| /* |
| * Copyright (c) 2017, 2018, Oracle and/or its affiliates. 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.Scanner; |
| import java.util.List; |
| import java.io.File; |
| import java.io.IOException; |
| import java.util.stream.Collectors; |
| import java.io.OutputStream; |
| import jdk.test.lib.apps.LingeredApp; |
| import jdk.test.lib.JDKToolLauncher; |
| import jdk.test.lib.Platform; |
| import jdk.test.lib.process.ProcessTools; |
| import jdk.test.lib.process.OutputAnalyzer; |
| import jdk.test.lib.Utils; |
| import jdk.test.lib.Asserts; |
| |
| /** |
| * @test |
| * @requires vm.hasSAandCanAttach |
| * @library /test/lib |
| * @run main/othervm TestClhsdbJstackLock |
| */ |
| |
| public class TestClhsdbJstackLock { |
| |
| private static final String JSTACK_OUT_FILE = "jstack_out.txt"; |
| |
| private static void verifyJStackOutput() throws Exception { |
| |
| Exception unexpected = null; |
| File jstackFile = new File(JSTACK_OUT_FILE); |
| Asserts.assertTrue(jstackFile.exists() && jstackFile.isFile(), |
| "File with jstack output not created: " + |
| jstackFile.getAbsolutePath()); |
| try { |
| Scanner scanner = new Scanner(jstackFile); |
| |
| boolean classLockOwnerFound = false; |
| boolean classLockWaiterFound = false; |
| boolean objectLockOwnerFound = false; |
| boolean primitiveLockOwnerFound = false; |
| |
| while (scanner.hasNextLine()) { |
| String line = scanner.nextLine(); |
| System.out.println(line); |
| |
| if (line.contains("missing reason for ")) { |
| unexpected = new RuntimeException("Unexpected msg: missing reason for "); |
| break; |
| } |
| if (line.matches("^\\s+- locked <0x[0-9a-f]+> \\(a java\\.lang\\.Class for LingeredAppWithLock\\)$")) { |
| classLockOwnerFound = true; |
| } |
| if (line.matches("^\\s+- waiting to lock <0x[0-9a-f]+> \\(a java\\.lang\\.Class for LingeredAppWithLock\\)$")) { |
| classLockWaiterFound = true; |
| } |
| if (line.matches("^\\s+- locked <0x[0-9a-f]+> \\(a java\\.lang\\.Thread\\)$")) { |
| objectLockOwnerFound = true; |
| } |
| if (line.matches("^\\s+- locked <0x[0-9a-f]+> \\(a java\\.lang\\.Class for int\\)$")) { |
| primitiveLockOwnerFound = true; |
| } |
| } |
| |
| if (!classLockOwnerFound || !classLockWaiterFound || |
| !objectLockOwnerFound || !primitiveLockOwnerFound) { |
| unexpected = new RuntimeException( |
| "classLockOwnerFound = " + classLockOwnerFound + |
| ", classLockWaiterFound = " + classLockWaiterFound + |
| ", objectLockOwnerFound = " + objectLockOwnerFound + |
| ", primitiveLockOwnerFound = " + primitiveLockOwnerFound); |
| } |
| if (unexpected != null) { |
| throw unexpected; |
| } |
| } catch (Exception ex) { |
| throw new RuntimeException("Test ERROR " + ex, ex); |
| } finally { |
| jstackFile.delete(); |
| } |
| } |
| |
| private static void startClhsdbForLock(long lingeredAppPid) throws Exception { |
| |
| Process p; |
| JDKToolLauncher launcher = JDKToolLauncher.createUsingTestJDK("jhsdb"); |
| launcher.addToolArg("clhsdb"); |
| launcher.addToolArg("--pid"); |
| launcher.addToolArg(Long.toString(lingeredAppPid)); |
| |
| ProcessBuilder pb = new ProcessBuilder(); |
| pb.command(launcher.getCommand()); |
| System.out.println(pb.command().stream().collect(Collectors.joining(" "))); |
| |
| try { |
| p = pb.start(); |
| } catch (Exception attachE) { |
| throw new Error("Couldn't start jhsdb or attach to LingeredApp : " + attachE); |
| } |
| |
| // Issue the 'jstack' input at the clhsdb prompt. |
| OutputStream input = p.getOutputStream(); |
| String str = "jstack > " + JSTACK_OUT_FILE + "\nquit\n"; |
| try { |
| input.write(str.getBytes()); |
| input.flush(); |
| } catch (IOException ioe) { |
| throw new Error("Problem issuing the jstack command: " + str, ioe); |
| } |
| |
| OutputAnalyzer output = new OutputAnalyzer(p); |
| |
| try { |
| p.waitFor(); |
| } catch (InterruptedException ie) { |
| p.destroyForcibly(); |
| throw new Error("Problem awaiting the child process: " + ie, ie); |
| } |
| |
| output.shouldHaveExitValue(0); |
| } |
| |
| public static void main (String... args) throws Exception { |
| |
| LingeredApp app = null; |
| |
| try { |
| List<String> vmArgs = new ArrayList<String>(Utils.getVmOptions()); |
| |
| app = new LingeredAppWithLock(); |
| LingeredApp.startApp(vmArgs, app); |
| System.out.println ("Started LingeredApp with pid " + app.getPid()); |
| startClhsdbForLock(app.getPid()); |
| verifyJStackOutput(); |
| } finally { |
| LingeredApp.stopApp(app); |
| } |
| } |
| } |