1 /*
   2  * Copyright (c) 2011, 2017, 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 /test/lib
  28  * @run shell build2.sh
  29  * @run main/othervm GetResourceAsStream
  30  */
  31 
  32 import java.io.*;
  33 import java.net.*;
  34 
  35 public class GetResourceAsStream extends Common {
  36 
  37 /*
  38  * We simply test various scenarios with class/resource files
  39  * and make sure the files can be deleted after closing
  40  * the loader. Therefore, the test will only really be verified
  41  * on Windows. It will still run correctly on other platforms
  42  */
  43     public static void main (String args[]) throws Exception {
  44 
  45         String workdir = System.getProperty("test.classes");
  46         if (workdir == null) {
  47             workdir = args[0];
  48         }
  49 
  50         /* the jar we copy for each test */
  51         File srcfile = new File (workdir, "foo.jar");
  52 
  53         /* the jar we use for the test */
  54         File testfile = new File (workdir, "test.jar");
  55 
  56         copyFile (srcfile, testfile);
  57         test (testfile, false, false);
  58 
  59         copyFile (srcfile, testfile);
  60         test (testfile, true, false);
  61 
  62         copyFile (srcfile, testfile);
  63         test (testfile, true, true);
  64 
  65         // repeat test using a directory of files
  66 
  67         File testdir= new File (workdir, "testdir");
  68         File srcdir= new File (workdir, "test3");
  69 
  70         copyDir (srcdir, testdir);
  71         test (testdir, true, false);
  72 
  73     }
  74 
  75     // create a loader on jarfile (or directory)
  76     // load a class , then look for a resource
  77     // then close the loader
  78     // check further new classes/resources cannot be loaded
  79     // check jar (or dir) can be deleted
  80 
  81     static void test (File file, boolean loadclass, boolean readall)
  82         throws Exception
  83     {
  84         URL[] urls = new URL[] {file.toURL()};
  85         System.out.println ("Doing tests with URL: " + urls[0]);
  86         URLClassLoader loader = new URLClassLoader (urls);
  87         if (loadclass) {
  88             Class testclass = loadClass ("com.foo.TestClass", loader, true);
  89         }
  90         InputStream s = loader.getResourceAsStream ("hello.txt");
  91         s.read();
  92         if (readall) {
  93             while (s.read() != -1) ;
  94             s.close();
  95         }
  96 
  97         loader.close ();
  98 
  99         // shouuld not find bye.txt now
 100         InputStream s1 = loader.getResourceAsStream("bye.txt");
 101         if (s1 != null) {
 102             throw new RuntimeException ("closed loader returned resource");
 103         }
 104 
 105         // now check we can delete the path
 106         rm_minus_rf (file);
 107         System.out.println (" ... OK");
 108     }
 109 }