diff -r 4ebc2e2fb97c -r 71c04702a3d5 src/jdk.sctp/share/classes/sun/nio/ch/sctp/MessageInfoImpl.java
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/src/jdk.sctp/share/classes/sun/nio/ch/sctp/MessageInfoImpl.java	Tue Sep 12 19:03:39 2017 +0200
@@ -0,0 +1,170 @@
+/*
+ * Copyright (c) 2009, 2012, 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 sun.nio.ch.sctp;
+
+import java.net.SocketAddress;
+import com.sun.nio.sctp.MessageInfo;
+import com.sun.nio.sctp.Association;
+
+/**
+ * An implementation of a MessageInfo.
+ */
+public class MessageInfoImpl extends MessageInfo {
+    private final SocketAddress address;
+    private final int bytes;          /* 0 */
+
+    private Association association;
+    private int assocId;
+    private int streamNumber;
+    private boolean complete = true;
+    private boolean unordered;  /* false */
+    private long timeToLive;    /* 0L */
+    private int ppid;           /* 0 */
+
+    public MessageInfoImpl(Association association,
+                           SocketAddress address,
+                           int streamNumber) {
+        this.association = association;
+        this.address = address;
+        this.streamNumber = streamNumber;
+        bytes = 0;
+    }
+
+    /* Invoked from native */
+    private MessageInfoImpl(int assocId,
+                            SocketAddress address,
+                            int bytes,
+                            int streamNumber,
+                            boolean complete,
+                            boolean unordered,
+                            int ppid) {
+        this.assocId = assocId;
+        this.address = address;
+        this.bytes = bytes;
+        this.streamNumber = streamNumber;
+        this.complete = complete;
+        this.unordered = unordered;
+        this.ppid = ppid;
+    }
+
+    @Override
+    public Association association() {
+        return association;
+    }
+
+    /**
+     * MessageInfoImpl instances created from native will need to have their
+     * association set from the channel.
+     */
+    void setAssociation(Association association) {
+        this.association = association;
+    }
+
+    int associationID() {
+        return assocId;
+    }
+
+    @Override
+    public SocketAddress address() {
+        return address;
+    }
+
+    @Override
+    public int bytes() {
+        return bytes;
+    }
+
+    @Override
+    public int streamNumber() {
+        return streamNumber;
+    }
+
+    @Override
+    public MessageInfo streamNumber(int streamNumber) {
+        if (streamNumber < 0 || streamNumber > 65536)
+            throw new IllegalArgumentException("Invalid stream number");
+
+        this.streamNumber = streamNumber;
+        return this;
+    }
+
+    @Override
+    public int payloadProtocolID() {
+        return ppid;
+    }
+
+    @Override
+    public MessageInfo payloadProtocolID(int ppid) {
+        this.ppid = ppid;
+        return this;
+    }
+
+    @Override
+    public boolean isComplete() {
+        return complete;
+    }
+
+    @Override
+    public MessageInfo complete(boolean complete) {
+        this.complete = complete;
+        return this;
+    }
+
+    @Override
+    public boolean isUnordered() {
+        return unordered;
+    }
+
+    @Override
+    public MessageInfo unordered(boolean unordered) {
+        this.unordered = unordered;
+        return this;
+    }
+
+    @Override
+    public long timeToLive() {
+        return timeToLive;
+    }
+
+    @Override
+    public MessageInfo timeToLive(long millis) {
+        timeToLive = millis;
+        return this;
+    }
+
+    @Override
+    public String toString() {
+        StringBuilder sb = new StringBuilder(super.toString());
+        sb.append( "[Address: ").append(address)
+          .append(", Association: ").append(association)
+          .append(", Assoc ID: ").append(assocId)
+          .append(", Bytes: ").append(bytes)
+          .append(", Stream Number: ").append(streamNumber)
+          .append(", Complete: ").append(complete)
+          .append(", isUnordered: ").append(unordered)
+          .append("]");
+        return sb.toString();
+    }
+}