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.util.JarUtils 32 * jdk.test.lib.Platform 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 import jdk.test.lib.util.JarUtils; 48 49 public class GetResourceAsStream extends Common { 50 private static final String WORK_DIR = System.getProperty("user.dir"); 51 52 /* 53 * We simply test various scenarios with class/resource files 54 * and make sure the files can be deleted after closing 55 * the loader. Therefore, the test will only really be verified 56 * on Windows. It will still run correctly on other platforms 57 */ 58 public static void main (String args[]) throws Exception { 59 setup(); 60 61 /* the jar we copy for each test */ 62 File srcfile = new File(WORK_DIR, "foo.jar"); 63 64 /* the jar we use for the test */ 65 File testfile = new File(WORK_DIR, "test.jar"); 66 67 copyFile(srcfile, testfile); 68 test(testfile, false, false); 69 70 copyFile(srcfile, testfile); 71 test(testfile, true, false); 72 73 copyFile(srcfile, testfile); 74 test(testfile, true, true); 75 76 // repeat test using a directory of files 77 78 File testdir = new File(WORK_DIR, "testdir"); 79 File srcdir = new File(WORK_DIR, "test3"); 80 81 copyDir(srcdir, testdir); 82 test(testdir, true, false); 83 } 84 85 // create a loader on jarfile (or directory) 86 // load a class , then look for a resource 87 // then close the loader 88 // check further new classes/resources cannot be loaded 89 // check jar (or dir) can be deleted 90 91 static void test (File file, boolean loadclass, boolean readall) 92 throws Exception 93 { 94 URL[] urls = new URL[] {file.toURI().toURL()}; 95 System.out.println ("Doing tests with URL: " + urls[0]); 96 URLClassLoader loader = new URLClassLoader (urls); 97 if (loadclass) { 98 Class testclass = loadClass ("com.foo.TestClass", loader, true); 99 } 100 InputStream s = loader.getResourceAsStream ("hello.txt"); 101 s.read(); 102 if (readall) { 103 while (s.read() != -1) ; 104 s.close(); 105 } 106 107 loader.close (); 108 109 // should not find bye.txt now 110 InputStream s1 = loader.getResourceAsStream("bye.txt"); 111 if (s1 != null) { 112 throw new RuntimeException ("closed loader returned resource"); 113 } 114 115 // now check we can delete the path 116 rm_minus_rf (file); 117 System.out.println (" ... OK"); 118 } 119 120 /** 121 * Prepare jars files for the tests 122 */ 123 private static void setup () throws IOException { 124 Path classes = Paths.get(WORK_DIR); 125 Path testSrc = Paths.get(System.getProperty("test.src"), 126 "test1", "com", "foo", "TestClass.java"); 127 Path targetDir = classes.resolve("test3"); 128 Path testTarget = targetDir.resolve("TestClass.java"); 129 Files.createDirectories(targetDir); 130 Files.copy(testSrc, testTarget, StandardCopyOption.REPLACE_EXISTING); 131 // Compile sources for corresponding test 132 CompilerUtils.compile(targetDir, targetDir); 133 // Prepare txt files 134 Files.write(targetDir.resolve("hello.txt"), "Hello world".getBytes(), 135 StandardOpenOption.CREATE); 136 Files.write(targetDir.resolve("bye.txt"), "Bye world".getBytes(), 137 StandardOpenOption.CREATE); 138 // Create jar 139 JarUtils.createJarFile(classes.resolve("foo.jar"), targetDir); 140 } 141 }