ModuleStressGC.java revision 11833:1cbffa2beba6 
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
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22 */
23
24/**
25 * @test
26 * @bug 8159262
27 * @summary layers over the boot layer are repeatedly created, during this iteration, GCs are forced to verify correct walk of module and package lists.
28 * @modules java.base/jdk.internal.misc
29 * @library /test/lib
30 * @compile ../CompilerUtils.java
31 * @run main/othervm ModuleStressGC
32 */
33
34import java.nio.file.Path;
35import java.nio.file.Paths;
36import jdk.test.lib.process.ProcessTools;
37import jdk.test.lib.process.OutputAnalyzer;
38
39public class ModuleStressGC {
40
41    private static final String TEST_SRC = System.getProperty("test.src");
42    private static final String TEST_CLASSES = System.getProperty("test.classes");
43
44    private static final Path SRC_DIR = Paths.get(TEST_SRC, "src");
45    private static final Path MODS_DIR = Paths.get(TEST_CLASSES, "mods");
46
47    /**
48     * Compile two module definitions used by the test, jdk.test and jdk.translet.
49     */
50    public static void main(String[] args) throws Exception {
51
52        boolean compiled;
53        // Compile module jdk.test declaration
54        compiled = CompilerUtils.compile(
55            SRC_DIR.resolve("jdk.test"),
56            MODS_DIR.resolve("jdk.test"));
57        if (!compiled) {
58            throw new RuntimeException("Test failed to compile module jdk.test");
59        }
60
61        // Compile module jdk.translet declaration
62        compiled = CompilerUtils.compile(
63            SRC_DIR.resolve("jdk.translet"),
64            MODS_DIR.resolve("jdk.translet"),
65            "--add-exports=jdk.test/test=jdk.translet",
66            "-p", MODS_DIR.toString());
67        if (!compiled) {
68            throw new RuntimeException("Test failed to compile module jdk.translet");
69        }
70
71        // Sanity check that the test, jdk.test/test/MainGC.java,
72        // correctly walks module jdk.test's reads list and package
73        // test's, defined to module jdk.translet, export list at
74        // GC safepoints.
75        ProcessBuilder pb = ProcessTools.createJavaProcessBuilder(
76            "-Xlog:modules=trace",
77            "-p", MODS_DIR.toString(),
78            "-m", "jdk.test/test.MainGC");
79        OutputAnalyzer oa = new OutputAnalyzer(pb.start());
80        oa.shouldContain("package test defined in module jdk.test, exports list being walked")
81          .shouldContain("module jdk.test reads list being walked")
82          .shouldHaveExitValue(0);
83    }
84}
85