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
24import java.util.ArrayList;
25import java.util.List;
26import java.io.File;
27import java.nio.file.Files;
28import java.io.IOException;
29import java.io.BufferedInputStream;
30import java.util.stream.Collectors;
31import java.io.FileInputStream;
32
33import sun.jvm.hotspot.HotSpotAgent;
34import sun.jvm.hotspot.debugger.*;
35
36import jdk.test.lib.apps.LingeredApp;
37import jdk.test.lib.JDKToolLauncher;
38import jdk.test.lib.JDKToolFinder;
39import jdk.test.lib.Platform;
40import jdk.test.lib.process.ProcessTools;
41import jdk.test.lib.process.OutputAnalyzer;
42import jdk.test.lib.Utils;
43import jdk.test.lib.Asserts;
44import jdk.test.lib.hprof.HprofParser;
45import jdk.test.lib.hprof.parser.HprofReader;
46import jdk.test.lib.hprof.parser.PositionDataInputStream;
47import jdk.test.lib.hprof.model.Snapshot;
48
49/*
50 * @test
51 * @library /test/lib
52 * @requires os.family != "mac"
53 * @modules java.base/jdk.internal.misc
54 *          jdk.hotspot.agent/sun.jvm.hotspot
55 *          jdk.hotspot.agent/sun.jvm.hotspot.utilities
56 *          jdk.hotspot.agent/sun.jvm.hotspot.oops
57 *          jdk.hotspot.agent/sun.jvm.hotspot.debugger
58 * @run main/othervm TestHeapDumpForInvokeDynamic
59 */
60
61public class TestHeapDumpForInvokeDynamic {
62
63    private static LingeredAppWithInvokeDynamic theApp = null;
64
65    private static void verifyHeapDump(String heapFile) {
66
67        File heapDumpFile = new File(heapFile);
68        Asserts.assertTrue(heapDumpFile.exists() && heapDumpFile.isFile(),
69                          "Could not create dump file " + heapDumpFile.getAbsolutePath());
70        try (PositionDataInputStream in = new PositionDataInputStream(
71                new BufferedInputStream(new FileInputStream(heapFile)))) {
72            int i = in.readInt();
73            if (HprofReader.verifyMagicNumber(i)) {
74                Snapshot sshot;
75                HprofReader r = new HprofReader(heapFile, in, 0,
76                                                false, 0);
77                sshot = r.read();
78            } else {
79                throw new IOException("Unrecognized magic number: " + i);
80            }
81        } catch (Exception e) {
82            e.printStackTrace();
83            Asserts.fail("Could not read dump file " + heapFile);
84        } finally {
85            heapDumpFile.delete();
86        }
87    }
88
89    private static void attachDumpAndVerify(String heapDumpFileName,
90                                            long lingeredAppPid) throws Exception {
91
92        JDKToolLauncher launcher = JDKToolLauncher.createUsingTestJDK("jhsdb");
93        launcher.addToolArg("jmap");
94        launcher.addToolArg("--binaryheap");
95        launcher.addToolArg("--dumpfile");
96        launcher.addToolArg(heapDumpFileName);
97        launcher.addToolArg("--pid");
98        launcher.addToolArg(Long.toString(lingeredAppPid));
99
100        ProcessBuilder processBuilder = new ProcessBuilder();
101        processBuilder.command(launcher.getCommand());
102        System.out.println(
103            processBuilder.command().stream().collect(Collectors.joining(" ")));
104
105        OutputAnalyzer SAOutput = ProcessTools.executeProcess(processBuilder);
106        SAOutput.shouldHaveExitValue(0);
107        SAOutput.shouldContain("heap written to");
108        SAOutput.shouldContain(heapDumpFileName);
109        System.out.println(SAOutput.getOutput());
110
111        verifyHeapDump(heapDumpFileName);
112    }
113
114    public static void main (String... args) throws Exception {
115
116        String heapDumpFileName = "lambdaHeapDump.bin";
117
118        if (!Platform.shouldSAAttach()) {
119            System.out.println(
120               "SA attach not expected to work - test skipped.");
121            return;
122        }
123
124        File heapDumpFile = new File(heapDumpFileName);
125        if (heapDumpFile.exists()) {
126            heapDumpFile.delete();
127        }
128
129        try {
130            List<String> vmArgs = new ArrayList<String>();
131            vmArgs.add("-XX:+UsePerfData");
132            vmArgs.addAll(Utils.getVmOptions());
133
134            theApp = new LingeredAppWithInvokeDynamic();
135            LingeredApp.startApp(vmArgs, theApp);
136            attachDumpAndVerify(heapDumpFileName, theApp.getPid());
137        } finally {
138            LingeredApp.stopApp(theApp);
139        }
140    }
141}
142