1 /*

     2  * Copyright (c) 2013, 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.  Oracle designates this

     8  * particular file as subject to the "Classpath" exception as provided

     9  * by Oracle in the LICENSE file that accompanied this code.

    10  *

    11  * This code is distributed in the hope that it will be useful, but WITHOUT

    12  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or

    13  * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License

    14  * version 2 for more details (a copy is included in the LICENSE file that

    15  * accompanied this code).

    16  *

    17  * You should have received a copy of the GNU General Public License version

    18  * 2 along with this work; if not, write to the Free Software Foundation,

    19  * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.

    20  *

    21  * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA

    22  * or visit www.oracle.com if you need additional information or have any

    23  * questions.

    24  */

    25 

    26 package jdk.jfr.startupargs;

    27 

    28 import java.io.IOException;

    29 import java.nio.file.DirectoryStream;

    30 import java.nio.file.Files;

    31 import java.nio.file.Path;

    32 import java.nio.file.Paths;

    33 import java.util.Iterator;

    34 import java.util.function.Supplier;

    35 

    36 import jdk.jfr.consumer.RecordingFile;

    37 import jdk.test.lib.Asserts;

    38 import jdk.test.lib.process.OutputAnalyzer;

    39 import jdk.test.lib.process.ProcessTools;

    40 

    41 /*

    42  * @test

    43  * @summary Start a FlightRecording with dumponexit. Verify dump exists.

    44  * @key jfr

    45  * @library /test/lib

    46  * @run main/othervm jdk.jfr.startupargs.TestDumpOnExit

    47  */

    48 public class TestDumpOnExit {

    49 

    50     public static void main(String[] args) throws Exception {

    51         Path dumpPath = Paths.get(".", "dumped.jfr");

    52 

    53         // Test without security manager and a file name relative to current directory

    54         testDumponExit(() -> dumpPath,

    55                 "-Xlog:jfr=trace",

    56                 "-XX:StartFlightRecording=filename=./dumped.jfr,dumponexit=true,settings=profile",

    57                 "jdk.jfr.startupargs.TestDumpOnExit$TestMain"

    58         );

    59         // Test with security manager and a file name relative to current directory

    60         testDumponExit(() -> dumpPath,

    61                 "-Xlog:jfr=trace",

    62                 "-XX:StartFlightRecording=filename=./dumped.jfr,dumponexit=true,settings=profile",

    63                 "-Djava.security.manager",

    64                 "jdk.jfr.startupargs.TestDumpOnExit$TestMain"

    65         );

    66         // Test with security manager but without a name

    67         testDumponExit(() -> findJFRFileInCurrentDirectory(),

    68                 "-Xlog:jfr=trace",

    69                 "-XX:StartFlightRecording=dumponexit=true,settings=profile",

    70                 "-Djava.security.manager",

    71                 "jdk.jfr.startupargs.TestDumpOnExit$TestMain"

    72         );

    73     }

    74 

    75     private static Path findJFRFileInCurrentDirectory() {

    76         try {

    77             DirectoryStream<Path> ds = Files.newDirectoryStream(Paths.get("."), "*pid-*.jfr");

    78             Iterator<Path> pathIterator = ds.iterator();

    79             if (!pathIterator.hasNext()) {

    80                 throw new RuntimeException("Could not find jfr file in current directory");

    81             }

    82             return pathIterator.next();

    83         } catch (IOException e) {

    84             throw new RuntimeException("Could not list jfr file in current directory");

    85         }

    86     }

    87 

    88     private static void testDumponExit(Supplier<Path> p,String... args) throws Exception, IOException {

    89         ProcessBuilder pb = ProcessTools.createJavaProcessBuilder(true, args);

    90         OutputAnalyzer output = ProcessTools.executeProcess(pb);

    91         System.out.println(output.getOutput());

    92         output.shouldHaveExitValue(0);

    93         Path dump = p.get();

    94         Asserts.assertTrue(Files.isRegularFile(dump), "No recording dumped " + dump);

    95         System.out.println("Dumped recording size=" + Files.size(dump));

    96         Asserts.assertFalse(RecordingFile.readAllEvents(dump).isEmpty(), "No events in dump");

    97     }

    98 

    99     @SuppressWarnings("unused")

   100     private static class TestMain {

   101         public static void main(String[] args) throws Exception {

   102             System.out.println("Hello from test main");

   103         }

   104     }

   105 

   106 }