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