View Javadoc
1   /*
2    * Licensed to the Apache Software Foundation (ASF) under one or more
3    * contributor license agreements.  See the NOTICE file distributed with
4    * this work for additional information regarding copyright ownership.
5    * The ASF licenses this file to You under the Apache License, Version 2.0
6    * (the "License"); you may not use this file except in compliance with
7    * the License.  You may obtain a copy of the License at
8    *
9    *      http://www.apache.org/licenses/LICENSE-2.0
10   *
11   * Unless required by applicable law or agreed to in writing, software
12   * distributed under the License is distributed on an "AS IS" BASIS,
13   * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
14   * See the License for the specific language governing permissions and
15   * limitations under the License.
16   */
17  
18  package org.apache.commons.net.ftp;
19  import java.io.IOException;
20  
21  /***
22   * FTPConnectionClosedException is used to indicate the premature or
23   * unexpected closing of an FTP connection resulting from a
24   * {@link org.apache.commons.net.ftp.FTPReply#SERVICE_NOT_AVAILABLE FTPReply.SERVICE_NOT_AVAILABLE }
25   *  response (FTP reply code 421) to a
26   * failed FTP command.  This exception is derived from IOException and
27   * therefore may be caught either as an IOException or specifically as an
28   * FTPConnectionClosedException.
29   *
30   * @see FTP
31   * @see FTPClient
32   ***/
33  
34  public class FTPConnectionClosedException extends IOException
35  {
36  
37      private static final long serialVersionUID = 3500547241659379952L;
38  
39      /*** Constructs a FTPConnectionClosedException with no message ***/
40      public FTPConnectionClosedException()
41      {
42          super();
43      }
44  
45      /***
46       * Constructs a FTPConnectionClosedException with a specified message.
47       *
48       * @param message  The message explaining the reason for the exception.
49       ***/
50      public FTPConnectionClosedException(String message)
51      {
52          super(message);
53      }
54  
55  }