--- old/src/java.desktop/windows/native/libawt/windows/awt_TextArea.cpp	2016-06-15 20:41:42.719980452 +0530
+++ new/src/java.desktop/windows/native/libawt/windows/awt_TextArea.cpp	2016-06-15 20:41:42.447980452 +0530
@@ -73,7 +73,10 @@
 }
 
 void AwtTextArea::EditSetSel(CHARRANGE &cr) {
+    // Fix for 5003402: added restoring/hiding selection to enable automatic scrolling
+    SendMessage(EM_HIDESELECTION, FALSE, TRUE);
     SendMessage(EM_EXSETSEL, 0, reinterpret_cast<LPARAM>(&cr));
+    SendMessage(EM_HIDESELECTION, TRUE, TRUE);
     // 6417581: force expected drawing
     if (IS_WINVISTA && cr.cpMin == cr.cpMax) {
         ::InvalidateRect(GetHWnd(), NULL, TRUE);
--- /dev/null	2016-06-15 16:08:56.422299000 +0530
+++ new/test/java/awt/TextArea/AutoScrollOnSelectAndAppend/AutoScrollOnSelectAndAppend.java	2016-06-15 20:41:43.131980452 +0530
@@ -0,0 +1,178 @@
+/*
+ * 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.
+ */
+
+ /*
+  @test
+  @bug 5003402 8151588
+  @summary TextArea must scroll automatically when calling append and select,
+           even when not in focus.
+  @run main AutoScrollOnSelectAndAppend
+ */
+
+import java.awt.Button;
+import java.awt.FlowLayout;
+import java.awt.Frame;
+import java.awt.Point;
+import java.awt.Robot;
+import java.awt.TextArea;
+import java.awt.event.InputEvent;
+import java.awt.event.MouseAdapter;
+import java.awt.event.MouseEvent;
+
+public class AutoScrollOnSelectAndAppend {
+
+    Frame frame;
+    TextArea textArea;
+    Button buttonHoldFocus;
+    Robot robot;
+    int test;
+    int selectScrollPos1;
+    int selectScrollPos2;
+    String selectionText;
+
+    public void composeTextArea() {
+        String filler = "";
+        // Add 10 rows of text for first selection auto scroll test.
+        for (int i = 0; i < 2; i++) {
+            for (int j = 0; j < 5; j++) {
+                filler = filler + i + i + "\n";
+            }
+        }
+        selectScrollPos1 = filler.length();
+        String text = filler + "FirstScroll\n";
+
+        // Add 10 more rows of text for second selection auto scroll test.
+        filler = "";
+        for (int i = 2; i < 4; i++) {
+            for (int j = 0; j < 5; j++) {
+                filler = filler + i + i + "\n";
+            }
+        }
+        text = text + filler;
+        selectScrollPos2 = text.length();
+        text = text + "SecondScroll\n";
+
+        // Add 10 more rows of text for append text auto scroll test.
+        filler = "";
+        for (int i = 4; i < 6; i++) {
+            for (int j = 0; j < 5; j++) {
+                filler = filler + i + i + "\n";
+            }
+        }
+        text = text + filler;
+        textArea.setText(text);
+
+        textArea.addMouseListener(new MouseAdapter() {
+            @Override
+            public void mouseClicked(MouseEvent e) {
+                if (e.getClickCount() % 2 == 0) {
+                    if (!(textArea.getSelectedText().contains(selectionText))) {
+                        dispose();
+                        throw new RuntimeException("Test No: " + test +
+                            ": TextArea is not auto scrolled to show the" +
+                            " select/append text.");
+                    }
+                }
+            }
+        });
+    }
+
+    public AutoScrollOnSelectAndAppend() {
+        try {
+            robot = new Robot();
+        } catch (Exception ex) {
+            throw new RuntimeException("Robot Creation Failed.");
+        }
+        frame = new Frame();
+        frame.setSize(200, 200);
+        frame.setLayout(new FlowLayout());
+
+        textArea = new TextArea(5, 20);
+        composeTextArea();
+        frame.add(textArea);
+
+        buttonHoldFocus = new Button("HoldFocus");
+        frame.add(buttonHoldFocus);
+
+        frame.setVisible(true);
+        robot.waitForIdle();
+
+        // Move mouse cursor on first row of text area.
+        Point loc = textArea.getLocationOnScreen();
+        robot.mouseMove(loc.x + 8, loc.y + 8);
+        robot.waitForIdle();
+    }
+
+    public void doubleClick() {
+        // Delay to make sure auto scroll is finished.
+        robot.waitForIdle();
+        robot.delay(500);
+        robot.mousePress(InputEvent.BUTTON1_MASK);
+        robot.mouseRelease(InputEvent.BUTTON1_MASK);
+        robot.delay(100);
+        robot.mousePress(InputEvent.BUTTON1_MASK);
+        robot.mouseRelease(InputEvent.BUTTON1_MASK);
+        robot.waitForIdle();
+    }
+
+    public void setFocusOnButton() {
+        buttonHoldFocus.requestFocusInWindow();
+        robot.waitForIdle();
+    }
+
+    public void selectAutoScrollTest1() {
+        test = 1;
+        setFocusOnButton();
+        textArea.select(selectScrollPos1, selectScrollPos1);
+        selectionText = "11";
+        doubleClick();
+    }
+
+    public void selectAutoScrollTest2() {
+        test = 2;
+        setFocusOnButton();
+        textArea.select(selectScrollPos2, selectScrollPos2);
+        selectionText = "33";
+        doubleClick();
+    }
+
+    public void appendAutoScrollTest() {
+        test = 3;
+        setFocusOnButton();
+        selectionText = "55";
+        textArea.append("appendScroll");
+        doubleClick();
+    }
+
+    public void dispose() {
+        frame.dispose();
+    }
+
+    public static void main(String[] args) {
+        AutoScrollOnSelectAndAppend test = new AutoScrollOnSelectAndAppend();
+        test.selectAutoScrollTest1();
+        test.selectAutoScrollTest2();
+        test.appendAutoScrollTest();
+        test.dispose();
+    }
+}