1 /*

     2  * Copyright (c) 2013, 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 /*

    26  * @test

    27  * @run main/timeout=600 TestNormal

    28  * @bug 8020802

    29  * @summary Need an ability to create jar files that are invariant to the pack200 packing/unpacking

    30  * @author Alexander Zuev

    31  */

    32 

    33 import java.io.*;

    34 import java.util.Collections;

    35 import java.util.Properties;

    36 import java.util.jar.JarEntry;

    37 import java.util.jar.JarFile;

    38 

    39 public class TestNormal {

    40     private static String FS = File.separator;

    41 

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

    43         Properties p = System.getProperties();

    44         String java_home = p.getProperty("test.jdk");

    45         String dtjar = java_home + File.separator + "lib"

    46                 + File.separator + "dt.jar";

    47 

    48         File folder = new File("dt");

    49         if (folder.exists()) {

    50             delete(folder);

    51         }

    52         folder.mkdir();

    53 

    54         try {

    55             extractJar(new JarFile(dtjar), folder);

    56             execJavaCommand(java_home, "jar cnf normalized.jar -C dt .");

    57             execJavaCommand(java_home, "jar cf original.jar -C dt .");

    58             execJavaCommand(java_home, "pack200 -r repacked.jar original.jar");

    59             compareJars(new JarFile("normalized.jar"), new JarFile("repacked.jar"));

    60         } finally {

    61             String[] cleanupList = {"dt", "normalized.jar", "original.jar", "repacked.jar"};

    62             for (String s : cleanupList) {

    63                 delete(new File(s));

    64             }

    65         }

    66     }

    67 

    68     public static void execJavaCommand(String java_home, String cmd) throws Exception {

    69         Process proc = Runtime.getRuntime().exec(java_home + FS + "bin" + FS + cmd);

    70         String s;

    71         BufferedReader stdInput =

    72                 new BufferedReader(new InputStreamReader(proc.getInputStream()));

    73         BufferedReader stdError =

    74                 new BufferedReader(new InputStreamReader(proc.getErrorStream()));

    75         while ((s = stdInput.readLine()) != null) {

    76             System.out.println(s);

    77         }

    78         while ((s = stdError.readLine()) != null) {

    79             System.err.println(s);

    80         }

    81     }

    82 

    83     public static void compareJars(JarFile jf1, JarFile jf2) throws Exception {

    84         try {

    85             if (jf1.size() != jf2.size()) {

    86                 throw new Exception("Jars " + jf1.getName() + " and " + jf2.getName()

    87                         + " have different number of entries");

    88             }

    89             for (JarEntry elem1 : Collections.list(jf1.entries())) {

    90                 JarEntry elem2 = jf2.getJarEntry(elem1.getName());

    91                 if (elem2 == null) {

    92                     throw new Exception("Element " + elem1.getName() + " is missing from " + jf2.getName());

    93                 }

    94                 if (!elem1.isDirectory() && elem1.getCrc() != elem2.getCrc()) {

    95                     throw new Exception("The crc of " + elem1.getName() + " is different.");

    96                 }

    97             }

    98         } finally {

    99             jf1.close();

   100             jf2.close();

   101         }

   102     }

   103 

   104     public static void extractJar(JarFile jf, File where) throws Exception {

   105         for (JarEntry file : Collections.list(jf.entries())) {

   106             File out = new File(where, file.getName());

   107             if (file.isDirectory()) {

   108                 out.mkdirs();

   109                 continue;

   110             }

   111             File parent = out.getParentFile();

   112             if (parent != null && !parent.exists()) {

   113                 parent.mkdirs();

   114             }

   115             InputStream is = null;

   116             OutputStream os = null;

   117             try {

   118                 is = jf.getInputStream(file);

   119                 os = new FileOutputStream(out);

   120                 while (is.available() > 0) {

   121                     os.write(is.read());

   122                 }

   123             } finally {

   124                 if (is != null) {

   125                     is.close();

   126                 }

   127                 if (os != null) {

   128                     os.close();

   129                 }

   130             }

   131         }

   132     }

   133 

   134     static void delete(File f) throws IOException {

   135         if (!f.exists()) {

   136             return;

   137         }

   138         if (f.isDirectory()) {

   139             for (File c : f.listFiles()) {

   140                 delete(c);

   141             }

   142         }

   143         if (!f.delete()) {

   144             throw new FileNotFoundException("Failed to delete file: " + f);

   145         }

   146     }

   147 }