--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/jdk/test/java/util/Calendar/Bug6902861.java	Wed Oct 02 15:31:35 2013 +0900
@@ -0,0 +1,69 @@
+/*
+ * Copyright (c) 2013, 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 6902861
+ * @summary Test for a workaround when WEEK_OF_YEAR and YEAR are out of sync.
+ */
+
+import java.util.*;
+import static java.util.GregorianCalendar.*;
+
+public class Bug6902861 {
+    static int errors = 0;
+
+    public static void main(String [] args) {
+        Locale loc = Locale.getDefault();
+        try {
+            Locale.setDefault(Locale.GERMANY);
+            test(2010, JANUARY, 1, +1, 1);
+            test(2010, JANUARY, 1, +2, 2);
+            test(2010, JANUARY, 1, -1, 52);
+            test(2010, JANUARY, 1, -2, 51);
+            test(2008, DECEMBER, 31, +1, 1);
+            test(2008, DECEMBER, 31, +2, 2);
+            test(2008, DECEMBER, 31, -1, 52);
+            test(2008, DECEMBER, 31, -2, 51);
+            if (errors > 0) {
+                throw new RuntimeException("Failed");
+            }
+        } finally {
+            Locale.setDefault(loc);
+        }
+    }
+
+    static void test(int year, int month, int dayOfMonth, int amount, int expected) {
+        Calendar calendar = new GregorianCalendar(year, month, dayOfMonth);
+        int week = calendar.get(WEEK_OF_YEAR); // fix the date
+        calendar.roll(WEEK_OF_YEAR, amount);
+        int got = calendar.get(WEEK_OF_YEAR);
+        int y = calendar.get(YEAR);
+        if (got != expected || y != year) {
+            String date = String.format("%04d-%02d-%02d", year, month+1, dayOfMonth);
+            System.err.printf("%s: roll %+d: got: %d,%2d; expected: %d,%2d%n",
+                              date, amount, y, got, year, expected);
+            errors++;
+        }
+    }
+}