--- /dev/null	Fri Oct 21 03:27:46 2016
+++ new/test/javax/net/ssl/DTLS/RespondToRetransmit.java	Fri Oct 21 03:27:46 2016
@@ -0,0 +1,114 @@
+/*
+ * Copyright (c) 2016, 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.
+ */
+
+// SunJSSE does not support dynamic system properties, no way to re-use
+// system properties in samevm/agentvm mode.
+
+/*
+ * @test
+ * @bug 8161086
+ * @summary DTLS handshaking fails if some messages were lost
+ * @modules java.base/sun.security.util
+ * @build DTLSOverDatagram
+ *
+ * @run main/othervm RespondToRetransmit client 0 hello_request
+ * @run main/othervm RespondToRetransmit client 1 client_hello
+ * @run main/othervm RespondToRetransmit client 2 server_hello
+ * @run main/othervm RespondToRetransmit client 3 hello_verify_request
+ * @run main/othervm RespondToRetransmit client 4 new_session_ticket
+ * @run main/othervm RespondToRetransmit client 11 certificate
+ * @run main/othervm RespondToRetransmit client 12 server_key_exchange
+ * @run main/othervm RespondToRetransmit client 13 certificate_request
+ * @run main/othervm RespondToRetransmit client 14 server_hello_done
+ * @run main/othervm RespondToRetransmit client 15 certificate_verify
+ * @run main/othervm RespondToRetransmit client 16 client_key_exchange
+ * @run main/othervm RespondToRetransmit client 20 finished
+ * @run main/othervm RespondToRetransmit client 21 certificate_url
+ * @run main/othervm RespondToRetransmit client 22 certificate_status
+ * @run main/othervm RespondToRetransmit client 23 supplemental_data
+ * @run main/othervm RespondToRetransmit client -1 change_cipher_spec
+ * @run main/othervm RespondToRetransmit server 0 hello_request
+ * @run main/othervm RespondToRetransmit server 1 client_hello
+ * @run main/othervm RespondToRetransmit server 2 server_hello
+ * @run main/othervm RespondToRetransmit server 3 hello_verify_request
+ * @run main/othervm RespondToRetransmit server 4 new_session_ticket
+ * @run main/othervm RespondToRetransmit server 11 certificate
+ * @run main/othervm RespondToRetransmit server 12 server_key_exchange
+ * @run main/othervm RespondToRetransmit server 13 certificate_request
+ * @run main/othervm RespondToRetransmit server 14 server_hello_done
+ * @run main/othervm RespondToRetransmit server 15 certificate_verify
+ * @run main/othervm RespondToRetransmit server 16 client_key_exchange
+ * @run main/othervm RespondToRetransmit server 20 finished
+ * @run main/othervm RespondToRetransmit server 21 certificate_url
+ * @run main/othervm RespondToRetransmit server 22 certificate_status
+ * @run main/othervm RespondToRetransmit server 23 supplemental_data
+ * @run main/othervm RespondToRetransmit server -1 change_cipher_spec
+ */
+
+import java.util.List;
+import java.util.ArrayList;
+import java.net.DatagramPacket;
+import java.net.SocketAddress;
+import javax.net.ssl.SSLEngine;
+
+/**
+ * Test that DTLS implementation is able to do retransmission internally
+ * automatically if packet get lost.
+ */
+public class RespondToRetransmit extends DTLSOverDatagram {
+    private static boolean isClient;
+    private static byte handshakeType;
+
+    private boolean needPacketDuplicate = true;
+
+    public static void main(String[] args) throws Exception {
+        isClient = args[0].equals("client");
+        handshakeType = Byte.valueOf(args[1]);
+
+        RespondToRetransmit testCase = new RespondToRetransmit();
+        testCase.runTest(testCase);
+    }
+
+    @Override
+    boolean produceHandshakePackets(SSLEngine engine, SocketAddress socketAddr,
+            String side, List<DatagramPacket> packets) throws Exception {
+
+        boolean finished = super.produceHandshakePackets(
+                engine, socketAddr, side, packets);
+
+        if (needPacketDuplicate && (!(isClient ^ engine.getUseClientMode()))) {
+            DatagramPacket packet = getPacket(packets, handshakeType);
+            if (packet != null) {
+                needPacketDuplicate = false;
+
+                System.out.println("Duplicate the flight.");
+                List<DatagramPacket> duplicates = new ArrayList<>();
+                finished = super.produceHandshakePackets(
+                        engine, socketAddr, side, duplicates);
+                packets.addAll(duplicates);
+            }
+        }
+
+        return finished;
+    }
+}