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