--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/test/jdk/javax/swing/JSlider/6401380/bug6401380.java	Tue Sep 12 19:03:39 2017 +0200
@@ -0,0 +1,85 @@
+/*
+ * Copyright (c) 2011, 2014, 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
+ * @key headful
+ * @bug 6401380
+ * @summary JSlider - mouse click ont the left side of the knob is ignored.
+ * @library ../../../../lib/testlibrary
+ * @build ExtendedRobot
+ * @author Alexander Potochkin
+ * @run main bug6401380
+ */
+
+import javax.swing.*;
+import javax.swing.plaf.basic.BasicSliderUI;
+import java.awt.*;
+import java.awt.event.InputEvent;
+
+public class bug6401380 extends JFrame {
+    private static JSlider slider;
+
+    public bug6401380() {
+        setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
+
+        slider = new JSlider();
+        slider.setMajorTickSpacing(0);
+        slider.setMaximum(50);
+        slider.setMinorTickSpacing(10);
+        slider.setPaintLabels(true);
+        slider.setPaintTicks(true);
+        slider.setSnapToTicks(true);
+
+        // MetalSliderUI overrides scrollDueToClickInTrack() method
+        // so this test doens't work for Metal
+        slider.setUI(new BasicSliderUI(slider));
+
+        add(slider);
+        setSize(200, 200);
+    }
+
+    public static void main(String[] args) throws Exception {
+
+        ExtendedRobot robot = new ExtendedRobot();
+        robot.setAutoDelay(10);
+
+        SwingUtilities.invokeAndWait(new Runnable() {
+            public void run() {
+                new bug6401380().setVisible(true);
+            }
+        });
+        robot.waitForIdle();
+
+        Point l = slider.getLocationOnScreen();
+        robot.glide(0, 0, l.x + slider.getWidth() / 2, l.y + slider.getHeight() / 2);
+        robot.mousePress(InputEvent.BUTTON1_MASK);
+        robot.mouseRelease(InputEvent.BUTTON1_MASK);
+
+        robot.waitForIdle();
+
+        if (slider.getValue() == slider.getMaximum()) {
+            throw new RuntimeException("Slider value unchanged");
+        }
+    }
+}