--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/jdk/test/sun/security/krb5/config/Duplicates.java	Mon Oct 29 14:14:06 2012 +0800
@@ -0,0 +1,72 @@
+/*
+ * Copyright (c) 2012, 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 7184246
+ * @compile -XDignore.symbol.file Duplicates.java
+ * @run main/othervm Duplicates
+ * @summary Simplify Config.get() of krb5
+ */
+
+import sun.security.krb5.Config;
+
+public class Duplicates {
+    public static void main(String[] args) throws Exception {
+        System.setProperty("java.security.krb5.conf",
+                System.getProperty("test.src", ".") +"/k1.conf");
+        Config config = Config.getInstance();
+        config.listTable();
+        String s;
+
+        // Latter overwrites former for root section
+        s = config.get("libdefaults", "default_realm");
+        if (s != null) {
+            throw new Exception();
+        }
+        // Latter overwrites former for strings
+        s = config.get("libdefaults", "default_tkt_enctypes");
+        if (!s.equals("aes256-cts")) {
+            throw new Exception();
+        }
+        // Latter overwrites former for sub-section
+        s = config.get("realms", "R1", "kdc");
+        if (!s.equals("k2")) {
+            throw new Exception(s);
+        }
+        // Duplicate keys in [realms] are merged
+        s = config.getAll("realms", "R2", "kdc");
+        if (!s.equals("k1 k2 k3 k4")) {
+            throw new Exception(s);
+        }
+        // Duplicate keys in [capaths] are merged
+        s = config.getAll("capaths", "R1", "R2");
+        if (!s.equals("R3 R4 R5 R6")) {
+            throw new Exception(s);
+        }
+        // We can be very deep now
+        s = config.get("new", "x", "y", "z", "a", "b", "c");
+        if (!s.equals("d")) {
+            throw new Exception(s);
+        }
+    }
+}