--- old/src/java.desktop/macosx/classes/sun/lwawt/LWWindowPeer.java	2016-08-29 20:20:50.000000000 +0300
+++ new/src/java.desktop/macosx/classes/sun/lwawt/LWWindowPeer.java	2016-08-29 20:20:50.000000000 +0300
@@ -187,6 +187,7 @@
 
         updateAlwaysOnTopState();
         updateMinimumSize();
+	updateFocusableWindowState();
 
         final Shape shape = getTarget().getShape();
         if (shape != null) {
--- /dev/null	2016-08-29 20:20:50.000000000 +0300
+++ new/test/java/awt/Focus/ModalDialogActivationTest/ModalDialogActivationTest.java	2016-08-29 20:20:50.000000000 +0300
@@ -0,0 +1,96 @@
+/*
+ * Copyright (c) 2016, 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.  Oracle designates this
+ * particular file as subject to the "Classpath" exception as provided
+ * by Oracle in the LICENSE file that accompanied this code.
+ *
+ * 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.
+ */
+
+import javax.swing.*;
+import java.awt.*;
+import java.awt.event.*;
+
+/*
+  @test
+  @bug       8160570
+  @summary   Tests that a modal dialog receives WINDOW_ACTIVATED & WINDOW_GAINED_FOCUS on first show.
+*/
+public class ModalDialogActivationTest {
+    static final Object lock = new Object();
+    static volatile boolean activated;
+    static volatile boolean focused;
+
+    public static void main(String[] args) throws InterruptedException {
+        EventQueue.invokeLater(() -> runGUI());
+
+        long time = System.currentTimeMillis();
+        synchronized (lock) {
+            while (!activated || !focused) {
+                lock.wait(5000);
+                if (System.currentTimeMillis() - time >= 5000) break;
+            }
+        }
+        if (!activated || !focused) {
+            throw new RuntimeException("Test FAILED: activated: " + activated + ", focused: " + focused);
+        }
+        System.out.println("Test PASSED");
+    }
+
+    static void runGUI() {
+        JFrame f = new JFrame("frame");
+        JDialog d = new MyModalDialog(f, "dialog");
+        d.addWindowListener(new WindowAdapter() {
+            @Override
+            public void windowActivated(WindowEvent e) {
+                synchronized (lock) {
+                    activated = true;
+                    lock.notifyAll();
+                }
+            }
+        });
+        d.addWindowFocusListener(new WindowAdapter() {
+            @Override
+            public void windowGainedFocus(WindowEvent e) {
+                synchronized (lock) {
+                    focused = true;
+                    lock.notifyAll();
+                }
+            }
+        });
+        f.setVisible(true);
+        d.setVisible(true);
+    }
+
+    static class MyModalDialog extends JDialog {
+        public MyModalDialog(Frame owner, String title) {
+            super(owner, title, true);
+        }
+
+        @Override
+        public boolean getFocusableWindowState() {
+            try {
+                // let Toolkit thread go ahead
+                Thread.sleep(100);
+            } catch (InterruptedException ignore) {
+            }
+            return super.getFocusableWindowState();
+        }
+    }
+}