--- /dev/null	2016-10-12 21:38:39.409088962 +0300
+++ new/test/java/awt/Window/ChangeWindowResizabilty/ChangeWindowResizabiltyTest.java	2016-10-12 22:11:22.465019646 +0300
@@ -0,0 +1,70 @@
+/*
+ * 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.
+ *
+ * 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.
+ */
+
+/* @bug      8166897
+   @summary  Some font overlap in the Optionpane dialog.
+   @run      main ChangeWindowResizabiltyTest
+*/
+
+import java.awt.*;
+
+public class ChangeWindowResizabiltyTest {
+    public static void main(String[] args) throws Exception {
+        Robot robot = new Robot();
+        for(int i = 0; i < 10; i++) {
+            Dialog dialog = new Dialog((Frame) null);
+            Component panel = new Panel();
+            panel.setPreferredSize(new Dimension(200, 100));
+            dialog.add(panel);
+            dialog.pack();
+            dialog.setVisible(true);
+
+            dialog.setResizable(false);
+            robot.waitForIdle();
+            robot.delay(200);
+
+            System.out.println(panel.getLocationOnScreen());
+            System.out.println(dialog.getLocationOnScreen());
+            if (panel.getLocationOnScreen().y <
+                       dialog.getLocationOnScreen().y + dialog.getInsets().top) {
+                dialog.dispose();
+                throw new RuntimeException(
+                        "Wrong content position after setResizable(false)");
+            }
+
+            dialog.setResizable(true);
+            robot.waitForIdle();
+            robot.delay(200);
+            System.out.println(panel.getLocationOnScreen());
+            System.out.println(dialog.getLocationOnScreen());
+            if (panel.getLocationOnScreen().y <
+                    dialog.getLocationOnScreen().y + dialog.getInsets().top) {
+                dialog.dispose();
+                throw new RuntimeException(
+                        "Wrong content position after setResizable(true)");
+            }
+
+            dialog.dispose();
+        }
+    }
+}