--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/test/jdk/java/lang/String/CompareIC.java	Tue Sep 12 19:03:39 2017 +0200
@@ -0,0 +1,64 @@
+/*
+ * Copyright (c) 1998, 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 4124769 8160312
+ * @summary Test ignore-case comparison
+ *
+ */
+
+import java.net.*;
+import java.io.InputStream;
+import java.io.IOException;
+
+public class CompareIC {
+
+    public static void main(String[] args) throws Exception {
+        String test1 = "Tess";
+        String test2 = "Test";
+        String test3 = "Tesu";
+        CompareIC comparer = new CompareIC();
+
+        comparer.testTriplet(test1, test2, test3);
+        test2 = test2.toUpperCase();
+        comparer.testTriplet(test1, test2, test3);
+        test2 = test2.toLowerCase();
+        comparer.testTriplet(test1, test2, test3);
+
+        // toLowerCase -> non-latin1
+        if ("\u00b5".compareToIgnoreCase("X") < 0)
+            throw new RuntimeException("Comparison failure1");
+    }
+
+    private void testTriplet(String one, String two, String three)
+        throws Exception {
+            if (one.compareToIgnoreCase(two) > 0)
+                throw new RuntimeException("Comparison failure1");
+            if (two.compareToIgnoreCase(three) > 0)
+                throw new RuntimeException("Comparison failure2");
+            if (three.compareToIgnoreCase(one) < 0)
+                throw new RuntimeException("Comparison failure3");
+    }
+
+}