diff -r 4ebc2e2fb97c -r 71c04702a3d5 src/java.naming/share/classes/javax/naming/StringRefAddr.java
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/src/java.naming/share/classes/javax/naming/StringRefAddr.java	Tue Sep 12 19:03:39 2017 +0200
@@ -0,0 +1,86 @@
+/*
+ * Copyright (c) 1999, 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.  Oracle designates this
+ * particular file as subject to the "Classpath" exception as provided
+ * by Oracle in the LICENSE file that accompanied this code.
+ *
+ * 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.
+ */
+
+package javax.naming;
+
+/**
+ * This class represents the string form of the address of
+ * a communications end-point.
+ * It consists of a type that describes the communication mechanism
+ * and a string contents specific to that communication mechanism.
+ * The format and interpretation of
+ * the address type and the contents of the address are based on
+ * the agreement of three parties: the client that uses the address,
+ * the object/server that can be reached using the address, and the
+ * administrator or program that creates the address.
+ *
+ * <p> An example of a string reference address is a host name.
+ * Another example of a string reference address is a URL.
+ *
+ * <p> A string reference address is immutable:
+ * once created, it cannot be changed.  Multithreaded access to
+ * a single StringRefAddr need not be synchronized.
+ *
+ * @author Rosanna Lee
+ * @author Scott Seligman
+ *
+ * @see RefAddr
+ * @see BinaryRefAddr
+ * @since 1.3
+ */
+
+public class StringRefAddr extends RefAddr {
+    /**
+     * Contains the contents of this address.
+     * Can be null.
+     * @serial
+     */
+    private String contents;
+    /**
+      * Constructs a new instance of StringRefAddr using its address type
+      * and contents.
+      *
+      * @param addrType A non-null string describing the type of the address.
+      * @param addr The possibly null contents of the address in the form of a string.
+      */
+    public StringRefAddr(String addrType, String addr) {
+        super(addrType);
+        contents = addr;
+    }
+
+    /**
+      * Retrieves the contents of this address. The result is a string.
+      *
+      * @return The possibly null address contents.
+      */
+    public Object getContent() {
+        return contents;
+    }
+
+    /**
+     * Use serialVersionUID from JNDI 1.1.1 for interoperability
+     */
+    private static final long serialVersionUID = -8913762495138505527L;
+}