1 /*
   2  * Copyright (c) 2004, 2011, 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.
   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  */
  23 
  24 /*
  25  * @test
  26  * @bug     5014783 8022208
  27  * @summary Basic unit test of thread states returned by
  28  *          Thread.getState().
  29  *
  30  * @author  Mandy Chung
  31  * @library /lib/testlibrary
  32  * @build ThreadStateTest ThreadStateController
  33  * @run main ThreadStateTest
  34  */
  35 
  36 public class ThreadStateTest {
  37     private static boolean testFailed = false;
  38 
  39     // used to achieve waiting states
  40     private static final Object globalLock = new Object();
  41 
  42     public static void main(String[] argv) {
  43         // Call Thread.getState to force all initialization done
  44         // before test verification begins.
  45         Thread.currentThread().getState();
  46         ThreadStateController myThread = new ThreadStateController("MyThread", globalLock);
  47         myThread.setDaemon(true);
  48 
  49         // before myThread starts
  50         ThreadStateController.checkThreadState(myThread, Thread.State.NEW);
  51 
  52         myThread.start();
  53         myThread.waitUntilStarted();
  54         ThreadStateController.checkThreadState(myThread, Thread.State.RUNNABLE);
  55 
  56         synchronized (globalLock) {
  57             myThread.goBlocked();
  58             ThreadStateController.checkThreadState(myThread, Thread.State.BLOCKED);
  59         }
  60 
  61         myThread.goWaiting();
  62         ThreadStateController.checkThreadState(myThread, Thread.State.WAITING);
  63 
  64         myThread.goTimedWaiting();
  65         ThreadStateController.checkThreadState(myThread, Thread.State.TIMED_WAITING);
  66 
  67 
  68       /*
  69        *********** park and parkUntil seems not working
  70        * ignore this case for now.
  71        * Bug ID 5062095
  72        ***********************************************
  73 
  74         myThread.goParked();
  75         ThreadStateController.checkThreadState(myThread, Thread.State.WAITING);
  76 
  77         myThread.goTimedParked();
  78         ThreadStateController.checkThreadState(myThread, Thread.State.TIMED_WAITING);
  79        */
  80 
  81 
  82         myThread.goSleeping();
  83         ThreadStateController.checkThreadState(myThread, Thread.State.TIMED_WAITING);
  84 
  85         myThread.terminate();
  86         ThreadStateController.checkThreadState(myThread, Thread.State.TERMINATED);
  87 
  88         try {
  89             myThread.join();
  90         } catch (InterruptedException e) {
  91             e.printStackTrace();
  92             System.out.println("Unexpected exception.");
  93             testFailed = true;
  94         }
  95 
  96         if (testFailed)
  97             throw new RuntimeException("TEST FAILED.");
  98         System.out.println("Test passed.");
  99     }
 100 }