SplitPackage.java revision 15491:6f390eafc676 
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
33import java.net.URL;
34import java.net.URLClassLoader;
35import java.nio.file.Files;
36import java.nio.file.Path;
37import java.nio.file.Paths;
38import java.nio.file.StandardCopyOption;
39import java.util.jar.Manifest;
40
41import org.testng.annotations.BeforeTest;
42import org.testng.annotations.Test;
43import static org.testng.Assert.*;
44
45public 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
103