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This commit is contained in:
Gary Gregory
parent
789f88eaa2
commit
3c96b101bd
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@ -40,9 +40,122 @@ import org.junit.jupiter.api.Test;
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*/
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public class ThreadUtilsTest {
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private static class TestThread extends Thread {
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private final CountDownLatch latch = new CountDownLatch(1);
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TestThread(final String name) {
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super(name);
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}
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TestThread(final ThreadGroup group, final String name) {
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super(group, name);
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}
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@Override
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public void run() {
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latch.countDown();
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try {
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synchronized(this) {
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this.wait();
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}
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} catch (final InterruptedException e) {
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Thread.currentThread().interrupt();
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}
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}
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@Override
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public synchronized void start() {
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super.start();
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try {
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latch.await();
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} catch (final InterruptedException e) {
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Thread.currentThread().interrupt();
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}
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}
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}
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@Test
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public void testNullThreadName() {
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assertThrows(NullPointerException.class, () -> ThreadUtils.findThreadsByName(null));
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public void testAtLeastOneThreadExists() {
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assertFalse(ThreadUtils.getAllThreads().isEmpty());
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}
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@Test
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public void testAtLeastOneThreadGroupsExists() {
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assertFalse(ThreadUtils.getAllThreadGroups().isEmpty());
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}
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@Test
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public void testComplexThreadGroups() throws Exception {
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final ThreadGroup threadGroup1 = new ThreadGroup("thread_group_1__");
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final ThreadGroup threadGroup2 = new ThreadGroup("thread_group_2__");
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final ThreadGroup threadGroup3 = new ThreadGroup(threadGroup2, "thread_group_3__");
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final ThreadGroup threadGroup4 = new ThreadGroup(threadGroup2, "thread_group_4__");
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final ThreadGroup threadGroup5 = new ThreadGroup(threadGroup1, "thread_group_5__");
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final ThreadGroup threadGroup6 = new ThreadGroup(threadGroup4, "thread_group_6__");
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final ThreadGroup threadGroup7 = new ThreadGroup(threadGroup4, "thread_group_7__");
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final ThreadGroup threadGroup7Doubled = new ThreadGroup(threadGroup4, "thread_group_7__");
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final List<ThreadGroup> threadGroups = Arrays.asList(threadGroup1, threadGroup2, threadGroup3, threadGroup4, threadGroup5, threadGroup6, threadGroup7, threadGroup7Doubled);
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final Thread t1 = new TestThread("thread1_X__");
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final Thread t2 = new TestThread(threadGroup1, "thread2_X__");
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final Thread t3 = new TestThread(threadGroup2, "thread3_X__");
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final Thread t4 = new TestThread(threadGroup3, "thread4_X__");
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final Thread t5 = new TestThread(threadGroup4, "thread5_X__");
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final Thread t6 = new TestThread(threadGroup5, "thread6_X__");
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final Thread t7 = new TestThread(threadGroup6, "thread7_X__");
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final Thread t8 = new TestThread(threadGroup4, "thread8_X__");
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final Thread t9 = new TestThread(threadGroup6, "thread9_X__");
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final Thread t10 = new TestThread(threadGroup3, "thread10_X__");
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final Thread t11 = new TestThread(threadGroup7, "thread11_X__");
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final Thread t11Doubled = new TestThread(threadGroup7Doubled, "thread11_X__");
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final List<Thread> threads = Arrays.asList(t1, t2, t3, t4, t5, t6, t7, t8, t9, t10, t11, t11Doubled);
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try {
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for (final Thread thread : threads) {
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thread.start();
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}
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assertTrue(ThreadUtils.getAllThreadGroups().size() >= 7);
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assertTrue(ThreadUtils.getAllThreads().size() >= 11);
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assertTrue(ThreadUtils.findThreads(ThreadUtils.ALWAYS_TRUE_PREDICATE).size() >= 11);
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assertEquals(1, ThreadUtils.findThreadsByName(t4.getName(), threadGroup3.getName()).size());
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assertEquals(0, ThreadUtils.findThreadsByName(t4.getName(), threadGroup2.getName()).size());
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assertEquals(2, ThreadUtils.findThreadsByName(t11.getName(), threadGroup7.getName()).size());
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} finally {
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for (final Thread thread : threads) {
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thread.interrupt();
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thread.join();
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}
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for (final ThreadGroup threadGroup : threadGroups) {
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if (!threadGroup.isDestroyed()) {
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threadGroup.destroy();
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}
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}
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}
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}
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@Test
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public void testConstructor() {
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assertNotNull(new ThreadUtils());
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final Constructor<?>[] cons = ThreadUtils.class.getDeclaredConstructors();
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assertEquals(1, cons.length);
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assertTrue(Modifier.isPublic(cons[0].getModifiers()));
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assertTrue(Modifier.isPublic(ThreadUtils.class.getModifiers()));
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assertFalse(Modifier.isFinal(ThreadUtils.class.getModifiers()));
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}
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@Test
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public void testInvalidThreadId() {
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assertThrows(IllegalArgumentException.class, () -> ThreadUtils.findThreadById(-5L));
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}
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@Test
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public void testNoThread() {
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assertEquals(0, ThreadUtils.findThreadsByName("some_thread_which_does_not_exist_18762ZucTT").size());
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}
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@Test
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public void testNoThreadGroup() {
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assertEquals(0, ThreadUtils.findThreadGroupsByName("some_thread_group_which_does_not_exist_18762ZucTTII").size());
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}
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@Test
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@ -51,18 +164,8 @@ public class ThreadUtilsTest {
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}
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@Test
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public void testNullThreadThreadGroupName1() {
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assertThrows(NullPointerException.class, () -> ThreadUtils.findThreadsByName(null, "tgname"));
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}
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@Test
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public void testNullThreadThreadGroupName2() {
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assertThrows(NullPointerException.class, () -> ThreadUtils.findThreadsByName("tname", (String) null));
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}
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@Test
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public void testNullThreadThreadGroupName3() {
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assertThrows(NullPointerException.class, () -> ThreadUtils.findThreadsByName(null, (String) null));
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public void testNullThreadName() {
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assertThrows(NullPointerException.class, () -> ThreadUtils.findThreadsByName(null));
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}
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@Test
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@ -81,8 +184,75 @@ public class ThreadUtilsTest {
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}
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@Test
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public void testInvalidThreadId() {
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assertThrows(IllegalArgumentException.class, () -> ThreadUtils.findThreadById(-5L));
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public void testNullThreadThreadGroupName1() {
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assertThrows(NullPointerException.class, () -> ThreadUtils.findThreadsByName(null, "tgname"));
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}
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@Test
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public void testNullThreadThreadGroupName2() {
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assertThrows(NullPointerException.class, () -> ThreadUtils.findThreadsByName("tname", (String) null));
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}
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@Test
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public void testNullThreadThreadGroupName3() {
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assertThrows(NullPointerException.class, () -> ThreadUtils.findThreadsByName(null, (String) null));
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}
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@Test
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public void testSystemThreadGroupExists() {
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final ThreadGroup systemThreadGroup = ThreadUtils.getSystemThreadGroup();
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assertNotNull(systemThreadGroup);
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assertNull(systemThreadGroup.getParent());
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assertEquals("system", systemThreadGroup.getName());
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}
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@Test
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public void testThreadGroups() throws InterruptedException {
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final ThreadGroup threadGroup = new ThreadGroup("thread_group_DDZZ99__");
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final Thread t1 = new TestThread(threadGroup, "thread1_XXOOPP__");
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final Thread t2 = new TestThread(threadGroup, "thread2_XXOOPP__");
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try {
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t1.start();
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t2.start();
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assertEquals(1, ThreadUtils.findThreadsByName("thread1_XXOOPP__").size());
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assertEquals(1, ThreadUtils.findThreadsByName("thread1_XXOOPP__", "thread_group_DDZZ99__").size());
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assertEquals(1, ThreadUtils.findThreadsByName("thread2_XXOOPP__", "thread_group_DDZZ99__").size());
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assertEquals(0, ThreadUtils.findThreadsByName("thread1_XXOOPP__", "non_existent_thread_group_JJHHZZ__").size());
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assertEquals(0, ThreadUtils.findThreadsByName("non_existent_thread_BBDDWW__", "thread_group_DDZZ99__").size());
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assertEquals(1, ThreadUtils.findThreadGroupsByName("thread_group_DDZZ99__").size());
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assertEquals(0, ThreadUtils.findThreadGroupsByName("non_existent_thread_group_JJHHZZ__").size());
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assertNotNull(ThreadUtils.findThreadById(t1.getId(), threadGroup));
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} finally {
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t1.interrupt();
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t2.interrupt();
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t1.join();
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t2.join();
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threadGroup.destroy();
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}
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}
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@Test
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public void testThreadGroupsById() throws InterruptedException {
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final ThreadGroup threadGroup = new ThreadGroup("thread_group_DDZZ99__");
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final Thread t1 = new TestThread(threadGroup, "thread1_XXOOPP__");
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final Thread t2 = new TestThread(threadGroup, "thread2_XXOOPP__");
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final long nonExistingId = t1.getId()+t2.getId();
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try {
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t1.start();
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t2.start();
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assertSame(t1, ThreadUtils.findThreadById(t1.getId(), "thread_group_DDZZ99__"));
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assertSame(t2, ThreadUtils.findThreadById(t2.getId(), "thread_group_DDZZ99__"));
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assertNull(ThreadUtils.findThreadById(nonExistingId, "non_existent_thread_group_JJHHZZ__"));
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assertNull(ThreadUtils.findThreadById(nonExistingId, "thread_group_DDZZ99__"));
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} finally {
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t1.interrupt();
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t2.interrupt();
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t1.join();
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t2.join();
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threadGroup.destroy();
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}
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}
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@Test
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@ -102,53 +272,29 @@ public class ThreadUtilsTest {
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assertThrows(NullPointerException.class, () -> ThreadUtils.findThreadGroups(null));
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}
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@Test
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public void testThreadsNullPredicate() {
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assertThrows(NullPointerException.class, () -> ThreadUtils.findThreads(null));
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}
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@Test
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public void testNoThread() {
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assertEquals(0, ThreadUtils.findThreadsByName("some_thread_which_does_not_exist_18762ZucTT").size());
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}
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@Test
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public void testNoThreadGroup() {
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assertEquals(0, ThreadUtils.findThreadGroupsByName("some_thread_group_which_does_not_exist_18762ZucTTII").size());
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}
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@Test
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public void testSystemThreadGroupExists() {
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final ThreadGroup systemThreadGroup = ThreadUtils.getSystemThreadGroup();
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assertNotNull(systemThreadGroup);
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assertNull(systemThreadGroup.getParent());
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assertEquals("system", systemThreadGroup.getName());
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}
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@Test
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public void testAtLeastOneThreadExists() {
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assertFalse(ThreadUtils.getAllThreads().isEmpty());
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}
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@Test
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public void testAtLeastOneThreadGroupsExists() {
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assertFalse(ThreadUtils.getAllThreadGroups().isEmpty());
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}
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@Test
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public void testThreadsSameName() throws InterruptedException {
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final Thread t1 = new TestThread("thread1_XXOOLL__");
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final Thread alsot1 = new TestThread("thread1_XXOOLL__");
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public void testThreadGroupsRef() throws InterruptedException {
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final ThreadGroup threadGroup = new ThreadGroup("thread_group_DDZZ99__");
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final ThreadGroup deadThreadGroup = new ThreadGroup("dead_thread_group_MMQQSS__");
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deadThreadGroup.destroy();
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final Thread t1 = new TestThread(threadGroup, "thread1_XXOOPP__");
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final Thread t2 = new TestThread(threadGroup, "thread2_XXOOPP__");
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try {
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t1.start();
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alsot1.start();
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assertEquals(2, ThreadUtils.findThreadsByName("thread1_XXOOLL__").size());
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t2.start();
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assertEquals(1, ThreadUtils.findThreadsByName("thread1_XXOOPP__").size());
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assertEquals(1, ThreadUtils.findThreadsByName("thread1_XXOOPP__", threadGroup).size());
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assertEquals(1, ThreadUtils.findThreadsByName("thread2_XXOOPP__", threadGroup).size());
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assertEquals(0, ThreadUtils.findThreadsByName("thread1_XXOOPP__", deadThreadGroup).size());
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} finally {
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t1.interrupt();
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alsot1.interrupt();
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t2.interrupt();
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t1.join();
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alsot1.join();
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t2.join();
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threadGroup.destroy();
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assertEquals(0, ThreadUtils.findThreadsByName("thread2_XXOOPP__", threadGroup).size());
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}
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}
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@ -202,172 +348,26 @@ public class ThreadUtilsTest {
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}
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}
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@Test
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public void testThreadsNullPredicate() {
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assertThrows(NullPointerException.class, () -> ThreadUtils.findThreads(null));
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}
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@Test
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public void testThreadGroups() throws InterruptedException {
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final ThreadGroup threadGroup = new ThreadGroup("thread_group_DDZZ99__");
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final Thread t1 = new TestThread(threadGroup, "thread1_XXOOPP__");
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final Thread t2 = new TestThread(threadGroup, "thread2_XXOOPP__");
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public void testThreadsSameName() throws InterruptedException {
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final Thread t1 = new TestThread("thread1_XXOOLL__");
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final Thread alsot1 = new TestThread("thread1_XXOOLL__");
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try {
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t1.start();
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t2.start();
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assertEquals(1, ThreadUtils.findThreadsByName("thread1_XXOOPP__").size());
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assertEquals(1, ThreadUtils.findThreadsByName("thread1_XXOOPP__", "thread_group_DDZZ99__").size());
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assertEquals(1, ThreadUtils.findThreadsByName("thread2_XXOOPP__", "thread_group_DDZZ99__").size());
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assertEquals(0, ThreadUtils.findThreadsByName("thread1_XXOOPP__", "non_existent_thread_group_JJHHZZ__").size());
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assertEquals(0, ThreadUtils.findThreadsByName("non_existent_thread_BBDDWW__", "thread_group_DDZZ99__").size());
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assertEquals(1, ThreadUtils.findThreadGroupsByName("thread_group_DDZZ99__").size());
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assertEquals(0, ThreadUtils.findThreadGroupsByName("non_existent_thread_group_JJHHZZ__").size());
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assertNotNull(ThreadUtils.findThreadById(t1.getId(), threadGroup));
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alsot1.start();
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assertEquals(2, ThreadUtils.findThreadsByName("thread1_XXOOLL__").size());
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} finally {
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t1.interrupt();
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t2.interrupt();
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alsot1.interrupt();
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t1.join();
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t2.join();
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threadGroup.destroy();
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}
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}
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@Test
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public void testThreadGroupsRef() throws InterruptedException {
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final ThreadGroup threadGroup = new ThreadGroup("thread_group_DDZZ99__");
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final ThreadGroup deadThreadGroup = new ThreadGroup("dead_thread_group_MMQQSS__");
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deadThreadGroup.destroy();
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final Thread t1 = new TestThread(threadGroup, "thread1_XXOOPP__");
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final Thread t2 = new TestThread(threadGroup, "thread2_XXOOPP__");
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try {
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t1.start();
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t2.start();
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assertEquals(1, ThreadUtils.findThreadsByName("thread1_XXOOPP__").size());
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assertEquals(1, ThreadUtils.findThreadsByName("thread1_XXOOPP__", threadGroup).size());
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assertEquals(1, ThreadUtils.findThreadsByName("thread2_XXOOPP__", threadGroup).size());
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assertEquals(0, ThreadUtils.findThreadsByName("thread1_XXOOPP__", deadThreadGroup).size());
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} finally {
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t1.interrupt();
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t2.interrupt();
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t1.join();
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t2.join();
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threadGroup.destroy();
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assertEquals(0, ThreadUtils.findThreadsByName("thread2_XXOOPP__", threadGroup).size());
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}
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}
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@Test
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public void testThreadGroupsById() throws InterruptedException {
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final ThreadGroup threadGroup = new ThreadGroup("thread_group_DDZZ99__");
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final Thread t1 = new TestThread(threadGroup, "thread1_XXOOPP__");
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final Thread t2 = new TestThread(threadGroup, "thread2_XXOOPP__");
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final long nonExistingId = t1.getId()+t2.getId();
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try {
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t1.start();
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t2.start();
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assertSame(t1, ThreadUtils.findThreadById(t1.getId(), "thread_group_DDZZ99__"));
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assertSame(t2, ThreadUtils.findThreadById(t2.getId(), "thread_group_DDZZ99__"));
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assertNull(ThreadUtils.findThreadById(nonExistingId, "non_existent_thread_group_JJHHZZ__"));
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assertNull(ThreadUtils.findThreadById(nonExistingId, "thread_group_DDZZ99__"));
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} finally {
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t1.interrupt();
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t2.interrupt();
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t1.join();
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t2.join();
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threadGroup.destroy();
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}
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}
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@Test
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public void testConstructor() {
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assertNotNull(new ThreadUtils());
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final Constructor<?>[] cons = ThreadUtils.class.getDeclaredConstructors();
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assertEquals(1, cons.length);
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assertTrue(Modifier.isPublic(cons[0].getModifiers()));
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assertTrue(Modifier.isPublic(ThreadUtils.class.getModifiers()));
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assertFalse(Modifier.isFinal(ThreadUtils.class.getModifiers()));
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}
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@Test
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public void testComplexThreadGroups() throws Exception {
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final ThreadGroup threadGroup1 = new ThreadGroup("thread_group_1__");
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final ThreadGroup threadGroup2 = new ThreadGroup("thread_group_2__");
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final ThreadGroup threadGroup3 = new ThreadGroup(threadGroup2, "thread_group_3__");
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final ThreadGroup threadGroup4 = new ThreadGroup(threadGroup2, "thread_group_4__");
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final ThreadGroup threadGroup5 = new ThreadGroup(threadGroup1, "thread_group_5__");
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final ThreadGroup threadGroup6 = new ThreadGroup(threadGroup4, "thread_group_6__");
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final ThreadGroup threadGroup7 = new ThreadGroup(threadGroup4, "thread_group_7__");
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final ThreadGroup threadGroup7Doubled = new ThreadGroup(threadGroup4, "thread_group_7__");
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final List<ThreadGroup> threadGroups = Arrays.asList(threadGroup1, threadGroup2, threadGroup3, threadGroup4, threadGroup5, threadGroup6, threadGroup7, threadGroup7Doubled);
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final Thread t1 = new TestThread("thread1_X__");
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final Thread t2 = new TestThread(threadGroup1, "thread2_X__");
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final Thread t3 = new TestThread(threadGroup2, "thread3_X__");
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final Thread t4 = new TestThread(threadGroup3, "thread4_X__");
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final Thread t5 = new TestThread(threadGroup4, "thread5_X__");
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final Thread t6 = new TestThread(threadGroup5, "thread6_X__");
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final Thread t7 = new TestThread(threadGroup6, "thread7_X__");
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final Thread t8 = new TestThread(threadGroup4, "thread8_X__");
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final Thread t9 = new TestThread(threadGroup6, "thread9_X__");
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final Thread t10 = new TestThread(threadGroup3, "thread10_X__");
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final Thread t11 = new TestThread(threadGroup7, "thread11_X__");
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final Thread t11Doubled = new TestThread(threadGroup7Doubled, "thread11_X__");
|
||||
final List<Thread> threads = Arrays.asList(t1, t2, t3, t4, t5, t6, t7, t8, t9, t10, t11, t11Doubled);
|
||||
|
||||
try {
|
||||
for (final Thread thread : threads) {
|
||||
thread.start();
|
||||
}
|
||||
assertTrue(ThreadUtils.getAllThreadGroups().size() >= 7);
|
||||
assertTrue(ThreadUtils.getAllThreads().size() >= 11);
|
||||
assertTrue(ThreadUtils.findThreads(ThreadUtils.ALWAYS_TRUE_PREDICATE).size() >= 11);
|
||||
assertEquals(1, ThreadUtils.findThreadsByName(t4.getName(), threadGroup3.getName()).size());
|
||||
assertEquals(0, ThreadUtils.findThreadsByName(t4.getName(), threadGroup2.getName()).size());
|
||||
assertEquals(2, ThreadUtils.findThreadsByName(t11.getName(), threadGroup7.getName()).size());
|
||||
} finally {
|
||||
for (final Thread thread : threads) {
|
||||
thread.interrupt();
|
||||
thread.join();
|
||||
}
|
||||
for (final ThreadGroup threadGroup : threadGroups) {
|
||||
if (!threadGroup.isDestroyed()) {
|
||||
threadGroup.destroy();
|
||||
}
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
|
||||
private static class TestThread extends Thread {
|
||||
private final CountDownLatch latch = new CountDownLatch(1);
|
||||
|
||||
TestThread(final String name) {
|
||||
super(name);
|
||||
}
|
||||
|
||||
TestThread(final ThreadGroup group, final String name) {
|
||||
super(group, name);
|
||||
}
|
||||
|
||||
@Override
|
||||
public synchronized void start() {
|
||||
super.start();
|
||||
try {
|
||||
latch.await();
|
||||
} catch (final InterruptedException e) {
|
||||
Thread.currentThread().interrupt();
|
||||
}
|
||||
}
|
||||
|
||||
@Override
|
||||
public void run() {
|
||||
latch.countDown();
|
||||
try {
|
||||
synchronized(this) {
|
||||
this.wait();
|
||||
}
|
||||
} catch (final InterruptedException e) {
|
||||
Thread.currentThread().interrupt();
|
||||
}
|
||||
alsot1.join();
|
||||
}
|
||||
}
|
||||
}
|
||||
|
|
|
|||
Loading…
Reference in New Issue