Java tutorial
/* * Licensed to the Apache Software Foundation (ASF) under one or more * contributor license agreements. See the NOTICE file distributed with * this work for additional information regarding copyright ownership. * The ASF licenses this file to You under the Apache License, Version 2.0 * (the "License"); you may not use this file except in compliance with * the License. You may obtain a copy of the License at * * http://www.apache.org/licenses/LICENSE-2.0 * * Unless required by applicable law or agreed to in writing, software * distributed under the License is distributed on an "AS IS" BASIS, * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. * See the License for the specific language governing permissions and * limitations under the License. */ package org.apache.commons.net.ftp; import java.io.IOException; /*** * FTPConnectionClosedException is used to indicate the premature or * unexpected closing of an FTP connection resulting from a * {@link org.apache.commons.net.ftp.FTPReply#SERVICE_NOT_AVAILABLE FTPReply.SERVICE_NOT_AVAILABLE } * response (FTP reply code 421) to a * failed FTP command. This exception is derived from IOException and * therefore may be caught either as an IOException or specifically as an * FTPConnectionClosedException. * <p> * <p> * @see FTP * @see FTPClient ***/ public class FTPConnectionClosedException extends IOException { private static final long serialVersionUID = 3500547241659379952L; /*** Constructs a FTPConnectionClosedException with no message ***/ public FTPConnectionClosedException() { super(); } /*** * Constructs a FTPConnectionClosedException with a specified message. * <p> * @param message The message explaining the reason for the exception. ***/ public FTPConnectionClosedException(String message) { super(message); } }