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 * <p> 30 * <p> 31 * @see FTP 32 * @see FTPClient 33 ***/ 34 35 public class FTPConnectionClosedException extends IOException 36 { 37 38 private static final long serialVersionUID = 3500547241659379952L; 39 40 /*** Constructs a FTPConnectionClosedException with no message ***/ 41 public FTPConnectionClosedException() 42 { 43 super(); 44 } 45 46 /*** 47 * Constructs a FTPConnectionClosedException with a specified message. 48 * <p> 49 * @param message The message explaining the reason for the exception. 50 ***/ 51 public FTPConnectionClosedException(String message) 52 { 53 super(message); 54 } 55 56 }