--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/jdk/src/share/classes/com/sun/nio/sctp/PeerAddressChangeNotification.java	Thu Apr 16 17:42:00 2009 +0100
@@ -0,0 +1,107 @@
+/*
+ * Copyright 2009 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.  Sun designates this
+ * particular file as subject to the "Classpath" exception as provided
+ * by Sun 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 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.
+ */
+package com.sun.nio.sctp;
+
+import java.net.SocketAddress;
+
+/**
+ * Notification emitted when a destination address on a multi-homed peer
+ * encounters a change.
+ *
+ * @since 1.7
+ */
+public abstract class PeerAddressChangeNotification
+    implements Notification
+{
+    /**
+     * Defines the type of address change event that occurred to the destination
+     * address on a multi-homed peer when it encounters a change of interface
+     * details.
+     *
+     * <P> Some of these events types are only generated when the association
+     * supports dynamic address reconfiguration, e.g. {@code SCTP_ADDR_ADDED},
+     * {@code SCTP_ADDR_REMOVED}, etc.
+     *
+     * @since 1.7
+     */
+    public enum AddressChangeEvent {
+        /**
+         * This address is now reachable.
+         */
+       ADDR_AVAILABLE,
+
+       /**
+        * The address specified can no longer be reached. Any data sent to this
+        * address is rerouted to an alternate until this address becomes reachable.
+        */
+       ADDR_UNREACHABLE,
+
+       /**
+        * The address is no longer part of the association.
+        */
+       ADDR_REMOVED,
+
+       /**
+        * The address is now part of the association.
+        */
+       ADDR_ADDED,
+
+       /**
+        * This address has now been made to be the primary destination address.
+        */
+       ADDR_MADE_PRIMARY,
+
+       /**
+        * This address has now been confirmed as a valid address.
+        */
+       ADDR_CONFIRMED;
+    }
+
+    /**
+     * Initializes a new instance of this class.
+     */
+    protected PeerAddressChangeNotification() {}
+
+    /**
+     * Returns the peer address.
+     *
+     * @return  The peer address
+     */
+    public abstract SocketAddress address();
+
+    /**
+     * Returns the association that this notification is applicable to.
+     *
+     * @return  The association whose peer address changed
+     */
+    public abstract Association association();
+
+    /**
+     * Returns the type of change event.
+     *
+     * @return  The event
+     */
+    public abstract AddressChangeEvent event();
+}