Quelle LoggingDeadlock3.java Sprache: JAVA

/*
* Copyright (c) 2011, 2012, 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.
*/

/*
* @test
* @bug     6487638 7041595
* @summary Calling LogManager.addLogger() and Logger.getLogger() cause deadlock
* @author  Serguei Spitsyn
* @build LoggingDeadlock3
* @run main/timeout=80 LoggingDeadlock3
*/

import java.io.*;
import java.util.logging.LogManager;
import java.util.logging.Logger;

public class LoggingDeadlock3 {
  static final int         ITER_CNT   = 50000;
  static final String      MSG_PASSED = "LoggingDeadlock3: passed";
  static final LogManager  logMgr     = LogManager.getLogManager();
  static final PrintStream out        = System.out;

  public static void main(String args[]) throws Exception {
    String tstSrc = System.getProperty("test.src");
    File   fname  = new File(tstSrc, "LoggingDeadlock3.props");
    String prop   = fname.getCanonicalPath();
    System.setProperty("java.util.logging.config.file", prop);
    logMgr.readConfiguration();

    Thread t1 = new Thread(new AddLogger());
    Thread t2 = new Thread(new GetLogger());
    t1.start(); t2.start();
    t1.join();  t2.join();
    out.println("\n" + MSG_PASSED);
  }

  public static class MyLogger extends Logger {
    protected MyLogger(String name) { super(name, null); }
  }

  public static class GetLogger implements Runnable {
    public void run() {
      for (int cnt = 0; cnt < ITER_CNT * 8; cnt++) {
        Logger.getLogger("com.sun.Hello"+cnt/10);
        if (cnt % 1000  == 0) out.print("1");
        if (cnt % 10000 == 0) out.println();
      }
    }
  }

  public static class AddLogger implements Runnable {
    public void run() {
      for (int cnt = 0; cnt < ITER_CNT; cnt++) {
        Logger addLogger = new MyLogger("com.sun.Hello"+cnt);
        logMgr.addLogger(addLogger);
        if (cnt % 100  == 0) out.print("2");
        if (cnt % 1000 == 0) out.println();
      }
    }
  }
}

quality87%

¤ Dauer der Verarbeitung: 0.1 Sekunden (vorverarbeitet) ¤

Wurzel

Suchen

Beweissystem der NASA

Beweissystem Isabelle

NIST Cobol Testsuite

Cephes Mathematical Library

Wiener Entwicklungsmethode

Haftungshinweis

Die Informationen auf dieser Webseite wurden nach bestem Wissen sorgfältig zusammengestellt. Es wird jedoch weder Vollständigkeit, noch Richtigkeit, noch Qualität der bereit gestellten Informationen zugesichert.

Bemerkung:

Die farbliche Syntaxdarstellung ist noch experimentell.