1 /*
   2  * Copyright (c) 2007, 2016, 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 6521334 6712743 8007902 8151901
  27   * @requires (sun.arch.data.model == "64" & os.maxMemory >= 4g)
  28   * @summary test general packer/unpacker functionality
  29   *          using native and java unpackers
  30   * @compile -XDignore.symbol.file Utils.java Pack200Test.java
  31   * @run main/othervm/timeout=1200 -Xmx1280m -Xshare:off Pack200Test
  32   */
  33 
  34 import java.util.*;
  35 import java.io.*;
  36 import java.lang.management.ManagementFactory;
  37 import java.lang.management.MemoryMXBean;
  38 import java.util.jar.*;
  39 
  40 /**
  41  * Tests the packing/unpacking via the APIs.
  42  */
  43 public class Pack200Test {
  44 
  45     private static ArrayList <File> jarList = new ArrayList<File>();
  46     static final MemoryMXBean mmxbean = ManagementFactory.getMemoryMXBean();
  47     static final long m0 = getUsedMemory();
  48     static final int LEAK_TOLERANCE = 21000; // OS and GC related variations.
  49     // enable leak checks only if required, GC charecteristics vary on
  50     // platforms and this may not yield consistent results
  51     static final boolean LEAK_CHECK = Boolean.getBoolean("Pack200Test.enableLeakCheck");
  52 
  53     /** Creates a new instance of Pack200Test */
  54     private Pack200Test() {}
  55 
  56     static long getUsedMemory() {
  57         mmxbean.gc();
  58         mmxbean.gc();
  59         mmxbean.gc();
  60         return mmxbean.getHeapMemoryUsage().getUsed()/1024;
  61     }
  62 
  63     private static void leakCheck() throws Exception {
  64         if (!LEAK_CHECK)
  65             return;
  66         long diff = getUsedMemory() - m0;
  67         System.out.println("  Info: memory diff = " + diff + "K");
  68         if (diff > LEAK_TOLERANCE) {
  69             throw new Exception("memory leak detected " + diff);
  70         }
  71     }
  72 
  73     private static void doPackUnpack() throws IOException {
  74         for (File in : jarList) {
  75             JarOutputStream javaUnpackerStream = null;
  76             JarOutputStream nativeUnpackerStream = null;
  77             JarFile jarFile = null;
  78             try {
  79                 jarFile = new JarFile(in);
  80 
  81                 // Write out to a jtreg scratch area
  82                 File packFile = new File(in.getName() + Utils.PACK_FILE_EXT);
  83 
  84                 System.out.println("Packing [" + in.toString() + "]");
  85                 // Call the packer
  86                 Utils.pack(jarFile, packFile);
  87                 System.out.println("Done Packing [" + in.toString() + "]");
  88                 jarFile.close();
  89                 System.out.println("Start leak check");
  90                 leakCheck();
  91 
  92                 System.out.println("  Unpacking using java unpacker");
  93                 File javaUnpackedJar = new File("java-" + in.getName());
  94                 // Write out to current directory, jtreg will setup a scratch area
  95                 javaUnpackerStream = new JarOutputStream(
  96                         new FileOutputStream(javaUnpackedJar));
  97                 Utils.unpackj(packFile, javaUnpackerStream);
  98                 javaUnpackerStream.close();
  99                 System.out.println("  Testing...java unpacker");
 100                 leakCheck();
 101                 // Ok we have unpacked the file, lets test it.
 102                 Utils.doCompareVerify(in.getAbsoluteFile(), javaUnpackedJar);
 103 
 104                 System.out.println("  Unpacking using native unpacker");
 105                 // Write out to current directory
 106                 File nativeUnpackedJar = new File("native-" + in.getName());
 107                 nativeUnpackerStream = new JarOutputStream(
 108                         new FileOutputStream(nativeUnpackedJar));
 109                 Utils.unpackn(packFile, nativeUnpackerStream);
 110                 nativeUnpackerStream.close();
 111                 System.out.println("  Testing...native unpacker");
 112                 leakCheck();
 113                 // the unpackers (native and java) should produce identical bits
 114                 // so we use use bit wise compare, the verification compare is
 115                 // very expensive wrt. time.
 116                 Utils.doCompareBitWise(javaUnpackedJar, nativeUnpackedJar);
 117                 System.out.println("Done.");
 118             } catch (Exception e) {
 119                 throw new RuntimeException(e);
 120             } finally {
 121                 Utils.close(nativeUnpackerStream);
 122                 Utils.close(javaUnpackerStream);
 123                 Utils.close((Closeable) jarFile);
 124             }
 125         }
 126         Utils.cleanup(); // cleanup artifacts, if successful run
 127     }
 128 
 129     /**
 130      * @param args the command line arguments
 131      */
 132     public static void main(String[] args) throws Exception {
 133         // select the jars carefully, adding more jars will increase the
 134         // testing time, especially for jprt.
 135         jarList.add(Utils.createRtJar());
 136         jarList.add(Utils.getGoldenJar());
 137         System.out.println(jarList);
 138         doPackUnpack();
 139     }
 140 }