| /* |
| * Copyright (c) 2019, Red Hat Inc. All rights reserved. |
| * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. |
| * |
| * This code is free software; you can redistribute it and/or modify it |
| * under the terms of the GNU General Public License version 2 only, as |
| * published by the Free Software Foundation. |
| * |
| * This code is distributed in the hope that it will be useful, but WITHOUT |
| * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or |
| * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License |
| * version 2 for more details (a copy is included in the LICENSE file that |
| * accompanied this code). |
| * |
| * You should have received a copy of the GNU General Public License version |
| * 2 along with this work; if not, write to the Free Software Foundation, |
| * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. |
| * |
| * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA |
| * or visit www.oracle.com if you need additional information or have any |
| * questions. |
| */ |
| |
| import java.util.ArrayList; |
| import java.util.Arrays; |
| import java.util.List; |
| import java.util.regex.Matcher; |
| import java.util.regex.Pattern; |
| import java.util.stream.Collectors; |
| |
| import jdk.test.lib.JDKToolLauncher; |
| import jdk.test.lib.Utils; |
| import jdk.test.lib.apps.LingeredApp; |
| import jdk.test.lib.process.OutputAnalyzer; |
| |
| /** |
| * @test |
| * @bug 8196969 |
| * @requires vm.hasSAandCanAttach |
| * @library /test/lib |
| * @run main/othervm ClhsdbJstackXcompStress |
| */ |
| public class ClhsdbJstackXcompStress { |
| |
| private static final int MAX_ITERATIONS = 20; |
| private static final boolean DEBUG = false; |
| |
| private static boolean isMatchCompiledFrame(List<String> output) { |
| List<String> filtered = output.stream().filter( s -> s.contains("Compiled frame")) |
| .collect(Collectors.toList()); |
| System.out.println("DEBUG: " + filtered); |
| return !filtered.isEmpty() && |
| filtered.stream().anyMatch( s -> s.contains("LingeredAppWithRecComputation") ); |
| } |
| |
| private static void runJstackInLoop(LingeredApp app) throws Exception { |
| boolean anyMatchedCompiledFrame = false; |
| for (int i = 0; i < MAX_ITERATIONS; i++) { |
| JDKToolLauncher launcher = JDKToolLauncher |
| .createUsingTestJDK("jhsdb"); |
| launcher.addToolArg("jstack"); |
| launcher.addToolArg("--pid"); |
| launcher.addToolArg(Long.toString(app.getPid())); |
| |
| ProcessBuilder pb = new ProcessBuilder(); |
| pb.command(launcher.getCommand()); |
| Process jhsdb = pb.start(); |
| OutputAnalyzer out = new OutputAnalyzer(jhsdb); |
| |
| jhsdb.waitFor(); |
| |
| if (DEBUG) { |
| System.out.println(out.getStdout()); |
| System.err.println(out.getStderr()); |
| } |
| |
| out.stderrShouldBeEmpty(); // NPE's are reported on the err stream |
| out.stdoutShouldNotContain("Error occurred during stack walking:"); |
| out.stdoutShouldContain(LingeredAppWithRecComputation.THREAD_NAME); |
| List<String> stdoutList = Arrays.asList(out.getStdout().split("\\R")); |
| anyMatchedCompiledFrame = anyMatchedCompiledFrame || isMatchCompiledFrame(stdoutList); |
| } |
| if (!anyMatchedCompiledFrame) { |
| throw new RuntimeException("Expected jstack output to contain 'Compiled frame'"); |
| } |
| System.out.println("DEBUG: jhsdb jstack did not throw NPE, as expected."); |
| } |
| |
| public static void main(String... args) throws Exception { |
| LingeredApp app = null; |
| try { |
| List<String> vmArgs = List.of("-Xcomp", |
| "-XX:CompileCommand=dontinline,LingeredAppWithRecComputation.factorial", |
| "-XX:CompileCommand=compileonly,LingeredAppWithRecComputation.testLoop", |
| "-XX:CompileCommand=compileonly,LingeredAppWithRecComputation.factorial"); |
| app = new LingeredAppWithRecComputation(); |
| LingeredApp.startApp(vmArgs, app); |
| System.out.println("Started LingeredAppWithRecComputation with pid " + app.getPid()); |
| runJstackInLoop(app); |
| System.out.println("Test Completed"); |
| } catch (Throwable e) { |
| e.printStackTrace(); |
| throw e; |
| } finally { |
| LingeredApp.stopApp(app); |
| } |
| } |
| } |