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 * @modules jdk.compiler
29 * @build jdk.test.lib.compiler.CompilerUtils
30 * jdk.test.lib.util.FileUtils
31 * jdk.test.lib.Platform
32 * JarUtils
33 * @run main/othervm GetResourceAsStream
34 */
35
36 import java.io.File;
37 import java.io.IOException;
38 import java.io.InputStream;
39 import java.net.URL;
40 import java.net.URLClassLoader;
41 import java.nio.file.Files;
42 import java.nio.file.Path;
43 import java.nio.file.Paths;
44 import java.nio.file.StandardCopyOption;
45 import java.nio.file.StandardOpenOption;
46 import jdk.test.lib.compiler.CompilerUtils;
47
48 public class GetResourceAsStream extends Common {
49 private static final String WORK_DIR = System.getProperty("user.dir");
50
51 /*
52 * We simply test various scenarios with class/resource files
53 * and make sure the files can be deleted after closing
54 * the loader. Therefore, the test will only really be verified
55 * on Windows. It will still run correctly on other platforms
56 */
57 public static void main (String args[]) throws Exception {
58 setup();
59
60 /* the jar we copy for each test */
61 File srcfile = new File(WORK_DIR, "foo.jar");
62
63 /* the jar we use for the test */
64 File testfile = new File(WORK_DIR, "test.jar");
65
66 copyFile(srcfile, testfile);
67 test(testfile, false, false);
68
69 copyFile(srcfile, testfile);
70 test(testfile, true, false);
71
72 copyFile(srcfile, testfile);
73 test(testfile, true, true);
74
75 // repeat test using a directory of files
76
77 File testdir = new File(WORK_DIR, "testdir");
78 File srcdir = new File(WORK_DIR, "test3");
79
80 copyDir(srcdir, testdir);
81 test(testdir, true, false);
82 }
83
84 // create a loader on jarfile (or directory)
85 // load a class , then look for a resource
86 // then close the loader
87 // check further new classes/resources cannot be loaded
88 // check jar (or dir) can be deleted
89
90 static void test (File file, boolean loadclass, boolean readall)
91 throws Exception
92 {
93 URL[] urls = new URL[] {file.toURI().toURL()};
94 System.out.println ("Doing tests with URL: " + urls[0]);
95 URLClassLoader loader = new URLClassLoader (urls);
96 if (loadclass) {
97 Class testclass = loadClass ("com.foo.TestClass", loader, true);
98 }
99 InputStream s = loader.getResourceAsStream ("hello.txt");
100 s.read();
101 if (readall) {
102 while (s.read() != -1) ;
103 s.close();
104 }
105
106 loader.close ();
107
108 // should not find bye.txt now
109 InputStream s1 = loader.getResourceAsStream("bye.txt");
110 if (s1 != null) {
111 throw new RuntimeException ("closed loader returned resource");
112 }
113
114 // now check we can delete the path
115 rm_minus_rf (file);
116 System.out.println (" ... OK");
117 }
118
119 /**
120 * Prepare jars files for the tests
121 */
122 private static void setup () throws IOException {
123 Path classes = Paths.get(WORK_DIR);
124 Path testSrc = Paths.get(System.getProperty("test.src"),
125 "test1", "com", "foo", "TestClass.java");
126 Path targetDir = classes.resolve("test3");
127 Path testTarget = targetDir.resolve("TestClass.java");
128 Files.createDirectories(targetDir);
129 Files.copy(testSrc, testTarget, StandardCopyOption.REPLACE_EXISTING);
130 // Compile sources for corresponding test
131 CompilerUtils.compile(targetDir, targetDir);
132 // Prepare txt files
133 Files.write(targetDir.resolve("hello.txt"), "Hello world".getBytes(),
134 StandardOpenOption.CREATE);
135 Files.write(targetDir.resolve("bye.txt"), "Bye world".getBytes(),
136 StandardOpenOption.CREATE);
137 // Create jar
138 JarUtils.createJarFile(classes.resolve("foo.jar"), targetDir);
139 }
140 }