--- /dev/null	2017-05-11 10:55:52.483632214 -0700
+++ new/test/javax/swing/JFrame/AlwaysOnTop/AlwaysOnTopImeTest.java	2017-05-11 11:10:10.887592202 -0700
@@ -0,0 +1,60 @@
+/*
+ * Copyright (c) 2017, 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 8179665
+ * @summary [Windows] java.awt.IllegalComponentStateException: component must
+ *          be showing on the screen to determine its location
+ * @run main AlwaysOnTopImeTest
+ */
+
+import javax.swing.*;
+import java.awt.*;
+
+public class AlwaysOnTopImeTest {
+
+    private static JDialog d;
+    private static JFrame f;
+
+    public static void main(String[] args) throws Exception {
+        SwingUtilities.invokeLater(() -> {
+            f = new JFrame();
+            f.setVisible(true);
+            d = new JDialog(f);
+            d.add(new JTextField());
+            d.pack();
+            d.setModal(true);
+            f.setAlwaysOnTop(true);
+            d.setVisible(true);
+            f.setAlwaysOnTop(false);
+        });
+        Robot robot = new Robot();
+        robot.waitForIdle();
+        robot.delay(200);
+        SwingUtilities.invokeAndWait(() -> d.setVisible(false));
+        robot.waitForIdle();
+        robot.delay(200);
+        SwingUtilities.invokeLater(f::dispose);
+    }
+}