/* * 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.fileupload.util;import java.io.IOException;/** * Interface of an object, which may be closed. */public interface Closeable {    /**     * Closes the object.     * @throws IOException An I/O error occurred.     */    void close() throws IOException;    /**     * Returns, whether the object is already closed.     * @return True, if the object is closed, otherwise false.     * @throws IOException An I/O error occurred.     */    boolean isClosed() throws IOException;}