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    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  package org.apache.commons.fileupload.util;
    18
    19  import java.io.IOException;
    20
    21
    22  /**
    23   * Interface of an object, which may be closed.
    24   */
    25  public interface Closeable {
    26      /**
    27       * Closes the object.
    28       * @throws IOException An I/O error occurred.
    29       */
    30      void close() throws IOException;
    31
    32      /**
    33       * Returns, whether the object is already closed.
    34       * @return True, if the object is closed, otherwise false.
    35       * @throws IOException An I/O error occurred.
    36       */
    37      boolean isClosed() throws IOException;
    38  }