--- a/jdk/src/share/classes/sun/security/pkcs/PKCS9Attribute.java	Wed Jul 24 15:47:10 2013 +0200
+++ b/jdk/src/share/classes/sun/security/pkcs/PKCS9Attribute.java	Wed Jul 24 12:48:10 2013 -0700
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 1997, 2011, Oracle and/or its affiliates. All rights reserved.
+ * Copyright (c) 1997, 2013, 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
@@ -310,7 +310,8 @@
     private static final Byte[][] PKCS9_VALUE_TAGS = {
         null,
         {new Byte(DerValue.tag_IA5String)},   // EMailAddress
-        {new Byte(DerValue.tag_IA5String)},   // UnstructuredName
+        {new Byte(DerValue.tag_IA5String),   // UnstructuredName
+         new Byte(DerValue.tag_PrintableString)},
         {new Byte(DerValue.tag_ObjectId)},    // ContentType
         {new Byte(DerValue.tag_OctetString)}, // MessageDigest
         {new Byte(DerValue.tag_UtcTime)},     // SigningTime

--- a/jdk/src/share/classes/sun/security/tools/keytool/Main.java	Wed Jul 24 15:47:10 2013 +0200
+++ b/jdk/src/share/classes/sun/security/tools/keytool/Main.java	Wed Jul 24 12:48:10 2013 -0700
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 1997, 2012, Oracle and/or its affiliates. All rights reserved.
+ * Copyright (c) 1997, 2013, 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
@@ -2198,8 +2198,15 @@
                     printExtensions(rb.getString("Extension.Request."), exts, out);
                 }
             } else {
-                out.println(attr.getAttributeId());
-                out.println(attr.getAttributeValue());
+                out.println("Attribute: " + attr.getAttributeId());
+                PKCS9Attribute pkcs9Attr =
+                        new PKCS9Attribute(attr.getAttributeId(),
+                                           attr.getAttributeValue());
+                out.print(pkcs9Attr.getName() + ": ");
+                Object attrVal = attr.getAttributeValue();
+                out.println(attrVal instanceof String[] ?
+                            Arrays.toString((String[]) attrVal) :
+                            attrVal);
             }
         }
         if (debug) {

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/jdk/test/sun/security/pkcs/pkcs9/UnstructuredName.java	Wed Jul 24 12:48:10 2013 -0700
@@ -0,0 +1,62 @@
+/*
+ * Copyright (c) 2013, 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 8016916
+ * @summary UnstructuredName should support DirectoryString
+ */
+
+import java.util.Base64;
+import sun.security.pkcs10.PKCS10;
+
+public class UnstructuredName {
+
+    // Certificate request with an Unstructured Name attribute
+    static String csrStr =
+        "MIIBtjCCAR8CAQAwEzERMA8GA1UEAxMIdGVzdE5hbWUwgZ8wDQYJKoZIhvcNAQEB\n" +
+        "BQADgY0AMIGJAoGBAMTEIVCsM8IIhvsbzn6AwQFX5C8RGAWIrL6P5XEr1z+bvHx3\n" +
+        "XhPD4tWLCR6CTKq0lTlo+QKKct7MUY7pdKShajpyYD+1YLgEve0nNd4r5kVUeoHe\n" +
+        "CyIZoImONgAlmVD7M8IJjz2Vg84WVVjkHK67H5qt7Agi1hUnFGmRbJ8rbL7jAgMB\n" +
+        "AAGgYzAXBgkqhkiG9w0BCQcxChMIcGFzc3dvcmQwHAYJKoZIhvcNAQkCMQ8TDW9w\n" +
+        "dGlvbmFsIG5hbWUwKgYJKoZIhvcNAQkOMR0wGzAMBgNVHRMBAf8EAjAAMAsGA1Ud\n" +
+        "DwQEAwIGQDANBgkqhkiG9w0BAQUFAAOBgQBc7ldGSmyCjMU+ssjglCimqknCVdig\n" +
+        "N8FsI/aNRgLqf+eXKWZOxl1v3GB9HCXWDtqOnHd6AJKFpGtK0bqRu7bIncYIiQ1a\n" +
+        "P1NW4Kup8d1fTPhw6xgYtxeHvUxRa2y4IXskPUYqp05HavfNZxmcJ5mZOLtgiDIC\n" +
+        "I3J80saqEUQKqQ==";
+
+    public static void main(String[] args) throws Exception {
+        PKCS10 req = new PKCS10(Base64.getMimeDecoder().decode(csrStr));
+
+        // If PKCS9Attribute did not accept the PrintableString ASN.1 tag,
+        // this would fail with an IOException
+        Object attr = req.getAttributes().getAttribute("1.2.840.113549.1.9.2");
+
+        // Check that the attribute exists
+        if (attr == null) {
+            throw new Exception("Attribute should not be null.");
+        }
+
+        System.out.println("Test passed.");
+    }
+}