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diff --git a/test/java/net/Socks/SocksV4Test.java b/test/java/net/Socks/SocksV4Test.java
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+/*
+ * 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.
+ */
+
+/*
+ * @test
+ * @bug 4727547
+ * @summary SocksSocketImpl throws NullPointerException
+ * @build SocksServer
+ */
+
+import java.net.*;
+import java.io.*;
+
+public class SocksV4Test {
+    public static void main(String[] args) throws IOException {
+        // Create a SOCKS V4 proxy on port 8888
+        SocksServer srvr = new SocksServer(8888, true);
+        srvr.start();
+        System.setProperty("socksProxyHost", "localhost");
+        System.setProperty("socksProxyPort", "8888");
+        // Let's create an unresolved address
+        InetSocketAddress ad = new InetSocketAddress("doesnt.exist.name", 1234);
+        Socket s = new Socket();
+        try {
+            s.connect(ad,10000);
+        } catch (UnknownHostException ex) {
+            // OK, that's what we expected
+        } catch (NullPointerException npe) {
+            // Not OK, this used to be the bug
+            throw new RuntimeException("Got a NUllPointerException");
+        } finally {
+            srvr.terminate();
+            srvr.interrupt();
+        }
+    }
+}