--- a/jdk/src/share/classes/javax/swing/ToolTipManager.java	Thu Sep 20 17:39:47 2012 +0400
+++ b/jdk/src/share/classes/javax/swing/ToolTipManager.java	Thu Sep 20 17:55:40 2012 +0400
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 1997, 2011, Oracle and/or its affiliates. All rights reserved.
+ * Copyright (c) 1997, 2012, 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
@@ -217,6 +217,25 @@
         return exitTimer.getInitialDelay();
     }
 
+    // Returns GraphicsConfiguration instance that toFind belongs to or null
+    // if drawing point is set to a point beyond visible screen area (e.g.
+    // Point(20000, 20000))
+    private GraphicsConfiguration getDrawingGC(Point toFind) {
+        GraphicsEnvironment env = GraphicsEnvironment.getLocalGraphicsEnvironment();
+        GraphicsDevice devices[] = env.getScreenDevices();
+        for (GraphicsDevice device : devices) {
+            GraphicsConfiguration configs[] = device.getConfigurations();
+            for (GraphicsConfiguration config : configs) {
+                Rectangle rect = config.getBounds();
+                if (rect.contains(toFind)) {
+                    return config;
+                }
+            }
+        }
+
+        return null;
+    }
+
     void showTipWindow() {
         if(insideComponent == null || !insideComponent.isShowing())
             return;
@@ -231,9 +250,25 @@
         if (enabled) {
             Dimension size;
             Point screenLocation = insideComponent.getLocationOnScreen();
-            Point location = new Point();
-            GraphicsConfiguration gc;
-            gc = insideComponent.getGraphicsConfiguration();
+            Point location;
+
+            Point toFind;
+            if (preferredLocation != null) {
+                toFind = new Point(screenLocation.x + preferredLocation.x,
+                        screenLocation.y + preferredLocation.y);
+            } else {
+                toFind = mouseEvent.getLocationOnScreen();
+            }
+
+            GraphicsConfiguration gc = getDrawingGC(toFind);
+            if (gc == null) {
+                toFind = mouseEvent.getLocationOnScreen();
+                gc = getDrawingGC(toFind);
+                if (gc == null) {
+                    gc = insideComponent.getGraphicsConfiguration();
+                }
+            }
+
             Rectangle sBounds = gc.getBounds();
             Insets screenInsets = Toolkit.getDefaultToolkit()
                                              .getScreenInsets(gc);
@@ -253,14 +288,13 @@
             size = tip.getPreferredSize();
 
             if(preferredLocation != null) {
-                location.x = screenLocation.x + preferredLocation.x;
-                location.y = screenLocation.y + preferredLocation.y;
+                location = toFind;
         if (!leftToRight) {
             location.x -= size.width;
         }
             } else {
-                location.x = screenLocation.x + mouseEvent.getX();
-                location.y = screenLocation.y + mouseEvent.getY() + 20;
+                location = new Point(screenLocation.x + mouseEvent.getX(),
+                        screenLocation.y + mouseEvent.getY() + 20);
         if (!leftToRight) {
             if(location.x - size.width>=0) {
                 location.x -= size.width;

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/jdk/test/javax/swing/ToolTipManager/7123767/bug7123767.java	Thu Sep 20 17:55:40 2012 +0400
@@ -0,0 +1,220 @@
+/*
+ * Copyright (c) 2012, 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 7123767
+   @summary Wrong tooltip location in Multi-Monitor configurations
+   @author Vladislav Karnaukhov
+   @run main bug7123767
+*/
+
+import sun.awt.SunToolkit;
+
+import javax.swing.*;
+import javax.swing.plaf.metal.MetalLookAndFeel;
+import java.awt.*;
+import java.awt.event.MouseEvent;
+import java.lang.reflect.InvocationTargetException;
+
+public class bug7123767 extends JFrame {
+
+    private static class TestFactory extends PopupFactory {
+
+        private static TestFactory newFactory = new TestFactory();
+        private static PopupFactory oldFactory;
+
+        private TestFactory() {
+            super();
+        }
+
+        public static void install() {
+            if (oldFactory == null) {
+                oldFactory = getSharedInstance();
+                setSharedInstance(newFactory);
+            }
+        }
+
+        public static void uninstall() {
+            if (oldFactory != null) {
+                setSharedInstance(oldFactory);
+            }
+        }
+
+        // Actual test happens here
+        public Popup getPopup(Component owner, Component contents, int x, int y) {
+            GraphicsConfiguration mouseGC = testGC(MouseInfo.getPointerInfo().getLocation());
+            if (mouseGC == null) {
+                throw new RuntimeException("Can't find GraphicsConfiguration that mouse pointer belongs to");
+            }
+
+            GraphicsConfiguration tipGC = testGC(new Point(x, y));
+            if (tipGC == null) {
+                throw new RuntimeException("Can't find GraphicsConfiguration that tip belongs to");
+            }
+
+            if (!mouseGC.equals(tipGC)) {
+                throw new RuntimeException("Mouse and tip GCs are not equal");
+            }
+
+            return super.getPopup(owner, contents, x, y);
+        }
+
+        private static GraphicsConfiguration testGC(Point pt) {
+            GraphicsEnvironment environment = GraphicsEnvironment.getLocalGraphicsEnvironment();
+            GraphicsDevice[] devices = environment.getScreenDevices();
+            for (GraphicsDevice device : devices) {
+                GraphicsConfiguration[] configs = device.getConfigurations();
+                for (GraphicsConfiguration config : configs) {
+                    Rectangle rect = config.getBounds();
+                    Insets insets = Toolkit.getDefaultToolkit().getScreenInsets(config);
+                    adjustInsets(rect, insets);
+                    if (rect.contains(pt))
+                        return config;
+                }
+            }
+
+            return null;
+        }
+    }
+
+    private static final int MARGIN = 10;
+    private static bug7123767 frame;
+    private static Robot robot;
+
+    public static void main(String[] args) throws Exception {
+        UIManager.setLookAndFeel(new MetalLookAndFeel());
+        setUp();
+        testToolTip();
+        TestFactory.uninstall();
+    }
+
+    // Creates a window that is stretched across all available monitors
+    // and adds itself as ContainerListener to track tooltips drawing
+    private bug7123767() {
+        super();
+
+        ToolTipManager.sharedInstance().setInitialDelay(0);
+        setDefaultCloseOperation(DISPOSE_ON_CLOSE);
+        TestFactory.install();
+
+        JLabel label1 = new JLabel("no preferred location");
+        label1.setToolTipText("tip");
+        add(label1, BorderLayout.WEST);
+
+        JLabel label2 = new JLabel("preferred location (20000, 20000)") {
+            public Point getToolTipLocation(MouseEvent event) {
+                return new Point(20000, 20000);
+            }
+        };
+
+        label2.setToolTipText("tip");
+        add(label2, BorderLayout.EAST);
+
+        setUndecorated(true);
+        pack();
+
+        Rectangle rect = new Rectangle();
+        GraphicsEnvironment environment = GraphicsEnvironment.getLocalGraphicsEnvironment();
+        GraphicsDevice[] devices = environment.getScreenDevices();
+        for (GraphicsDevice device : devices) {
+            GraphicsConfiguration[] configs = device.getConfigurations();
+            for (GraphicsConfiguration config : configs) {
+                Insets localInsets = Toolkit.getDefaultToolkit().getScreenInsets(config);
+                Rectangle localRect = config.getBounds();
+                adjustInsets(localRect, localInsets);
+                rect.add(localRect);
+            }
+        }
+        setBounds(rect);
+    }
+
+    private static void setUp() throws InterruptedException, InvocationTargetException {
+        SwingUtilities.invokeAndWait(new Runnable() {
+            @Override
+            public void run() {
+                frame = new bug7123767();
+                frame.setVisible(true);
+            }
+        });
+    }
+
+    // Moves mouse pointer to the corners of every GraphicsConfiguration
+    private static void testToolTip() throws AWTException {
+        SunToolkit toolkit = (SunToolkit) Toolkit.getDefaultToolkit();
+        toolkit.realSync();
+
+        GraphicsEnvironment environment = GraphicsEnvironment.getLocalGraphicsEnvironment();
+        GraphicsDevice[] devices = environment.getScreenDevices();
+        for (GraphicsDevice device : devices) {
+            GraphicsConfiguration[] configs = device.getConfigurations();
+            for (GraphicsConfiguration config : configs) {
+                Rectangle rect = config.getBounds();
+                Insets insets = toolkit.getScreenInsets(config);
+                adjustInsets(rect, insets);
+
+                // Upper left
+                glide(rect.x + rect.width / 2, rect.y + rect.height / 2,
+                        rect.x + MARGIN, rect.y + MARGIN);
+                toolkit.realSync();
+
+                // Lower left
+                glide(rect.x + rect.width / 2, rect.y + rect.height / 2,
+                        rect.x + MARGIN, rect.y + rect.height - MARGIN);
+                toolkit.realSync();
+
+                // Upper right
+                glide(rect.x + rect.width / 2, rect.y + rect.height / 2,
+                        rect.x + rect.width - MARGIN, rect.y + MARGIN);
+                toolkit.realSync();
+
+                // Lower right
+                glide(rect.x + rect.width / 2, rect.y + rect.height / 2,
+                        rect.x + rect.width - MARGIN, rect.y + rect.height - MARGIN);
+                toolkit.realSync();
+            }
+        }
+    }
+
+    private static void glide(int x0, int y0, int x1, int y1) throws AWTException {
+        if (robot == null) {
+            robot = new Robot();
+            robot.setAutoDelay(20);
+        }
+
+        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);
+        for (int i = 1; i <= dmax; i += 10) {
+            robot.mouseMove((int) (x0 + dx * i), (int) (y0 + dy * i));
+        }
+    }
+
+    private static void adjustInsets(Rectangle rect, final Insets insets) {
+        rect.x += insets.left;
+        rect.y += insets.top;
+        rect.width -= (insets.left + insets.right);
+        rect.height -= (insets.top + insets.bottom);
+    }
+}