1 /*

     2  * Copyright (c) 2010, 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 /*

    25  * @test

    26  * @bug 6531345

    27  * @summary check for unpacker memory leaks

    28  * @compile -XDignore.symbol.file Utils.java UnpackerMemoryTest.java

    29  * @run main/othervm/timeout=1200 -Xmx32m UnpackerMemoryTest

    30  * @author ksrini

    31  */

    32 

    33 import java.io.File;

    34 import java.io.FileOutputStream;

    35 import java.io.PrintStream;

    36 import java.io.IOException;

    37 import java.util.jar.JarFile;

    38 import java.util.jar.JarOutputStream;

    39 

    40 public class UnpackerMemoryTest {

    41 

    42     private static void createPackFile(File packFile) throws IOException {

    43         File tFile = new File("test.dat");

    44         FileOutputStream fos = null;

    45         PrintStream ps = null;

    46         String jarFileName = Utils.baseName(packFile, Utils.PACK_FILE_EXT)

    47                 + Utils.JAR_FILE_EXT;

    48         JarFile jarFile = null;

    49         try {

    50             fos = new FileOutputStream(tFile);

    51             ps = new PrintStream(fos);

    52             ps.println("A quick brown fox");

    53             Utils.jar("cvf", jarFileName, tFile.getName());

    54             jarFile = new JarFile(jarFileName);

    55             Utils.pack(jarFile, packFile);

    56         } finally {

    57             Utils.close(ps);

    58             tFile.delete();

    59             Utils.close(jarFile);

    60         }

    61     }

    62 

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

    64         String name = "foo";

    65         File packFile = new File(name + Utils.PACK_FILE_EXT);

    66         createPackFile(packFile);

    67         if (!packFile.exists()) {

    68            throw new RuntimeException(packFile + " not found");

    69         }

    70         File jarOut = new File(name + ".out");

    71         for (int i = 0; i < 2000; i++) {

    72             JarOutputStream jarOS = null;

    73             FileOutputStream fos = null;

    74             try {

    75                 fos = new FileOutputStream(jarOut);

    76                 jarOS = new JarOutputStream(fos);

    77                 System.out.println("Unpacking[" + i + "]" + packFile);

    78                 Utils.unpackn(packFile, jarOS);

    79             }  finally {

    80                 Utils.close(jarOS);

    81                 Utils.close(fos);

    82             }

    83         }

    84     }

    85 }

    86