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annotate src/tests/gov/nasa/jpf/test/mc/threads/ClinitTest.java @ 0:61d41facf527

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initial v8 import (history reset)
author Peter Mehlitz <Peter.C.Mehlitz@nasa.gov>
date Fri, 23 Jan 2015 10:14:01 -0800
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1 /*
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2 * Copyright (C) 2014, United States Government, as represented by the
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3 * Administrator of the National Aeronautics and Space Administration.
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4 * All rights reserved.
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5 *
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6 * The Java Pathfinder core (jpf-core) platform is licensed under the
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7 * Apache License, Version 2.0 (the "License"); you may not use this file except
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8 * in compliance with the License. You may obtain a copy of the License at
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9 *
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10 * http://www.apache.org/licenses/LICENSE-2.0.
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11 *
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12 * Unless required by applicable law or agreed to in writing, software
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13 * distributed under the License is distributed on an "AS IS" BASIS,
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14 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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15 * See the License for the specific language governing permissions and
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16 * limitations under the License.
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17 */
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18 package gov.nasa.jpf.test.mc.threads;
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19
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20 import org.junit.Test;
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21
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22 import gov.nasa.jpf.util.test.TestJPF;
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23 import gov.nasa.jpf.vm.Verify;
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24
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25 /**
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26 * regression test for concurrent clinit execution
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27 */
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28 public class ClinitTest extends TestJPF {
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29
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30 static class X {
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31 static int x;
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32 static {
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33 Verify.threadPrintln("initializing X");
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34 assertTrue( x == 0);
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35 x++;
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36 }
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37 }
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38
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39 @Test
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40 public void testNoConcurrentClinit () {
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41 if (verifyNoPropertyViolation()) {
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42
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43 Runnable r = new Runnable() {
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44 @Override
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45 public void run() {
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46 int x = X.x;
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47 }
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48 };
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49 Thread t = new Thread(r);
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50 t.start();
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51
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52 int x = X.x;
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53 assertTrue( "x = " + x, x == 1);
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54 }
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55 }
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56
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57
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58 static class Y {
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59 static long y;
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60
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61 static {
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62 Thread t = Thread.currentThread();
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63 Verify.threadPrintln("initializing Y");
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64 y = t.getId();
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65 }
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66 }
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67
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68 @Test
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69 public void testClinitChoices() {
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70 if (verifyAssertionErrorDetails("gotcha")) {
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71 Runnable r = new Runnable() {
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72 @Override
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73 public void run() {
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74 long y = Y.y;
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75 }
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76 };
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77 Thread t = new Thread(r);
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78 t.start();
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79
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80 long y = Y.y;
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81 Thread tCur = Thread.currentThread();
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82 Verify.threadPrintln("testing Y.y");
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83 assertTrue( "gotcha", y == tCur.getId());
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84 }
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85 }
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86 }