001/*
002 * Licensed to the Apache Software Foundation (ASF) under one or more
003 * contributor license agreements.  See the NOTICE file distributed with
004 * this work for additional information regarding copyright ownership.
005 * The ASF licenses this file to You under the Apache License, Version 2.0
006 * (the "License"); you may not use this file except in compliance with
007 * the License.  You may obtain a copy of the License at
008 *
009 *      http://www.apache.org/licenses/LICENSE-2.0
010 *
011 * Unless required by applicable law or agreed to in writing, software
012 * distributed under the License is distributed on an "AS IS" BASIS,
013 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
014 * See the License for the specific language governing permissions and
015 * limitations under the License.
016 */
017
018package org.apache.commons.net.smtp;
019
020import java.io.IOException;
021
022/***
023 * SMTPConnectionClosedException is used to indicate the premature or
024 * unexpected closing of an SMTP connection resulting from a
025 * {@link org.apache.commons.net.smtp.SMTPReply#SERVICE_NOT_AVAILABLE SMTPReply.SERVICE_NOT_AVAILABLE }
026 *  response (SMTP reply code 421) to a
027 * failed SMTP command.  This exception is derived from IOException and
028 * therefore may be caught either as an IOException or specifically as an
029 * SMTPConnectionClosedException.
030 *
031 *
032 * @see SMTP
033 * @see SMTPClient
034 ***/
035
036public final class SMTPConnectionClosedException extends IOException
037{
038
039    private static final long serialVersionUID = 626520434326660627L;
040
041    /*** Constructs a SMTPConnectionClosedException with no message ***/
042    public SMTPConnectionClosedException()
043    {
044        super();
045    }
046
047    /***
048     * Constructs a SMTPConnectionClosedException with a specified message.
049     *
050     * @param message  The message explaining the reason for the exception.
051     ***/
052    public SMTPConnectionClosedException(String message)
053    {
054        super(message);
055    }
056
057}