diff -r fd16c54261b3 -r 90ce3da70b43 jdk/test/java/net/InetAddress/ptr/Lookup.java
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/jdk/test/java/net/InetAddress/ptr/Lookup.java	Sat Dec 01 00:00:00 2007 +0000
@@ -0,0 +1,56 @@
+/*
+ * Copyright 2002 Sun Microsystems, Inc.  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 Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
+ * CA 95054 USA or visit www.sun.com if you need additional information or
+ * have any questions.
+ */
+
+/*
+ *
+ *
+ * Lookup/reverse lookup class for regression test 4773521 - see
+ * lookup.sh for details.
+ */
+import java.net.InetAddress;
+import java.net.UnknownHostException;
+
+public class Lookup {
+    public static void main(String args[]) throws UnknownHostException {
+
+        // reverse lookup
+
+        if (args[0].equals("-q=PTR")) {
+            InetAddress ia = InetAddress.getByName(args[1]);
+            System.out.println(ia.getHostName());
+            return;
+        }
+
+        // lookup address
+
+        String addr;
+        if (args[0].equals("-q=A")) {
+            addr = args[1];
+        } else {
+            addr = args[0];
+        }
+        InetAddress ia = InetAddress.getByName(args[1]);
+        System.out.println(ia.getHostAddress());
+    }
+
+}