1 /*
   2  * Copyright (c) 2016, 2018, 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 import java.util.ArrayList;
  25 import java.util.List;
  26 import java.io.File;
  27 import java.nio.file.Files;
  28 import java.io.IOException;
  29 import java.io.BufferedInputStream;
  30 import java.util.stream.Collectors;
  31 import java.io.FileInputStream;
  32 
  33 import sun.jvm.hotspot.HotSpotAgent;
  34 import sun.jvm.hotspot.debugger.*;
  35 
  36 import jdk.test.lib.apps.LingeredApp;
  37 import jdk.test.lib.JDKToolLauncher;
  38 import jdk.test.lib.JDKToolFinder;
  39 import jdk.test.lib.Platform;
  40 import jdk.test.lib.process.ProcessTools;
  41 import jdk.test.lib.process.OutputAnalyzer;
  42 import jdk.test.lib.Utils;
  43 import jdk.test.lib.Asserts;
  44 import jdk.test.lib.hprof.HprofParser;
  45 import jdk.test.lib.hprof.parser.HprofReader;
  46 import jdk.test.lib.hprof.parser.PositionDataInputStream;
  47 import jdk.test.lib.hprof.model.Snapshot;
  48 
  49 /**
  50  * @test
  51  * @library /test/lib
  52  * @requires vm.hasSAandCanAttach & 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 
  61 public 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         File heapDumpFile = new File(heapDumpFileName);
 119         if (heapDumpFile.exists()) {
 120             heapDumpFile.delete();
 121         }
 122 
 123         try {
 124             List<String> vmArgs = new ArrayList<String>();
 125             vmArgs.add("-XX:+UsePerfData");
 126             vmArgs.add("-Xmx512m");
 127             vmArgs.addAll(Utils.getVmOptions());
 128 
 129             theApp = new LingeredAppWithInvokeDynamic();
 130             LingeredApp.startApp(vmArgs, theApp);
 131             attachDumpAndVerify(heapDumpFileName, theApp.getPid());
 132         } finally {
 133             LingeredApp.stopApp(theApp);
 134         }
 135     }
 136 }