/* * 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 java.net; import java.io.IOException; /** * Thrown when a hostname can not be resolved. */ public class UnknownHostException extends IOException { private static final long serialVersionUID = -4639126076052875403L; /** * Constructs a new {@code UnknownHostException} instance with no detail message. * Callers should usually supply a detail message. */ public UnknownHostException() { } /** * Constructs a new {@code UnknownHostException} instance with the given detail message. * The detail message should generally contain the hostname and a reason for the failure, * if known. * * @param detailMessage * the detail message for this exception. */ public UnknownHostException(String detailMessage) { super(detailMessage); } }