1 /*

     2  * Copyright (c) 1999, Oracle and/or its affiliates. All rights reserved.

     3  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.

     4  *

     5  * This code is free software; you can redistribute it and/or modify it

     6  * under the terms of the GNU General Public License version 2 only, as

     7  * published by the Free Software Foundation.

     8  *

     9  * This code is distributed in the hope that it will be useful, but WITHOUT

    10  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or

    11  * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License

    12  * version 2 for more details (a copy is included in the LICENSE file that

    13  * accompanied this code).

    14  *

    15  * You should have received a copy of the GNU General Public License version

    16  * 2 along with this work; if not, write to the Free Software Foundation,

    17  * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.

    18  *

    19  * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA

    20  * or visit www.oracle.com if you need additional information or have any

    21  * questions.

    22  */

    23 

    24 /* @test

    25  * @bug 4214795

    26  * @summary Make sure the same inflater will only be recycled

    27  *          once.

    28  */

    29 

    30 import java.io.*;

    31 import java.util.zip.*;

    32 

    33 public class ReleaseInflater {

    34 

    35     public static void main(String[] args) throws Exception {

    36         ZipFile zf = new ZipFile(new File(System.getProperty("test.src"),

    37                                           "input.jar"));

    38         ZipEntry e = zf.getEntry("ReleaseInflater.java");

    39 

    40         InputStream in1 = zf.getInputStream(e);

    41         // close the stream, the inflater will be released

    42         in1.close();

    43         // close the stream again, should be no-op

    44         in1.close();

    45 

    46         // create two new streams, allocating inflaters

    47         InputStream in2 = zf.getInputStream(e);

    48         InputStream in3 = zf.getInputStream(e);

    49 

    50         // check to see if they influence each other

    51         if (in2.read() != in3.read()) {

    52             throw new Exception("Stream is corrupted!");

    53         }

    54     }

    55 }