8298921: Create a regression test for JDK-8139581

Reviewed-by: serb

test/jdk/java/awt/Component/ComponentRedrawnTest.java

@@ -0,0 +1,198 @@
+/*
+ * Copyright (c) 2016, 2023, 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
+ * under the terms of the GNU General Public License version 2 only, as
+ * published by the Free Software Foundation.
+ *
+ * This code is distributed in the hope that it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
+ * version 2 for more details (a copy is included in the LICENSE file that
+ * accompanied this code).
+ *
+ * You should have received a copy of the GNU General Public License version
+ * 2 along with this work; if not, write to the Free Software Foundation,
+ * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
+ *
+ * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
+ * or visit www.oracle.com if you need additional information or have any
+ * questions.
+ */
+
+/*
+ * @test
+ * @key headful
+ * @bug 8139581
+ * @summary Verify that components are redrawn after
+ * removal and addition to a container
+ * @run main ComponentRedrawnTest
+ */
+
+import java.awt.BorderLayout;
+import java.awt.Button;
+import java.awt.Color;
+import java.awt.EventQueue;
+import java.awt.Frame;
+import java.awt.Graphics;
+import java.awt.Panel;
+import java.awt.Robot;
+import java.awt.event.ActionEvent;
+import java.awt.event.MouseEvent;
+import java.util.concurrent.atomic.AtomicInteger;
+
+import javax.swing.JButton;
+
+public class ComponentRedrawnTest {
+
+    private static Frame frame;
+    private static Panel componentPanel;
+    private static Button buttonRemove;
+    private static Button buttonAdd;
+    private static Button awtButton;
+
+    private static volatile Robot robot;
+    private static volatile int x;
+    private static volatile int y;
+    private static AtomicInteger awtPainted = new AtomicInteger();
+    private static AtomicInteger swingPainted = new AtomicInteger();
+
+    public static void main(String args[]) throws Exception {
+        try {
+            EventQueue.invokeAndWait(() -> createGUI());
+            runTest();
+            System.out.println("Test Passed");
+        } finally {
+            EventQueue.invokeAndWait(() -> dispose());
+        }
+    }
+
+    private static void createGUI() {
+        frame = new Frame("ComponentRedrawnTest");
+        frame.setSize(350, 300);
+        frame.setBackground(Color.red);
+
+        componentPanel = new Panel();
+        componentPanel.setLayout(null);
+        componentPanel.setBackground(Color.green);
+
+        awtButton = new Button("AWT Button") {
+            @Override
+            public void paint(Graphics g) {
+                super.paint(g);
+                awtPainted.incrementAndGet();
+            }
+        };
+
+        awtButton.setBounds(0, 0, 330, 100);
+        componentPanel.add(awtButton);
+
+        JButton swingButton = new JButton("Swing JButton") {
+            @Override
+            public void paint(Graphics g) {
+                super.paint(g);
+                swingPainted.incrementAndGet();
+            }
+        };
+
+        swingButton.setBounds(0, 100, 330, 100);
+        componentPanel.add(swingButton);
+        frame.add(componentPanel, BorderLayout.CENTER);
+        buttonRemove = new Button("remove");
+        buttonRemove.addActionListener(ae -> buttonClicked(ae));
+
+        buttonAdd = new Button("add");
+        buttonAdd.addActionListener(ae -> buttonClicked(ae));
+
+        Panel controlPanel = new Panel();
+        controlPanel.setLayout(new BorderLayout());
+        controlPanel.add(buttonRemove, BorderLayout.NORTH);
+        controlPanel.add(buttonAdd, BorderLayout.SOUTH);
+
+        frame.add(controlPanel, BorderLayout.SOUTH);
+        frame.setLocationRelativeTo(null);
+        frame.setVisible(true);
+    }
+
+    private static void buttonClicked(ActionEvent ae) {
+        if (ae.getSource() == buttonRemove) {
+            frame.remove(componentPanel);
+        } else if (ae.getSource() == buttonAdd) {
+            frame.add(componentPanel);
+        }
+        frame.invalidate();
+        frame.validate();
+    }
+
+    private static void runTest() throws Exception {
+        EventQueue.invokeAndWait(() -> createGUI());
+        robot = new Robot();
+        robot.setAutoDelay(500);
+        awtPainted.set(0);
+        swingPainted.set(0);
+
+        try {
+            EventQueue.invokeAndWait(() -> {
+                x = awtButton.getLocationOnScreen().x
+                    + awtButton.getSize().width / 2;
+                y = awtButton.getLocationOnScreen().y
+                    + awtButton.getSize().height / 2;
+            });
+        } catch (Exception e) {
+            throw new RuntimeException("Unexpected Exception encountered: " + e);
+        }
+
+        robot.mouseMove(x, y);
+        robot.waitForIdle();
+        robot.mousePress(MouseEvent.BUTTON1_DOWN_MASK);
+        robot.mouseRelease(MouseEvent.BUTTON1_DOWN_MASK);
+
+        try {
+            EventQueue.invokeAndWait(() -> {
+                x = buttonRemove.getLocationOnScreen().x
+                    + buttonRemove.getSize().width / 2;
+                y = buttonRemove.getLocationOnScreen().y
+                    + buttonRemove.getSize().height / 2;
+            });
+        } catch (Exception e) {
+            throw new RuntimeException("Unexpected Exception encountered: " + e);
+        }
+
+        robot.mouseMove(x, y);
+        robot.waitForIdle();
+        robot.mousePress(MouseEvent.BUTTON1_DOWN_MASK);
+        robot.mouseRelease(MouseEvent.BUTTON1_DOWN_MASK);
+
+        try {
+            EventQueue.invokeAndWait(() -> {
+                x = buttonAdd.getLocationOnScreen().x
+                    + buttonAdd.getSize().width / 2;
+                y = buttonAdd.getLocationOnScreen().y
+                    + buttonAdd.getSize().height / 2;
+            });
+
+        } catch (Exception e) {
+            throw new RuntimeException("Unexpected Exception encountered: " + e);
+        }
+        robot.mouseMove(x, y);
+        robot.waitForIdle();
+        robot.mousePress(MouseEvent.BUTTON1_DOWN_MASK);
+        robot.mouseRelease(MouseEvent.BUTTON1_DOWN_MASK);
+
+        if (awtPainted.get() == 0) {
+            throw new RuntimeException("AWT button is not painted");
+        }
+        if (swingPainted.get() == 0) {
+            throw new RuntimeException("Swing button is not painted");
+        }
+    }
+
+    private static void dispose() {
+        if (frame != null) {
+            frame.dispose();
+            frame = null;
+        }
+    }
+
+}