1 /*
   2  * Copyright (c) 2016, 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 8153665
  27  * @summary Test two URLClassLoader define Package object of the same name
  28  * @library /test/lib
  29  * @build jdk.test.lib.compiler.CompilerUtils
  30  * @modules jdk.compiler
  31  * @run testng SplitPackage
  32  */
  33 
  34 import java.net.URL;
  35 import java.net.URLClassLoader;
  36 import java.nio.file.Files;
  37 import java.nio.file.Path;
  38 import java.nio.file.Paths;
  39 import java.nio.file.StandardCopyOption;
  40 import java.util.jar.Manifest;
  41 import jdk.test.lib.compiler.CompilerUtils;
  42 
  43 import org.testng.annotations.BeforeTest;
  44 import org.testng.annotations.Test;
  45 import static org.testng.Assert.*;
  46 
  47 public class SplitPackage {
  48     private static final Path SRC_DIR = Paths.get(System.getProperty("test.src", "."));
  49     private static final Path FOO_DIR = Paths.get("foo");
  50     private static final Path BAR_DIR = Paths.get("bar");
  51 
  52     @BeforeTest
  53     private void setup() throws Exception {
  54         Files.createDirectory(BAR_DIR);
  55 
  56         Path pkgDir = Paths.get("p");
  57         // compile classes in package p
  58         assertTrue(CompilerUtils.compile(SRC_DIR.resolve(pkgDir), BAR_DIR));
  59 
  60         // move p.Foo to a different directory
  61         Path foo = pkgDir.resolve("Foo.class");
  62         Files.createDirectories(FOO_DIR.resolve(pkgDir));
  63         Files.move(BAR_DIR.resolve(foo), FOO_DIR.resolve(foo),
  64                    StandardCopyOption.REPLACE_EXISTING);
  65     }
  66 
  67     @Test
  68     public void test() throws Exception {
  69         URLClassLoader loader1 = new URLClassLoader(new URL[] {
  70             FOO_DIR.toUri().toURL()
  71         });
  72         Loader loader2 = new Loader(new URL[] {
  73             BAR_DIR.toUri().toURL()
  74         }, loader1);
  75 
  76         Class<?> foo = Class.forName("p.Foo", true, loader2);
  77         Class<?> bar = Class.forName("p.Bar", true, loader2);
  78         Class<?> baz = Class.forName("p.Baz", true, loader2);
  79 
  80         Package pForFoo = loader1.getDefinedPackage("p");
  81         Package pForBar = loader2.getDefinedPackage("p");
  82 
  83         assertEquals(pForFoo.getName(), pForBar.getName());
  84         assertTrue(pForFoo != pForBar);
  85 
  86         try {
  87             loader2.defineSplitPackage("p");
  88         } catch (IllegalArgumentException e) {
  89 
  90         }
  91     }
  92 
  93     static class Loader extends URLClassLoader {
  94         Loader(URL[] urls, URLClassLoader parent) {
  95             super(urls, parent);
  96         }
  97 
  98         public Package defineSplitPackage(String name) {
  99             Manifest manifest = new Manifest();
 100             return super.definePackage(name, manifest, null);
 101         }
 102     }
 103 }
 104