8066436: Minimize can cause window to disappear on osx

Reviewed-by: serb, azvegint
Contributed-by: nakul.natu@oracle.com

src/macosx/classes/sun/lwawt/macosx/CPlatformWindow.java

@@ -488,6 +488,9 @@ public class CPlatformWindow extends CFRetainedResource implements PlatformWindo
         } else {
             deliverZoom(true);
 
+            // We need an up to date size of the peer, so we flush the native events
+            // to be sure that there are no setBounds requests in the queue.
+            LWCToolkit.flushNativeSelectors();
             this.normalBounds = peer.getBounds();
 
             GraphicsConfiguration config = getPeer().getGraphicsConfiguration();

src/macosx/classes/sun/lwawt/macosx/LWCToolkit.java

@@ -833,7 +833,7 @@ public final class LWCToolkit extends LWToolkit {
     /**
      * Just spin a single empty block synchronously.
      */
-    private static native void flushNativeSelectors();
+    static native void flushNativeSelectors();
 
     @Override
     public Clipboard createPlatformClipboard() {

test/java/awt/Frame/MaximizedNormalBoundsUndecoratedTest/MaximizedNormalBoundsUndecoratedTest.java

+/*
+ * Copyright (c) 2007, 2015, 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.
+ */
+
+import java.awt.Frame;
+import java.awt.Toolkit;
+import java.awt.Dimension;
+/*
+ * @test
+ * @bug 8066436
+ * @summary Set the size of frame. Set extendedState Frame.MAXIMIZED_BOTH and Frame.NORMAL
+ *          sequentially for undecorated Frame and .
+ *          Check if resulted size is equal to original frame size.
+ * @run main MaximizedNormalBoundsUndecoratedTest
+ */
+
+
+public class MaximizedNormalBoundsUndecoratedTest {
+    private Frame frame;
+    public static void main(String args[]) {
+        if (!Toolkit.getDefaultToolkit().isFrameStateSupported(Frame.MAXIMIZED_BOTH)
+                && !Toolkit.getDefaultToolkit().isFrameStateSupported(Frame.NORMAL)) {
+            return;
+        }
+        MaximizedNormalBoundsUndecoratedTest test = new MaximizedNormalBoundsUndecoratedTest();
+        boolean doPass = true;
+        if( !test.doTest() ) {
+            System.out.println("Maximizing frame not saving correct normal bounds");
+            doPass = false;
+        }
+
+        if(!doPass) {
+            throw new RuntimeException("Maximizing frame not saving correct normal bounds");
+        }
+    }
+
+    boolean doTest() {
+        Dimension beforeMaximizeCalled = new Dimension(300,300);
+
+        frame = new Frame("Test Frame");
+        frame.setUndecorated(true);
+        frame.setFocusable(true);
+        frame.setSize(beforeMaximizeCalled);
+        frame.setVisible(true);
+        frame.setExtendedState(Frame.MAXIMIZED_BOTH);
+        frame.setExtendedState(Frame.NORMAL);
+
+        Dimension afterMaximizedCalled= frame.getBounds().getSize();
+
+        frame.dispose();
+
+        if (beforeMaximizeCalled.equals(afterMaximizedCalled)) {
+            return true;
+        }
+        return false;
+    }
+}