " + obj.myCanvas.getBounds());
System.out.println(obj.myCanvas.toString());
} else if (keyEvent.getKeyCode() == KeyEvent.VK_2) {
obj.repaint();
} else if (keyEvent.getKeyCode() == KeyEvent.VK_DOWN) {
Point scrollPosition = obj.pane.getScrollPosition();
scrollPosition.translate(0, 1);
obj.pane.setScrollPosition(scrollPosition);
} else if (keyEvent.getKeyCode() == KeyEvent.VK_UP) {
Point scrollPosition = obj.pane.getScrollPosition();
scrollPosition.translate(0, -1);
obj.pane.setScrollPosition(scrollPosition);
} else if (keyEvent.getKeyCode() == KeyEvent.VK_SPACE) {
obj.pane.validate();
public static void main(String[] args) throws AWTException, InterruptedException {
final bug8077409Test obj = new bug8077409Test();
try {
obj.setLocationRelativeTo(null);
obj.setVisible(true);
Point scrollPosition = obj.pane.getScrollPosition();
scrollPosition.translate(0, 1);
obj.pane.setScrollPosition(scrollPosition);
int y = obj.pane.getComponent(0).getLocation().y;
obj.pane.validate();
if (y != obj.pane.getComponent(0).getLocation().y) {
throw new RuntimeException("Wrong position of component in ScrollPane");
}
}
} finally {
obj.dispose();
}
}, AWTEvent.KEY_EVENT_MASK);
Point scrollPosition = obj.pane.getScrollPosition();
scrollPosition.translate(0, 1);
obj.pane.setScrollPosition(scrollPosition);
}
int y = obj.pane.getComponent(0).getLocation().y;
obj.pane.validate();
if(y != obj.pane.getComponent(0).getLocation().y){
throw new RuntimeException("Wrong position of component in ScrollPane");
}
}
@Override
protected void processKeyEvent(KeyEvent e) {
super.processKeyEvent(e);
}
class MyCanvas extends Canvas {
@Override
public Dimension getPreferredSize() {
return new Dimension(400, 800);
}
@Override
public void paint(Graphics g) {
g.setColor(Color.BLACK);
g.drawLine(0, 0, 399, 0);
g.setColor(Color.RED);
g.drawLine(0, 1, 399, 1);
g.setColor(Color.BLUE);
g.drawLine(0, 2, 399, 2);
g.setColor(Color.GREEN);
g.drawLine(0, 3, 399, 3);
}
}
}