--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/src/jdk.sctp/unix/classes/sun/nio/ch/sctp/ResultContainer.java	Tue Sep 12 19:03:39 2017 +0200
@@ -0,0 +1,130 @@
+/*
+ * Copyright (c) 2009, 2013, 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.lang.annotation.Native;
+
+/**
+ * Wraps the actual message or notification so that it can be
+ * set and returned from the native receive implementation.
+ */
+public class ResultContainer {
+    /* static final ints so that they can be referenced from native */
+    @Native static final int NOTHING = 0;
+    @Native static final int MESSAGE = 1;
+    @Native static final int SEND_FAILED = 2;
+    @Native static final int ASSOCIATION_CHANGED = 3;
+    @Native static final int PEER_ADDRESS_CHANGED = 4;
+    @Native static final int SHUTDOWN = 5;
+
+    private Object value;
+    private int type;
+
+    int type() {
+        return type;
+    }
+
+    boolean hasSomething() {
+        return type() != NOTHING;
+    }
+
+    boolean isNotification() {
+        return type() != MESSAGE && type() != NOTHING ? true : false;
+    }
+
+    void clear() {
+        type = NOTHING;
+        value = null;
+    }
+
+    SctpNotification notification() {
+        assert type() != MESSAGE && type() != NOTHING;
+
+        return (SctpNotification) value;
+    }
+
+    MessageInfoImpl getMessageInfo() {
+        assert type() == MESSAGE;
+
+        if (value instanceof MessageInfoImpl)
+            return (MessageInfoImpl) value;
+
+        return null;
+    }
+
+    SendFailed getSendFailed() {
+        assert type() == SEND_FAILED;
+
+        if (value instanceof SendFailed)
+            return (SendFailed) value;
+
+        return null;
+    }
+
+    AssociationChange getAssociationChanged() {
+        assert type() == ASSOCIATION_CHANGED;
+
+        if (value instanceof AssociationChange)
+            return (AssociationChange) value;
+
+        return null;
+    }
+
+    PeerAddrChange getPeerAddressChanged() {
+        assert type() == PEER_ADDRESS_CHANGED;
+
+        if (value instanceof PeerAddrChange)
+            return (PeerAddrChange) value;
+
+        return null;
+    }
+
+    Shutdown getShutdown() {
+        assert type() == SHUTDOWN;
+
+        if (value instanceof Shutdown)
+            return (Shutdown) value;
+
+        return null;
+    }
+
+    @Override
+    public String toString() {
+        StringBuilder sb = new StringBuilder();
+        sb.append("Type: ");
+        switch (type) {
+            case NOTHING:              sb.append("NOTHING");             break;
+            case MESSAGE:              sb.append("MESSAGE");             break;
+            case SEND_FAILED:          sb.append("SEND FAILED");         break;
+            case ASSOCIATION_CHANGED:  sb.append("ASSOCIATION CHANGE");  break;
+            case PEER_ADDRESS_CHANGED: sb.append("PEER ADDRESS CHANGE"); break;
+            case SHUTDOWN:             sb.append("SHUTDOWN");            break;
+            default :                  sb.append("Unknown result type");
+        }
+        sb.append(", Value: ");
+        sb.append((value == null) ? "null" : value.toString());
+        return sb.toString();
+    }
+}