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/* * Copyright (c) 2009, 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 com.sun.nio.sctp; import java.nio.ByteBuffer;import java.net.SocketAddress; /** * Notification emitted when a send failed notification has been received. * * <P> A send failed notification indicates that a message cannot be delivered. * Typically this is because the association has been shutdown with unsent data * in the socket output buffer, or in the case of a {@link SctpMultiChannel} * the association failed to setup. * * @since 1.7 */public abstract class SendFailedNotification implements Notification {    /**     * Initializes a new instance of this class.     */    protected SendFailedNotification() {}     /**     * Returns the association that this notification is applicable to.     *     * @return  The association that failed to send, or {@code null} if     *          there is no association, that is, the notification follows a     *          {@linkplain     *          com.sun.nio.sctp.AssociationChangeNotification.AssocChangeEvent#CANT_START}     */    @Override    public abstract Association association();     /**     * Returns the address.     *     * @return  The peer primary address of the association or the address that     *          the message was sent to     */    public abstract SocketAddress address();     /**     * Returns the data that was to be sent.     *     * @return  The user data. The buffers position will be {@code 0} and its     *          limit will be set to the end of the data.     */    public abstract ByteBuffer buffer();     /**     * Returns the error code.     *     * <P> The errorCode gives the reason why the send failed, and if set, will     * be a SCTP protocol error code as defined in RFC2960 section 3.3.10     *     * @return  The error code     */    public abstract int errorCode();     /**     * Returns the stream number that the messge was to be sent on.     *     * @return  The stream number     */    public abstract int streamNumber();}