SharedStrings.java revision 11833:1cbffa2beba6 
1/*
2 * Copyright (c) 2015, 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 * @summary Check to make sure that shared strings in the bootstrap CDS archive
27 *          are actually shared
28 * Feature support: G1GC only, compressed oops/kptrs, 64-bit os, not on windows
29 * @requires (sun.arch.data.model != "32") & (os.family != "windows")
30 * @requires (vm.opt.UseCompressedOops == null) | (vm.opt.UseCompressedOops == true)
31 * @requires vm.gc.G1
32 * @library /test/lib
33 * @modules java.base/jdk.internal.misc
34 *          java.management
35 * @build SharedStringsWb sun.hotspot.WhiteBox
36 * @run main ClassFileInstaller -jar whitebox.jar sun.hotspot.WhiteBox
37 * @run main SharedStrings
38 */
39import jdk.test.lib.process.ProcessTools;
40import jdk.test.lib.process.OutputAnalyzer;
41
42public class SharedStrings {
43    public static void main(String[] args) throws Exception {
44        boolean test_runtime = true;
45        ProcessBuilder pb = ProcessTools.createJavaProcessBuilder(
46            "-XX:+UnlockDiagnosticVMOptions",
47            "-XX:SharedArchiveFile=./SharedStrings.jsa",
48            "-XX:+UseG1GC",
49            "-XX:+UseCompressedOops",
50            "-XX:+PrintSharedSpaces",
51            // Needed for bootclasspath match, for CDS to work with WhiteBox API
52            "-Xbootclasspath/a:" + ClassFileInstaller.getJarPath("whitebox.jar"),
53            "-Xshare:dump");
54
55        OutputAnalyzer dumpOutput = new OutputAnalyzer(pb.start());
56        try {
57            dumpOutput.shouldContain("Loading classes to share");
58            dumpOutput.shouldContain("Shared string table stats");
59            dumpOutput.shouldHaveExitValue(0);
60        } catch (RuntimeException e) {
61            if (dumpOutput.getOutput().indexOf("Shared strings are excluded") != -1 ||
62                dumpOutput.getOutput().indexOf("Cannot dump shared archive") != -1) {
63                test_runtime = false;
64            } else {
65                throw new RuntimeException("Unexpected failure");
66            }
67        }
68
69        if (test_runtime) {
70            pb = ProcessTools.createJavaProcessBuilder(
71                "-XX:+UnlockDiagnosticVMOptions",
72                "-XX:SharedArchiveFile=./SharedStrings.jsa",
73                // these are required modes for shared strings
74                "-XX:+UseCompressedOops", "-XX:+UseG1GC",
75                // needed for access to white box test API
76                "-Xbootclasspath/a:" + ClassFileInstaller.getJarPath("whitebox.jar"),
77                "-XX:+UnlockDiagnosticVMOptions", "-XX:+WhiteBoxAPI",
78                "-Xshare:on", "-showversion", "SharedStringsWb");
79
80            OutputAnalyzer output = new OutputAnalyzer(pb.start());
81
82            try {
83                output.shouldContain("sharing");
84                output.shouldHaveExitValue(0);
85            } catch (RuntimeException e) {
86                output.shouldContain("Unable to use shared archive");
87                output.shouldHaveExitValue(1);
88            }
89        }
90    }
91}
92