8282046: Create a regression test for JDK-8000326

Backport-of: 97c7298a39cdd683508617d904c83cc3261da15b

test/jdk/java/awt/Focus/8000326/SetFocusTraversalKeysEnabledTest.java

@@ -0,0 +1,105 @@
+/*
+ * Copyright (c) 2013, 2022, 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
+ * @bug 8000326
+ * @key headful
+ * @summary Focus unable to traverse within the menubar
+ * @run main SetFocusTraversalKeysEnabledTest
+ */
+import java.awt.AWTException;
+import java.awt.BorderLayout;
+import java.awt.Component;
+import java.awt.ContainerOrderFocusTraversalPolicy;
+import java.awt.Robot;
+import java.awt.event.KeyEvent;
+import java.lang.reflect.InvocationTargetException;
+
+import javax.swing.JButton;
+import javax.swing.JFrame;
+import javax.swing.JMenu;
+import javax.swing.JMenuBar;
+import javax.swing.JMenuItem;
+import javax.swing.JPanel;
+import javax.swing.SwingUtilities;
+
+public class SetFocusTraversalKeysEnabledTest {
+
+    private static volatile JFrame jFrame;
+    private static volatile Component currentFocusOwner;
+
+    private static void doTest()
+        throws InvocationTargetException, InterruptedException, AWTException {
+        try {
+            SwingUtilities.invokeAndWait(() -> createGUI());
+            Robot robot = new Robot();
+            robot.setAutoDelay(500);
+            Component lastFocusOwner = null;
+            do {
+                robot.waitForIdle();
+                SwingUtilities.invokeAndWait(() -> currentFocusOwner = jFrame.getFocusOwner());
+
+                System.out.println("Focus owner is : " + currentFocusOwner.getClass().getName());
+                if (currentFocusOwner == lastFocusOwner) {
+                    throw new RuntimeException(
+                        "Problem moving focus from " + currentFocusOwner.getClass().getName());
+                }
+                lastFocusOwner = currentFocusOwner;
+                robot.keyPress(KeyEvent.VK_TAB);
+                robot.keyRelease(KeyEvent.VK_TAB);
+            } while (currentFocusOwner != jFrame);
+        } finally {
+            SwingUtilities.invokeAndWait(() -> jFrame.dispose());
+        }
+    }
+
+    private static void createGUI() {
+        jFrame = new JFrame("Focus Traversal Test");
+        jFrame.setDefaultCloseOperation(JFrame.DISPOSE_ON_CLOSE);
+
+        JMenuBar jMenuBar = new JMenuBar();
+        jMenuBar.setFocusTraversalKeysEnabled(true);
+        jMenuBar.add(new JMenu("First Menu").add(new JMenuItem("First MenuItem")));
+
+        JButton northButton = new JButton("North Button");
+        JButton southButton = new JButton("South Button");
+
+        JPanel jPanel = new JPanel(new BorderLayout());
+        jPanel.add(northButton);
+        jPanel.add(jMenuBar, BorderLayout.NORTH);
+        jPanel.add(southButton, BorderLayout.SOUTH);
+
+        jFrame.getContentPane().add(jPanel);
+        jFrame.setFocusTraversalPolicy(new ContainerOrderFocusTraversalPolicy());
+        jFrame.pack();
+        northButton.requestFocusInWindow();
+        jFrame.setLocationRelativeTo(null);
+        jFrame.setVisible(true);
+    }
+
+    public static void main(String[] args) throws Exception {
+        doTest();
+    }
+}
+