1 /*
   2  * Copyright (c) 2011, 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 6899919
  27  * @library /lib/testlibrary
  28  * @build jdk.testlibrary.FileUtils
  29  * @run shell build2.sh
  30  * @run main/othervm GetResourceAsStream
  31  */
  32 
  33 import java.io.*;
  34 import java.net.*;
  35 
  36 public class GetResourceAsStream extends Common {
  37 
  38 /*
  39  * We simply test various scenarios with class/resource files
  40  * and make sure the files can be deleted after closing
  41  * the loader. Therefore, the test will only really be verified
  42  * on Windows. It will still run correctly on other platforms
  43  */
  44     public static void main (String args[]) throws Exception {
  45 
  46         String workdir = System.getProperty("test.classes");
  47         if (workdir == null) {
  48             workdir = args[0];
  49         }
  50 
  51         /* the jar we copy for each test */
  52         File srcfile = new File (workdir, "foo.jar");
  53 
  54         /* the jar we use for the test */
  55         File testfile = new File (workdir, "test.jar");
  56 
  57         copyFile (srcfile, testfile);
  58         test (testfile, false, false);
  59 
  60         copyFile (srcfile, testfile);
  61         test (testfile, true, false);
  62 
  63         copyFile (srcfile, testfile);
  64         test (testfile, true, true);
  65 
  66         // repeat test using a directory of files
  67 
  68         File testdir= new File (workdir, "testdir");
  69         File srcdir= new File (workdir, "test3");
  70 
  71         copyDir (srcdir, testdir);
  72         test (testdir, true, false);
  73 
  74     }
  75 
  76     // create a loader on jarfile (or directory)
  77     // load a class , then look for a resource
  78     // then close the loader
  79     // check further new classes/resources cannot be loaded
  80     // check jar (or dir) can be deleted
  81 
  82     static void test (File file, boolean loadclass, boolean readall)
  83         throws Exception
  84     {
  85         URL[] urls = new URL[] {file.toURL()};
  86         System.out.println ("Doing tests with URL: " + urls[0]);
  87         URLClassLoader loader = new URLClassLoader (urls);
  88         if (loadclass) {
  89             Class testclass = loadClass ("com.foo.TestClass", loader, true);
  90         }
  91         InputStream s = loader.getResourceAsStream ("hello.txt");
  92         s.read();
  93         if (readall) {
  94             while (s.read() != -1) ;
  95             s.close();
  96         }
  97 
  98         loader.close ();
  99 
 100         // shouuld not find bye.txt now
 101         InputStream s1 = loader.getResourceAsStream("bye.txt");
 102         if (s1 != null) {
 103             throw new RuntimeException ("closed loader returned resource");
 104         }
 105 
 106         // now check we can delete the path
 107         rm_minus_rf (file);
 108         System.out.println (" ... OK");
 109     }
 110 }