--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/test/jdk/javax/swing/JMenuItem/8216971/DoubleActionTest.java	Wed Mar 27 12:24:28 2019 +0530
@@ -0,0 +1,118 @@
+/*
+ * Copyright (c) 2019, 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 8216971
+ * @summary For JCheckBoxMenuItem actionPerformed() is called twice, when
+ *  apple.laf.useScreenMenuBar=true and modifier is InputEvent.META_DOWN_MASK
+ * @library /test/lib
+ * @run main DoubleActionTest
+ */
+
+import javax.swing.JFrame;
+import javax.swing.JMenu;
+import javax.swing.JMenuBar;
+import javax.swing.JCheckBoxMenuItem;
+import javax.swing.SwingUtilities;
+import javax.swing.AbstractAction;
+import javax.swing.Action;
+import javax.swing.KeyStroke;
+import java.awt.event.ActionEvent;
+import java.awt.event.InputEvent;
+import java.awt.event.KeyEvent;
+import java.awt.Robot;
+import jdk.test.lib.Platform;
+
+public class DoubleActionTest {
+
+    private static int metaDownCount = 0;
+    private static JFrame frame;
+    private static final int ORIGIN_X = 200;
+    private static final int ORIGIN_Y = 200;
+
+    public static void main(String[] args) throws Exception {
+        if (!System.getProperty("os.name").startsWith("Mac")) {
+            System.out.println("This test is only for Mac OS, passed " +
+            "automatically on other platforms.");
+            return;
+        }
+
+        try {
+            System.setProperty("apple.laf.useScreenMenuBar", "true");
+
+            SwingUtilities.invokeAndWait(DoubleActionTest::createAndShowGUI);
+
+            Robot robot = new Robot();
+            robot.setAutoDelay(100);
+            testKeyPress(robot);
+            robot.delay(1000);
+
+        } finally {
+            SwingUtilities.invokeAndWait(()->frame.dispose());
+            if (metaDownCount != 1) {
+                throw new RuntimeException("Test Failed: actionPerformed is called twice");
+            }
+        }
+    }
+
+    private static void createAndShowGUI() {
+        frame = new JFrame();
+        final JMenuBar menubar = new JMenuBar();
+        final JMenu fileMenu = new JMenu("OPEN ME");
+        final MyAction myAction = new MyAction();
+        final JCheckBoxMenuItem menuItem = new JCheckBoxMenuItem(myAction);
+
+        fileMenu.add(menuItem);
+        menubar.add(fileMenu);
+        frame.setJMenuBar(menubar);
+        frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
+        frame.setBounds(ORIGIN_X, ORIGIN_X, 200, 200);
+        frame.setVisible(true);
+    }
+
+    private static class MyAction extends AbstractAction {
+
+        MyAction() {
+            putValue(Action.NAME, "HIT MY ACCELERATOR KEY");
+            putValue(Action.ACCELERATOR_KEY, KeyStroke.getKeyStroke(KeyEvent.VK_E, InputEvent.META_DOWN_MASK));
+        }
+
+        @Override
+        public void actionPerformed(final ActionEvent e) {
+            System.out.println("Action! called with modifiers: " + e.getModifiers() + "\n" + e);
+            metaDownCount++;
+        }
+    }
+
+    private static void testKeyPress(Robot robot) throws Exception {
+        robot.mouseMove(ORIGIN_X + 50, ORIGIN_Y + 50);
+        robot.waitForIdle();
+        robot.keyPress(KeyEvent.VK_META);
+        robot.keyPress(KeyEvent.VK_E);
+        robot.keyRelease(KeyEvent.VK_E);
+        robot.keyRelease(KeyEvent.VK_META);
+        robot.waitForIdle();
+    }
+}