--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/test/jdk/java/awt/Robot/MouseLocationOnScreen/MouseLocationOnScreen.java	Mon Jun 04 20:32:19 2018 -0700
@@ -0,0 +1,131 @@
+/*
+ * Copyright (c) 2018, 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.AWTException;
+import java.awt.GraphicsConfiguration;
+import java.awt.GraphicsDevice;
+import java.awt.GraphicsEnvironment;
+import java.awt.MouseInfo;
+import java.awt.Point;
+import java.awt.Rectangle;
+import java.awt.Robot;
+
+/**
+ * @test
+ * @key headful
+ * @bug 8196030
+ * @summary checks that Robot and MouseInfo use the same coordinates
+ */
+public final class MouseLocationOnScreen {
+
+    public static void main(final String[] args) throws AWTException {
+        GraphicsEnvironment lge =
+                GraphicsEnvironment.getLocalGraphicsEnvironment();
+
+        for (final GraphicsDevice device : lge.getScreenDevices()) {
+            GraphicsConfiguration dc = device.getDefaultConfiguration();
+            Robot robot = new Robot(device);
+
+            Rectangle bounds = dc.getBounds();
+            int x1 = bounds.x;
+            int x2 = x1 + bounds.width - 1;
+            int y1 = bounds.y;
+            int y2 = y1 + bounds.height - 1;
+
+            // We'll check all edge (two pixels in a width) of the each screen
+            edge(robot, device, x1, y1, x2, y1);         // top
+            edge(robot, device, x1, y1 + 1, x2, y1 + 1); // top
+
+            edge(robot, device, x2, y1, x2, y2);         // right
+            edge(robot, device, x2 - 1, y1, x2 - 1, y2); // right
+
+            edge(robot, device, x1, y1, x1, y2);         // left
+            edge(robot, device, x1 + 1, y1, x1 + 1, y2); // left
+
+            edge(robot, device, x1, y2, x2, y2);         // bottom
+            edge(robot, device, x1, y2 - 1, x2, y2 - 1); // bottom
+
+            // We'll check crossing of diagonals of each screen
+            cross(robot, device, x1, y1, x2, y2); // cross left-bottom
+            cross(robot, device, x1, y2, x2, y1); // cross left-top
+        }
+    }
+
+    /**
+     * This method checks the coordinates which were passed to robot and
+     * returned by MouseInfo. Note that this method will be called for each
+     * pixel and for performance reasons we try will try to skip waitForIdle()
+     * a few times.
+     */
+    static void validate(Robot robot, GraphicsDevice device, int x, int y) {
+        int attempt = 0;
+        while (true) {
+            attempt++;
+            Point actLoc = MouseInfo.getPointerInfo().getLocation();
+            GraphicsDevice actDevice = MouseInfo.getPointerInfo().getDevice();
+
+            if (actLoc.x != x || actLoc.y != y || actDevice != device) {
+                if (attempt <= 10) {
+                    if (attempt >= 8) {
+                        robot.waitForIdle();
+                    }
+                    continue;
+                }
+                System.err.println("Expected device: " + device);
+                System.err.println("Actual device: " + actDevice);
+                System.err.println("Expected X: " + x);
+                System.err.println("Actual X: " + actLoc.x);
+                System.err.println("Expected Y: " + y);
+                System.err.println("Actual Y: " + actLoc.y);
+                throw new RuntimeException();
+            }
+            return;
+        }
+    }
+
+    private static void edge(Robot robot, GraphicsDevice device,
+                             int x1, int y1, int x2, int y2) {
+        for (int x = x1; x <= x2; x++) {
+            for (int y = y1; y <= y2; y++) {
+                robot.mouseMove(x, y);
+                validate(robot, device, x, y);
+            }
+        }
+    }
+
+    private static void cross(Robot robot, GraphicsDevice device,
+                              int x0, int y0, int x1, int y1) {
+        float dmax = (float) Math.max(Math.abs(x1 - x0), Math.abs(y1 - y0));
+        float dx = (x1 - x0) / dmax;
+        float dy = (y1 - y0) / dmax;
+
+        robot.mouseMove(x0, y0);
+        validate(robot, device, x0, y0);
+        for (int i = 1; i <= dmax; i++) {
+            int x = (int) (x0 + dx * i);
+            int y = (int) (y0 + dy * i);
+            robot.mouseMove(x, y);
+            validate(robot, device, x, y);
+        }
+    }
+}