jdk8-mips64-public/hotspot: test/serviceability/sa/ClhsdbJstackXcompStress.java@e8a0af9fc1cb

8196969: JTreg Failure: serviceability/sa/ClhsdbJstack.java causes NPE
Summary: Account for serialized null scopes in NMethod
Reviewed-by: aph, never, andrew

     1 /*

     2  * Copyright (c) 2019, Red Hat Inc. 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  */

    24 import java.util.ArrayList;

    25 import java.util.Arrays;

    26 import java.util.List;

    27 import java.util.regex.Matcher;

    28 import java.util.regex.Pattern;

    29 import java.util.stream.Collectors;

    31 import jdk.test.lib.JDKToolLauncher;

    32 import jdk.test.lib.Utils;

    33 import jdk.test.lib.apps.LingeredApp;

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

    36 /**

    37  * @bug 8196969

    38  * @requires vm.hasSAandCanAttach

    39  * @library /test/lib

    40  * @run main/othervm ClhsdbJstackXcompStress

    41  */

    42 public class ClhsdbJstackXcompStress {

    44     private static final int MAX_ITERATIONS = 20;

    45     private static final boolean DEBUG = false;

    47     private static boolean isMatchCompiledFrame(List<String> output) {

    48         List<String> filtered = output.stream().filter( s -> s.contains("Compiled frame"))

    49                                                .collect(Collectors.toList());

    50         System.out.println("DEBUG: " + filtered);

    51         return !filtered.isEmpty() &&

    52                filtered.stream().anyMatch( s -> s.contains("LingeredAppWithRecComputation") );

    53     }

    55     private static void runJstackInLoop(LingeredApp app) throws Exception {

    56         boolean anyMatchedCompiledFrame = false;

    57         for (int i = 0; i < MAX_ITERATIONS; i++) {

    58             JDKToolLauncher launcher = JDKToolLauncher

    59                     .createUsingTestJDK("jhsdb");

    60             launcher.addToolArg("jstack");

    61             launcher.addToolArg("--pid");

    62             launcher.addToolArg(Long.toString(app.getPid()));

    64             ProcessBuilder pb = new ProcessBuilder();

    65             pb.command(launcher.getCommand());

    66             Process jhsdb = pb.start();

    67             OutputAnalyzer out = new OutputAnalyzer(jhsdb);

    69             jhsdb.waitFor();

    71             if (DEBUG) {

    72                 System.out.println(out.getStdout());

    73                 System.err.println(out.getStderr());

    74             }

    76             out.stderrShouldBeEmpty(); // NPE's are reported on the err stream

    77             out.stdoutShouldNotContain("Error occurred during stack walking:");

    78             out.stdoutShouldContain(LingeredAppWithRecComputation.THREAD_NAME);

    79             List<String> stdoutList = Arrays.asList(out.getStdout().split("\\R"));

    80             anyMatchedCompiledFrame = anyMatchedCompiledFrame || isMatchCompiledFrame(stdoutList);

    81         }

    82         if (!anyMatchedCompiledFrame) {

    83              throw new RuntimeException("Expected jstack output to contain 'Compiled frame'");

    84         }

    85         System.out.println("DEBUG: jhsdb jstack did not throw NPE, as expected.");

    86     }

    88     public static void main(String... args) throws Exception {

    89         LingeredApp app = null;

    90         try {

    91             List<String> vmArgs = List.of("-Xcomp",

    92                                           "-XX:CompileCommand=dontinline,LingeredAppWithRecComputation.factorial",

    93                                           "-XX:CompileCommand=compileonly,LingeredAppWithRecComputation.testLoop",

    94                                           "-XX:CompileCommand=compileonly,LingeredAppWithRecComputation.factorial");

    95             app = new LingeredAppWithRecComputation();

    96             LingeredApp.startApp(vmArgs, app);

    97             System.out.println("Started LingeredAppWithRecComputation with pid " + app.getPid());

    98             runJstackInLoop(app);

    99             System.out.println("Test Completed");

   100         } catch (Throwable e) {

   101             e.printStackTrace();

   102             throw e;

   103         } finally {

   104             LingeredApp.stopApp(app);

   105         }

   106     }

   107 }

Mercurial > jdk8-mips64-public > hotspot / file revision

test/serviceability/sa/ClhsdbJstackXcompStress.java@e8a0af9fc1cb

test/serviceability/sa/ClhsdbJstackXcompStress.java