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diff --git a/test/java/net/B6499348.java b/test/java/net/B6499348.java
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+/*
+ * Copyright 2007 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 6499348
+ * @summary java.net socket classes should implement java.io.Closeable
+ */
+
+import java.net.*;
+import java.io.Closeable;
+
+public class B6499348 {
+    public static void main(String[] args) throws java.io.IOException {
+        Socket s = new Socket();
+        ServerSocket ss = new ServerSocket();
+        DatagramSocket ds =  new DatagramSocket((SocketAddress) null);
+
+        if (! (s instanceof Closeable))
+            throw new RuntimeException("Socket is not a java.io.Closeable");
+        if (! (ss instanceof Closeable))
+            throw new RuntimeException("ServerSocket is not a java.io.Closeable");
+        if (! (ds instanceof Closeable))
+            throw new RuntimeException("DatagramSocket is not a java.io.Closeable");
+        s.close();
+        ss.close();
+        ds.close();
+    }
+}