--- /dev/null	2017-07-31 00:10:02.668086338 -0700
+++ new/test/jdk/java/util/Locale/bcp47u/spi/LocaleNameProviderTests.java	2017-11-10 15:31:02.353152312 -0800
@@ -0,0 +1,52 @@
+/*
+ * Copyright (c) 2017, 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 8176841
+ * @summary Tests LocaleNameProvider SPIs
+ * @library provider
+ * @build provider/module-info provider/foo.LocaleNameProviderImpl
+ * @run main/othervm -Djava.locale.providers=SPI LocaleNameProviderTests
+ */
+
+import java.util.Locale;
+
+/**
+ * Test LocaleNameProvider SPI with BCP47 U extensions
+ * 
+ * Verifies getUnicodeExtensionKey() and getUnicodeExtensionType() methods in
+ * LocaleNameProvider works.
+ */
+public class LocaleNameProviderTests {
+    private static final String expected = "foo (foo_ca:foo_japanese)";
+
+    public static void main(String... args) {
+        String name = Locale.forLanguageTag("foo-u-ca-japanese").getDisplayName(new Locale("foo"));
+        if (!name.equals(expected)) {
+            throw new RuntimeException("Unicode extension key and/or type name(s) is incorrect. " +
+                "Expected: \"" + expected + "\", got: \"" + name + "\"");
+        }
+    }
+}