--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/jdk/test/java/lang/String/EqualsIgnoreCase.java	Tue Oct 27 09:20:24 2015 -0700
@@ -0,0 +1,104 @@
+/*
+ * Copyright (c) 2015, 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 8138824
+ * @summary Test expected equalsIgnoreCase behavior for some known asymmetric case mappings
+ */
+
+public class EqualsIgnoreCase {
+    private static final String SMALL_I = "i";
+    private static final String CAPITAL_I = "I";
+    // Characters that do not map symmetrically between upper/lower case
+    private static final String SMALL_DOTLESS_I = "\u0131";
+    private static final String CAPITAL_I_WITH_DOT = "\u0130";
+    private static final String LOWER_GREEK_THETA = "\u03D1";
+    private static final String CAPITAL_GREEK_THETA = "\u03F4";
+
+    public static void main(String[] args) {
+        compareFuncs(SMALL_I, CAPITAL_I, true, true);
+        compareFuncs(CAPITAL_I_WITH_DOT, SMALL_DOTLESS_I, true, false);
+        compareFuncs(LOWER_GREEK_THETA, CAPITAL_GREEK_THETA, true, false);
+    }
+
+    /**
+     * Compare the actual results of equalsIgnoreCase():
+     *   toUpperCase(toLowerCase(eachChar))
+     * to the behavior described in the equalsIgnoreCase() spec prior to 8138824:
+     *   toUpperCase(eachChar)
+     *   toLowerCase(eachChar)
+     *
+     * @param s1 A string
+     * @param s2 Another string
+     * @param expectEquals Expected result of equalsIgnoreCase()
+     * @param expectTuTl Expected result of toUpperToLowerOriginals()
+     */
+    private static void compareFuncs(String s1, String s2, boolean expectEquals, boolean expectTuTl) {
+        System.out.println(s1 + ", " + s2);
+        boolean equalsResult = s1.equalsIgnoreCase(s2);
+        System.out.println("equalsIgnoreCase:" + equalsResult);
+
+        boolean tuTlResult = toUpperToLowerOriginals(s1, s2);
+        System.out.println("tUtLO:" + tuTlResult);
+        boolean failed = false;
+
+        if (equalsResult != expectEquals) {
+            System.out.println("Expected " + expectEquals + " from equalsIgnoreCase() but got " + equalsResult);
+            failed = true;
+        }
+        if (tuTlResult != expectTuTl) {
+            System.out.println("Expected " + expectTuTl + " from toUpperToLowerOriginals() but got " + tuTlResult);
+            failed = true;
+        }
+        if (failed) { throw new RuntimeException("Test Failed"); }
+    }
+
+    /**
+     * Apply toUpperCase() and toLowerCase() to corresponding chars of both
+     * Strings.  Returns true if each pair of corresponding chars are either:
+     *   1. == after both are converted to upper case
+     * or
+     *   2. == after both are converted to lower case
+     * and the String lengths are equal.
+     */
+    private static boolean toUpperToLowerOriginals(String str1, String str2) {
+        if (str1.length() != str2.length()) { return false; }
+        for (int i = 0; i < str1.length(); i++) {
+            char c1 = str1.charAt(i);
+            char c2 = str2.charAt(i);
+
+            char uc1 = Character.toUpperCase(c1);
+            char uc2 = Character.toUpperCase(c2);
+            boolean upperMatch = uc1 == uc2;
+
+            char lc1 = Character.toLowerCase(c1);
+            char lc2 = Character.toLowerCase(c2);
+            boolean lowerMatch = lc1 == lc2;
+
+            if (!(upperMatch || lowerMatch)) {
+                return false;
+            }
+        }
+        return true;
+    }
+}