--- /dev/null	2015-07-25 15:02:20.097409468 -0700
+++ new/test/java/lang/String/CompactString/ValueOf.java	2015-10-30 14:04:22.777186754 -0700
@@ -0,0 +1,78 @@
+/*
+ * 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.
+ */
+
+import org.testng.annotations.DataProvider;
+import org.testng.annotations.Test;
+
+import static org.testng.Assert.assertEquals;
+
+/*
+ * @test
+ * @bug 8077559
+ * @summary Tests Compact String. This one is for String.valueOf.
+ *          valueOf(char[] data) is not tested here.
+ * @run testng/othervm -XX:+CompactStrings ValueOf
+ * @run testng/othervm -XX:-CompactStrings ValueOf
+ */
+
+public class ValueOf {
+
+    /*
+     * Data provider for testValueOf
+     *
+     * @return input parameter for testValueOf
+     */
+    @DataProvider
+    public Object[][] valueOfs() {
+        return new Object[][] { { String.valueOf(true), "true" },
+                { String.valueOf(false), "false" },
+                { String.valueOf(1.0f), "1.0" },
+                { String.valueOf(0.0f), "0.0" },
+                { String.valueOf(Float.MAX_VALUE), "3.4028235E38" },
+                { String.valueOf(Float.MIN_VALUE), "1.4E-45" },
+                { String.valueOf(1.0d), "1.0" },
+                { String.valueOf(0.0d), "0.0" },
+                { String.valueOf(Double.MAX_VALUE), "1.7976931348623157E308" },
+                { String.valueOf(Double.MIN_VALUE), "4.9E-324" },
+                { String.valueOf(1), "1" }, { String.valueOf(0), "0" },
+                { String.valueOf(Integer.MAX_VALUE), "2147483647" },
+                { String.valueOf(Integer.MIN_VALUE), "-2147483648" },
+                { String.valueOf(1L), "1" }, { String.valueOf(0L), "0" },
+                { String.valueOf(Long.MAX_VALUE), "9223372036854775807" },
+                { String.valueOf(Long.MIN_VALUE), "-9223372036854775808" } };
+    }
+
+    /*
+     * test String.valueOf(xxx).
+     *
+     * @param res
+     *            real result
+     * @param expected
+     *            expected result
+     */
+    @Test(dataProvider = "valueOfs")
+    public void testValueOf(String res, String expected) {
+        assertEquals(res, expected);
+    }
+
+}