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  * @run testng SplitPackage

    31  */

    32 

    33 import java.net.URL;

    34 import java.net.URLClassLoader;

    35 import java.nio.file.Files;

    36 import java.nio.file.Path;

    37 import java.nio.file.Paths;

    38 import java.nio.file.StandardCopyOption;

    39 import java.util.jar.Manifest;

    40 

    41 import org.testng.annotations.BeforeTest;

    42 import org.testng.annotations.Test;

    43 import static org.testng.Assert.*;

    44 

    45 public class SplitPackage {

    46     private static final Path SRC_DIR = Paths.get(System.getProperty("test.src", "."));

    47     private static final Path FOO_DIR = Paths.get("foo");

    48     private static final Path BAR_DIR = Paths.get("bar");

    49 

    50     @BeforeTest

    51     private void setup() throws Exception {

    52         Files.createDirectory(BAR_DIR);

    53 

    54         Path pkgDir = Paths.get("p");

    55         // compile classes in package p

    56         assertTrue(CompilerUtils.compile(SRC_DIR.resolve(pkgDir), BAR_DIR));

    57 

    58         // move p.Foo to a different directory

    59         Path foo = pkgDir.resolve("Foo.class");

    60         Files.createDirectories(FOO_DIR.resolve(pkgDir));

    61         Files.move(BAR_DIR.resolve(foo), FOO_DIR.resolve(foo),

    62                    StandardCopyOption.REPLACE_EXISTING);

    63     }

    64 

    65     @Test

    66     public void test() throws Exception {

    67         URLClassLoader loader1 = new URLClassLoader(new URL[] {

    68             FOO_DIR.toUri().toURL()

    69         });

    70         Loader loader2 = new Loader(new URL[] {

    71             BAR_DIR.toUri().toURL()

    72         }, loader1);

    73 

    74         Class<?> foo = Class.forName("p.Foo", true, loader2);

    75         Class<?> bar = Class.forName("p.Bar", true, loader2);

    76         Class<?> baz = Class.forName("p.Baz", true, loader2);

    77 

    78         Package pForFoo = loader1.getDefinedPackage("p");

    79         Package pForBar = loader2.getDefinedPackage("p");

    80 

    81         assertEquals(pForFoo.getName(), pForBar.getName());

    82         assertTrue(pForFoo != pForBar);

    83 

    84         try {

    85             loader2.defineSplitPackage("p");

    86         } catch (IllegalArgumentException e) {

    87 

    88         }

    89     }

    90 

    91     static class Loader extends URLClassLoader {

    92         Loader(URL[] urls, URLClassLoader parent) {

    93             super(urls, parent);

    94         }

    95 

    96         public Package defineSplitPackage(String name) {

    97             Manifest manifest = new Manifest();

    98             return super.definePackage(name, manifest, null);

    99         }

   100     }

   101 }

   102