--- /dev/null	2016-05-17 12:01:17.473251102 +0900
+++ new/test/java/util/TimeZone/DefaultTimeZoneTest.java	2016-05-26 10:32:50.827538022 +0900
@@ -0,0 +1,108 @@
+/*
+ * Copyright (c) 2005, 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 4296930 5033603 7092679
+ * @summary Make sure that Java runtime detects the platform time zone
+ * correctly. Also make sure that the system time zone detection code
+ * detects the "Automatically adjust clock for daylight saving
+ * changes" setting correctly on Windows.
+ * @run applet/manual=yesno DefaultTimeZoneTest.html
+ */
+
+import javax.swing.*;
+import java.awt.*;
+import java.awt.event.*;
+import java.text.*;
+import java.util.*;
+
+public class DefaultTimeZoneTest extends JApplet implements Runnable {
+    static final String FORMAT = "yyyy-MM-dd HH:mm:ss zzzz (XXX)";
+    JLabel tzid;
+    JLabel label;
+    SimpleDateFormat sdf = new SimpleDateFormat(FORMAT);
+    JButton button = new JButton("English");
+    Thread clock;
+    boolean english = false;
+
+    @Override
+    public void init() {
+        tzid = new JLabel("Time zone ID: " + sdf.getTimeZone().getID(), SwingConstants.CENTER);
+        tzid.setAlignmentX(Component.CENTER_ALIGNMENT);
+        label = new JLabel(sdf.format(new Date()), SwingConstants.CENTER);
+        label.setAlignmentX(Component.CENTER_ALIGNMENT);
+        button.addActionListener(new ActionListener() {
+                @Override
+                @SuppressWarnings("deprecation")
+                public void actionPerformed(ActionEvent e) {
+                    english = (english == false);
+                    Locale loc = english ? Locale.US : Locale.getDefault();
+                    sdf = new SimpleDateFormat(FORMAT, loc);
+                    button.setLabel(!english ? "English" : "Local");
+                }
+            });
+        button.setAlignmentX(Component.CENTER_ALIGNMENT);
+        JPanel panel = new JPanel();
+        panel.setLayout(new BoxLayout(panel, BoxLayout.PAGE_AXIS));
+        panel.add(Box.createRigidArea(new Dimension(0, 10)));
+        panel.add(tzid);
+        panel.add(Box.createRigidArea(new Dimension(0, 5)));
+        panel.add(label);
+        panel.add(Box.createRigidArea(new Dimension(0, 10)));
+        panel.add(button);
+        getContentPane().add(panel);
+    }
+
+    @Override
+    public void start() {
+        clock = new Thread(this);
+        clock.start();
+    }
+
+    @Override
+    public void stop() {
+        clock = null;
+    }
+
+    @Override
+    public void run() {
+        Thread me = Thread.currentThread();
+
+        while (clock == me) {
+            // Reset the default time zone so that
+            // TimeZone.getDefault will detect the platform time zone
+            TimeZone.setDefault(null);
+            System.setProperty("user.timezone", "");
+            TimeZone tz = TimeZone.getDefault();
+            sdf.setTimeZone(tz);
+            tzid.setText("Time zone ID: " + tz.getID());
+            label.setText(sdf.format(new Date()));
+            repaint();
+            try {
+                Thread.sleep(1000);
+            } catch (InterruptedException e) {
+            }
+        }
+    }
+}