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
018 package org.apache.commons.net.ftp;
019 import java.io.IOException;
020
021 /***
022 * FTPConnectionClosedException is used to indicate the premature or
023 * unexpected closing of an FTP connection resulting from a
024 * {@link org.apache.commons.net.ftp.FTPReply#SERVICE_NOT_AVAILABLE FTPReply.SERVICE_NOT_AVAILABLE }
025 * response (FTP reply code 421) to a
026 * failed FTP command. This exception is derived from IOException and
027 * therefore may be caught either as an IOException or specifically as an
028 * FTPConnectionClosedException.
029 * <p>
030 * <p>
031 * @author Daniel F. Savarese
032 * @see FTP
033 * @see FTPClient
034 ***/
035
036 public class FTPConnectionClosedException extends IOException
037 {
038
039 /*** Constructs a FTPConnectionClosedException with no message ***/
040 public FTPConnectionClosedException()
041 {
042 super();
043 }
044
045 /***
046 * Constructs a FTPConnectionClosedException with a specified message.
047 * <p>
048 * @param message The message explaining the reason for the exception.
049 ***/
050 public FTPConnectionClosedException(String message)
051 {
052 super(message);
053 }
054
055 }