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/* |
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* Written by members of JCP JSR-166 Expert Group and released to the |
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* public domain. Use, modify, and redistribute this code in any way |
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* without acknowledgement. Other contributors include Andrew Wright, |
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* Jeffrey Hayes, Pat Fischer, Mike Judd. |
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* Written by Doug Lea with assistance from members of JCP JSR-166 |
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* Expert Group and released to the public domain, as explained at |
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* http://creativecommons.org/publicdomain/zero/1.0/ |
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* Other contributors include Andrew Wright, Jeffrey Hayes, |
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* Pat Fisher, Mike Judd. |
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*/ |
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|
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import junit.framework.*; |
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import java.util.*; |
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import java.util.concurrent.*; |
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|
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public class ScheduledExecutorTest extends TestCase{ |
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|
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boolean flag = false; |
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import static java.util.concurrent.TimeUnit.MILLISECONDS; |
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import static java.util.concurrent.TimeUnit.NANOSECONDS; |
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import static java.util.concurrent.TimeUnit.SECONDS; |
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|
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import java.util.ArrayList; |
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import java.util.Collection; |
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import java.util.Collections; |
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import java.util.HashSet; |
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import java.util.List; |
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import java.util.concurrent.BlockingQueue; |
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import java.util.concurrent.Callable; |
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import java.util.concurrent.CancellationException; |
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import java.util.concurrent.CountDownLatch; |
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import java.util.concurrent.ExecutionException; |
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import java.util.concurrent.ExecutorService; |
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import java.util.concurrent.Future; |
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import java.util.concurrent.RejectedExecutionException; |
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import java.util.concurrent.ScheduledFuture; |
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import java.util.concurrent.ScheduledThreadPoolExecutor; |
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import java.util.concurrent.ThreadFactory; |
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import java.util.concurrent.ThreadLocalRandom; |
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import java.util.concurrent.ThreadPoolExecutor; |
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import java.util.concurrent.atomic.AtomicBoolean; |
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import java.util.concurrent.atomic.AtomicInteger; |
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import java.util.concurrent.atomic.AtomicLong; |
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import java.util.stream.Stream; |
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|
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import junit.framework.Test; |
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import junit.framework.TestSuite; |
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|
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public class ScheduledExecutorTest extends JSR166TestCase { |
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public static void main(String[] args) { |
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junit.textui.TestRunner.run (suite()); |
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main(suite(), args); |
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} |
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|
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|
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public static Test suite() { |
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return new TestSuite(ScheduledExecutorTest.class); |
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return new TestSuite(ScheduledExecutorTest.class); |
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} |
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|
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private static long SHORT_DELAY_MS = 100; |
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private static long MEDIUM_DELAY_MS = 1000; |
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private static long LONG_DELAY_MS = 10000; |
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|
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static class MyRunnable implements Runnable { |
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volatile boolean waiting = true; |
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volatile boolean done = false; |
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public void run(){ |
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try{ |
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Thread.sleep(MEDIUM_DELAY_MS); |
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waiting = false; |
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done = true; |
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} catch(Exception e){} |
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} |
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} |
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|
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static class MyCallable implements Callable { |
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volatile boolean waiting = true; |
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volatile boolean done = false; |
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public Object call(){ |
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try{ |
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Thread.sleep(MEDIUM_DELAY_MS); |
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waiting = false; |
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done = true; |
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}catch(Exception e){} |
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return Boolean.TRUE; |
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} |
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} |
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|
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/** |
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* Test to verify execute successfully runs the given Runnable |
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*/ |
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public void testExecute(){ |
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try{ |
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MyRunnable runnable =new MyRunnable(); |
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ScheduledExecutor one = new ScheduledExecutor(1); |
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one.execute(runnable); |
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Thread.sleep(100); |
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assertTrue(runnable.waiting); |
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one.shutdown(); |
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// make sure the Runnable has time to complete |
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try{Thread.sleep(1010);}catch(InterruptedException e){} |
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assertFalse(runnable.waiting); |
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assertTrue(runnable.done); |
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one.shutdown(); |
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} |
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catch(Exception e){ |
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fail("unexpected exception"); |
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} |
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} |
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|
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/** |
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* Test to verify schedule successfully runs the given Callable. |
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* The waiting flag shows that the Callable is not started until |
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* immediately. |
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*/ |
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public void testSchedule1(){ |
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try{ |
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MyCallable callable = new MyCallable(); |
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ScheduledExecutor one = new ScheduledExecutor(1); |
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Future f = one.schedule(callable, 500, TimeUnit.MILLISECONDS); |
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// Thread.sleep(505); |
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assertTrue(callable.waiting); |
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Thread.sleep(2000); |
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assertTrue(callable.done); |
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assertEquals(Boolean.TRUE, f.get()); |
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one.shutdown(); |
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}catch(RejectedExecutionException e){} |
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catch(Exception e){} |
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} |
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|
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/** |
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* Another version of schedule, only using Runnable instead of Callable |
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*/ |
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public void testSchedule3(){ |
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try{ |
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MyRunnable runnable = new MyRunnable(); |
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ScheduledExecutor one = new ScheduledExecutor(1); |
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one.schedule(runnable, 500, TimeUnit.MILLISECONDS); |
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Thread.sleep(50); |
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assertTrue(runnable.waiting); |
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Thread.sleep(2000); |
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assertTrue(runnable.done); |
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one.shutdown(); |
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} catch(Exception e){ |
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fail("unexpected exception"); |
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} |
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} |
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|
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/** |
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* The final version of schedule, using both long, TimeUnit and Runnable |
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*/ |
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public void testSchedule4(){ |
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try{ |
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MyRunnable runnable = new MyRunnable(); |
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ScheduledExecutor one = new ScheduledExecutor(1); |
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one.schedule(runnable, 500, TimeUnit.MILLISECONDS); |
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// Thread.sleep(505); |
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assertTrue(runnable.waiting); |
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Thread.sleep(2000); |
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assertTrue(runnable.done); |
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one.shutdown(); |
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} catch(Exception e){ |
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fail("unexpected exception"); |
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} |
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} |
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|
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|
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// exception tests |
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|
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/** |
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* Test to verify schedule(Runnable, long) throws RejectedExecutionException |
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* This occurs on an attempt to schedule a task on a shutdown executor |
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*/ |
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public void testSchedule1_RejectedExecutionException(){ |
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try{ |
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ScheduledExecutor se = new ScheduledExecutor(1); |
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se.shutdown(); |
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se.schedule(new Runnable(){ |
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public void run(){} |
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}, 10000, TimeUnit.MILLISECONDS); |
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fail("shoud throw"); |
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}catch(RejectedExecutionException e){} |
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} |
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|
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/** |
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* Test to verify schedule(Callable, long, TimeUnit) throws RejectedExecutionException |
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* This occurs on an attempt to schedule a task on a shutdown executor |
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*/ |
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public void testSchedule2_RejectedExecutionException(){ |
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try{ |
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ScheduledExecutor se = new ScheduledExecutor(1); |
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se.shutdown(); |
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se.schedule(new Callable(){ |
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public Object call(){ |
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return Boolean.TRUE; |
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} |
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}, (long)100, TimeUnit.SECONDS); |
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fail("should throw"); |
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}catch(RejectedExecutionException e){} |
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/** |
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* execute successfully executes a runnable |
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*/ |
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public void testExecute() throws InterruptedException { |
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final ScheduledThreadPoolExecutor p = new ScheduledThreadPoolExecutor(1); |
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try (PoolCleaner cleaner = cleaner(p)) { |
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final CountDownLatch done = new CountDownLatch(1); |
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final Runnable task = new CheckedRunnable() { |
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public void realRun() { done.countDown(); }}; |
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p.execute(task); |
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await(done); |
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} |
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} |
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|
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/** |
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* delayed schedule of callable successfully executes after delay |
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*/ |
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public void testSchedule1() throws Exception { |
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final ScheduledThreadPoolExecutor p = new ScheduledThreadPoolExecutor(1); |
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try (PoolCleaner cleaner = cleaner(p)) { |
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final long startTime = System.nanoTime(); |
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final CountDownLatch done = new CountDownLatch(1); |
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Callable<Boolean> task = new CheckedCallable<Boolean>() { |
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public Boolean realCall() { |
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done.countDown(); |
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assertTrue(millisElapsedSince(startTime) >= timeoutMillis()); |
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return Boolean.TRUE; |
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}}; |
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Future<Boolean> f = p.schedule(task, timeoutMillis(), MILLISECONDS); |
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assertSame(Boolean.TRUE, f.get()); |
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assertTrue(millisElapsedSince(startTime) >= timeoutMillis()); |
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assertEquals(0L, done.getCount()); |
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} |
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} |
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|
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/** |
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* delayed schedule of runnable successfully executes after delay |
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*/ |
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public void testSchedule3() throws Exception { |
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final ScheduledThreadPoolExecutor p = new ScheduledThreadPoolExecutor(1); |
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try (PoolCleaner cleaner = cleaner(p)) { |
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final long startTime = System.nanoTime(); |
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final CountDownLatch done = new CountDownLatch(1); |
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Runnable task = new CheckedRunnable() { |
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public void realRun() { |
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done.countDown(); |
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assertTrue(millisElapsedSince(startTime) >= timeoutMillis()); |
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}}; |
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Future<?> f = p.schedule(task, timeoutMillis(), MILLISECONDS); |
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await(done); |
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assertNull(f.get(LONG_DELAY_MS, MILLISECONDS)); |
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assertTrue(millisElapsedSince(startTime) >= timeoutMillis()); |
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} |
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} |
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|
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/** |
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* scheduleAtFixedRate executes runnable after given initial delay |
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*/ |
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public void testSchedule4() throws Exception { |
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final ScheduledThreadPoolExecutor p = new ScheduledThreadPoolExecutor(1); |
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try (PoolCleaner cleaner = cleaner(p)) { |
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final long startTime = System.nanoTime(); |
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final CountDownLatch done = new CountDownLatch(1); |
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Runnable task = new CheckedRunnable() { |
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public void realRun() { |
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done.countDown(); |
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assertTrue(millisElapsedSince(startTime) >= timeoutMillis()); |
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}}; |
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ScheduledFuture<?> f = |
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p.scheduleAtFixedRate(task, timeoutMillis(), |
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LONG_DELAY_MS, MILLISECONDS); |
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await(done); |
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assertTrue(millisElapsedSince(startTime) >= timeoutMillis()); |
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f.cancel(true); |
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} |
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} |
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|
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/** |
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* scheduleWithFixedDelay executes runnable after given initial delay |
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*/ |
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public void testSchedule5() throws Exception { |
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final ScheduledThreadPoolExecutor p = new ScheduledThreadPoolExecutor(1); |
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try (PoolCleaner cleaner = cleaner(p)) { |
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final long startTime = System.nanoTime(); |
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final CountDownLatch done = new CountDownLatch(1); |
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Runnable task = new CheckedRunnable() { |
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public void realRun() { |
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done.countDown(); |
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assertTrue(millisElapsedSince(startTime) >= timeoutMillis()); |
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}}; |
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ScheduledFuture<?> f = |
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p.scheduleWithFixedDelay(task, timeoutMillis(), |
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LONG_DELAY_MS, MILLISECONDS); |
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await(done); |
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assertTrue(millisElapsedSince(startTime) >= timeoutMillis()); |
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f.cancel(true); |
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} |
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} |
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|
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static class RunnableCounter implements Runnable { |
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AtomicInteger count = new AtomicInteger(0); |
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public void run() { count.getAndIncrement(); } |
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} |
150 |
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|
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/** |
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* scheduleAtFixedRate executes series of tasks at given rate. |
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* Eventually, it must hold that: |
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* cycles - 1 <= elapsedMillis/delay < cycles |
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*/ |
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public void testFixedRateSequence() throws InterruptedException { |
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final ScheduledThreadPoolExecutor p = new ScheduledThreadPoolExecutor(1); |
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try (PoolCleaner cleaner = cleaner(p)) { |
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for (int delay = 1; delay <= LONG_DELAY_MS; delay *= 3) { |
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final long startTime = System.nanoTime(); |
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final int cycles = 8; |
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final CountDownLatch done = new CountDownLatch(cycles); |
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final Runnable task = new CheckedRunnable() { |
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public void realRun() { done.countDown(); }}; |
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final ScheduledFuture<?> periodicTask = |
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p.scheduleAtFixedRate(task, 0, delay, MILLISECONDS); |
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final int totalDelayMillis = (cycles - 1) * delay; |
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await(done, totalDelayMillis + LONG_DELAY_MS); |
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periodicTask.cancel(true); |
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final long elapsedMillis = millisElapsedSince(startTime); |
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assertTrue(elapsedMillis >= totalDelayMillis); |
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if (elapsedMillis <= cycles * delay) |
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return; |
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// else retry with longer delay |
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} |
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fail("unexpected execution rate"); |
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} |
178 |
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} |
179 |
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|
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/** |
181 |
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* scheduleWithFixedDelay executes series of tasks with given period. |
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* Eventually, it must hold that each task starts at least delay and at |
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* most 2 * delay after the termination of the previous task. |
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*/ |
185 |
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public void testFixedDelaySequence() throws InterruptedException { |
186 |
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final ScheduledThreadPoolExecutor p = new ScheduledThreadPoolExecutor(1); |
187 |
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try (PoolCleaner cleaner = cleaner(p)) { |
188 |
> |
for (int delay = 1; delay <= LONG_DELAY_MS; delay *= 3) { |
189 |
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final long startTime = System.nanoTime(); |
190 |
> |
final AtomicLong previous = new AtomicLong(startTime); |
191 |
> |
final AtomicBoolean tryLongerDelay = new AtomicBoolean(false); |
192 |
> |
final int cycles = 8; |
193 |
> |
final CountDownLatch done = new CountDownLatch(cycles); |
194 |
> |
final int d = delay; |
195 |
> |
final Runnable task = new CheckedRunnable() { |
196 |
> |
public void realRun() { |
197 |
> |
long now = System.nanoTime(); |
198 |
> |
long elapsedMillis |
199 |
> |
= NANOSECONDS.toMillis(now - previous.get()); |
200 |
> |
if (done.getCount() == cycles) { // first execution |
201 |
> |
if (elapsedMillis >= d) |
202 |
> |
tryLongerDelay.set(true); |
203 |
> |
} else { |
204 |
> |
assertTrue(elapsedMillis >= d); |
205 |
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if (elapsedMillis >= 2 * d) |
206 |
> |
tryLongerDelay.set(true); |
207 |
> |
} |
208 |
> |
previous.set(now); |
209 |
> |
done.countDown(); |
210 |
> |
}}; |
211 |
> |
final ScheduledFuture<?> periodicTask = |
212 |
> |
p.scheduleWithFixedDelay(task, 0, delay, MILLISECONDS); |
213 |
> |
final int totalDelayMillis = (cycles - 1) * delay; |
214 |
> |
await(done, totalDelayMillis + cycles * LONG_DELAY_MS); |
215 |
> |
periodicTask.cancel(true); |
216 |
> |
final long elapsedMillis = millisElapsedSince(startTime); |
217 |
> |
assertTrue(elapsedMillis >= totalDelayMillis); |
218 |
> |
if (!tryLongerDelay.get()) |
219 |
> |
return; |
220 |
> |
// else retry with longer delay |
221 |
> |
} |
222 |
> |
fail("unexpected execution rate"); |
223 |
> |
} |
224 |
> |
} |
225 |
> |
|
226 |
> |
/** |
227 |
> |
* Submitting null tasks throws NullPointerException |
228 |
> |
*/ |
229 |
> |
public void testNullTaskSubmission() { |
230 |
> |
final ScheduledThreadPoolExecutor p = new ScheduledThreadPoolExecutor(1); |
231 |
> |
try (PoolCleaner cleaner = cleaner(p)) { |
232 |
> |
assertNullTaskSubmissionThrowsNullPointerException(p); |
233 |
> |
} |
234 |
> |
} |
235 |
> |
|
236 |
> |
/** |
237 |
> |
* Submitted tasks are rejected when shutdown |
238 |
> |
*/ |
239 |
> |
public void testSubmittedTasksRejectedWhenShutdown() throws InterruptedException { |
240 |
> |
final ScheduledThreadPoolExecutor p = new ScheduledThreadPoolExecutor(1); |
241 |
> |
final ThreadLocalRandom rnd = ThreadLocalRandom.current(); |
242 |
> |
final CountDownLatch threadsStarted = new CountDownLatch(p.getCorePoolSize()); |
243 |
> |
final CountDownLatch done = new CountDownLatch(1); |
244 |
> |
final Runnable r = () -> { |
245 |
> |
threadsStarted.countDown(); |
246 |
> |
for (;;) { |
247 |
> |
try { |
248 |
> |
done.await(); |
249 |
> |
return; |
250 |
> |
} catch (InterruptedException shutdownNowDeliberatelyIgnored) {} |
251 |
> |
}}; |
252 |
> |
final Callable<Boolean> c = () -> { |
253 |
> |
threadsStarted.countDown(); |
254 |
> |
for (;;) { |
255 |
> |
try { |
256 |
> |
done.await(); |
257 |
> |
return Boolean.TRUE; |
258 |
> |
} catch (InterruptedException shutdownNowDeliberatelyIgnored) {} |
259 |
> |
}}; |
260 |
> |
|
261 |
> |
try (PoolCleaner cleaner = cleaner(p, done)) { |
262 |
> |
for (int i = p.getCorePoolSize(); i--> 0; ) { |
263 |
> |
switch (rnd.nextInt(4)) { |
264 |
> |
case 0: p.execute(r); break; |
265 |
> |
case 1: assertFalse(p.submit(r).isDone()); break; |
266 |
> |
case 2: assertFalse(p.submit(r, Boolean.TRUE).isDone()); break; |
267 |
> |
case 3: assertFalse(p.submit(c).isDone()); break; |
268 |
> |
} |
269 |
> |
} |
270 |
> |
|
271 |
> |
// ScheduledThreadPoolExecutor has an unbounded queue, so never saturated. |
272 |
> |
await(threadsStarted); |
273 |
> |
|
274 |
> |
if (rnd.nextBoolean()) |
275 |
> |
p.shutdownNow(); |
276 |
> |
else |
277 |
> |
p.shutdown(); |
278 |
> |
// Pool is shutdown, but not yet terminated |
279 |
> |
assertTaskSubmissionsAreRejected(p); |
280 |
> |
assertFalse(p.isTerminated()); |
281 |
> |
|
282 |
> |
done.countDown(); // release blocking tasks |
283 |
> |
assertTrue(p.awaitTermination(LONG_DELAY_MS, MILLISECONDS)); |
284 |
> |
|
285 |
> |
assertTaskSubmissionsAreRejected(p); |
286 |
> |
} |
287 |
> |
assertEquals(p.getCorePoolSize(), p.getCompletedTaskCount()); |
288 |
> |
} |
289 |
> |
|
290 |
> |
/** |
291 |
> |
* getActiveCount increases but doesn't overestimate, when a |
292 |
> |
* thread becomes active |
293 |
> |
*/ |
294 |
> |
public void testGetActiveCount() throws InterruptedException { |
295 |
> |
final CountDownLatch done = new CountDownLatch(1); |
296 |
> |
final ScheduledThreadPoolExecutor p = new ScheduledThreadPoolExecutor(2); |
297 |
> |
try (PoolCleaner cleaner = cleaner(p, done)) { |
298 |
> |
final CountDownLatch threadStarted = new CountDownLatch(1); |
299 |
> |
assertEquals(0, p.getActiveCount()); |
300 |
> |
p.execute(new CheckedRunnable() { |
301 |
> |
public void realRun() throws InterruptedException { |
302 |
> |
threadStarted.countDown(); |
303 |
> |
assertEquals(1, p.getActiveCount()); |
304 |
> |
await(done); |
305 |
> |
}}); |
306 |
> |
await(threadStarted); |
307 |
> |
assertEquals(1, p.getActiveCount()); |
308 |
> |
} |
309 |
> |
} |
310 |
> |
|
311 |
> |
/** |
312 |
> |
* getCompletedTaskCount increases, but doesn't overestimate, |
313 |
> |
* when tasks complete |
314 |
> |
*/ |
315 |
> |
public void testGetCompletedTaskCount() throws InterruptedException { |
316 |
> |
final ThreadPoolExecutor p = new ScheduledThreadPoolExecutor(2); |
317 |
> |
try (PoolCleaner cleaner = cleaner(p)) { |
318 |
> |
final CountDownLatch threadStarted = new CountDownLatch(1); |
319 |
> |
final CountDownLatch threadProceed = new CountDownLatch(1); |
320 |
> |
final CountDownLatch threadDone = new CountDownLatch(1); |
321 |
> |
assertEquals(0, p.getCompletedTaskCount()); |
322 |
> |
p.execute(new CheckedRunnable() { |
323 |
> |
public void realRun() throws InterruptedException { |
324 |
> |
threadStarted.countDown(); |
325 |
> |
assertEquals(0, p.getCompletedTaskCount()); |
326 |
> |
await(threadProceed); |
327 |
> |
threadDone.countDown(); |
328 |
> |
}}); |
329 |
> |
await(threadStarted); |
330 |
> |
assertEquals(0, p.getCompletedTaskCount()); |
331 |
> |
threadProceed.countDown(); |
332 |
> |
await(threadDone); |
333 |
> |
long startTime = System.nanoTime(); |
334 |
> |
while (p.getCompletedTaskCount() != 1) { |
335 |
> |
if (millisElapsedSince(startTime) > LONG_DELAY_MS) |
336 |
> |
fail("timed out"); |
337 |
> |
Thread.yield(); |
338 |
> |
} |
339 |
> |
} |
340 |
> |
} |
341 |
> |
|
342 |
> |
/** |
343 |
> |
* getCorePoolSize returns size given in constructor if not otherwise set |
344 |
> |
*/ |
345 |
> |
public void testGetCorePoolSize() throws InterruptedException { |
346 |
> |
ThreadPoolExecutor p = new ScheduledThreadPoolExecutor(1); |
347 |
> |
try (PoolCleaner cleaner = cleaner(p)) { |
348 |
> |
assertEquals(1, p.getCorePoolSize()); |
349 |
> |
} |
350 |
> |
} |
351 |
> |
|
352 |
> |
/** |
353 |
> |
* getLargestPoolSize increases, but doesn't overestimate, when |
354 |
> |
* multiple threads active |
355 |
> |
*/ |
356 |
> |
public void testGetLargestPoolSize() throws InterruptedException { |
357 |
> |
final int THREADS = 3; |
358 |
> |
final ThreadPoolExecutor p = new ScheduledThreadPoolExecutor(THREADS); |
359 |
> |
final CountDownLatch threadsStarted = new CountDownLatch(THREADS); |
360 |
> |
final CountDownLatch done = new CountDownLatch(1); |
361 |
> |
try (PoolCleaner cleaner = cleaner(p, done)) { |
362 |
> |
assertEquals(0, p.getLargestPoolSize()); |
363 |
> |
for (int i = 0; i < THREADS; i++) |
364 |
> |
p.execute(new CheckedRunnable() { |
365 |
> |
public void realRun() throws InterruptedException { |
366 |
> |
threadsStarted.countDown(); |
367 |
> |
await(done); |
368 |
> |
assertEquals(THREADS, p.getLargestPoolSize()); |
369 |
> |
}}); |
370 |
> |
await(threadsStarted); |
371 |
> |
assertEquals(THREADS, p.getLargestPoolSize()); |
372 |
> |
} |
373 |
> |
assertEquals(THREADS, p.getLargestPoolSize()); |
374 |
> |
} |
375 |
> |
|
376 |
> |
/** |
377 |
> |
* getPoolSize increases, but doesn't overestimate, when threads |
378 |
> |
* become active |
379 |
> |
*/ |
380 |
> |
public void testGetPoolSize() throws InterruptedException { |
381 |
> |
final ThreadPoolExecutor p = new ScheduledThreadPoolExecutor(1); |
382 |
> |
final CountDownLatch threadStarted = new CountDownLatch(1); |
383 |
> |
final CountDownLatch done = new CountDownLatch(1); |
384 |
> |
try (PoolCleaner cleaner = cleaner(p, done)) { |
385 |
> |
assertEquals(0, p.getPoolSize()); |
386 |
> |
p.execute(new CheckedRunnable() { |
387 |
> |
public void realRun() throws InterruptedException { |
388 |
> |
threadStarted.countDown(); |
389 |
> |
assertEquals(1, p.getPoolSize()); |
390 |
> |
await(done); |
391 |
> |
}}); |
392 |
> |
await(threadStarted); |
393 |
> |
assertEquals(1, p.getPoolSize()); |
394 |
> |
} |
395 |
|
} |
396 |
|
|
397 |
|
/** |
398 |
< |
* Test to verify schedule(Callable, long) throws RejectedExecutionException |
399 |
< |
* This occurs on an attempt to schedule a task on a shutdown executor |
400 |
< |
*/ |
401 |
< |
public void testSchedule3_RejectedExecutionException(){ |
402 |
< |
try{ |
403 |
< |
ScheduledExecutor se = new ScheduledExecutor(1); |
404 |
< |
se.shutdown(); |
405 |
< |
se.schedule(new Callable(){ |
406 |
< |
public Object call(){ |
407 |
< |
return Boolean.TRUE; |
398 |
> |
* getTaskCount increases, but doesn't overestimate, when tasks |
399 |
> |
* submitted |
400 |
> |
*/ |
401 |
> |
public void testGetTaskCount() throws InterruptedException { |
402 |
> |
final int TASKS = 3; |
403 |
> |
final CountDownLatch done = new CountDownLatch(1); |
404 |
> |
final ThreadPoolExecutor p = new ScheduledThreadPoolExecutor(1); |
405 |
> |
try (PoolCleaner cleaner = cleaner(p, done)) { |
406 |
> |
final CountDownLatch threadStarted = new CountDownLatch(1); |
407 |
> |
assertEquals(0, p.getTaskCount()); |
408 |
> |
assertEquals(0, p.getCompletedTaskCount()); |
409 |
> |
p.execute(new CheckedRunnable() { |
410 |
> |
public void realRun() throws InterruptedException { |
411 |
> |
threadStarted.countDown(); |
412 |
> |
await(done); |
413 |
> |
}}); |
414 |
> |
await(threadStarted); |
415 |
> |
assertEquals(1, p.getTaskCount()); |
416 |
> |
assertEquals(0, p.getCompletedTaskCount()); |
417 |
> |
for (int i = 0; i < TASKS; i++) { |
418 |
> |
assertEquals(1 + i, p.getTaskCount()); |
419 |
> |
p.execute(new CheckedRunnable() { |
420 |
> |
public void realRun() throws InterruptedException { |
421 |
> |
threadStarted.countDown(); |
422 |
> |
assertEquals(1 + TASKS, p.getTaskCount()); |
423 |
> |
await(done); |
424 |
> |
}}); |
425 |
> |
} |
426 |
> |
assertEquals(1 + TASKS, p.getTaskCount()); |
427 |
> |
assertEquals(0, p.getCompletedTaskCount()); |
428 |
> |
} |
429 |
> |
assertEquals(1 + TASKS, p.getTaskCount()); |
430 |
> |
assertEquals(1 + TASKS, p.getCompletedTaskCount()); |
431 |
> |
} |
432 |
> |
|
433 |
> |
/** |
434 |
> |
* getThreadFactory returns factory in constructor if not set |
435 |
> |
*/ |
436 |
> |
public void testGetThreadFactory() throws InterruptedException { |
437 |
> |
final ThreadFactory threadFactory = new SimpleThreadFactory(); |
438 |
> |
final ScheduledThreadPoolExecutor p = |
439 |
> |
new ScheduledThreadPoolExecutor(1, threadFactory); |
440 |
> |
try (PoolCleaner cleaner = cleaner(p)) { |
441 |
> |
assertSame(threadFactory, p.getThreadFactory()); |
442 |
> |
} |
443 |
> |
} |
444 |
> |
|
445 |
> |
/** |
446 |
> |
* setThreadFactory sets the thread factory returned by getThreadFactory |
447 |
> |
*/ |
448 |
> |
public void testSetThreadFactory() throws InterruptedException { |
449 |
> |
ThreadFactory threadFactory = new SimpleThreadFactory(); |
450 |
> |
final ScheduledThreadPoolExecutor p = new ScheduledThreadPoolExecutor(1); |
451 |
> |
try (PoolCleaner cleaner = cleaner(p)) { |
452 |
> |
p.setThreadFactory(threadFactory); |
453 |
> |
assertSame(threadFactory, p.getThreadFactory()); |
454 |
> |
} |
455 |
> |
} |
456 |
> |
|
457 |
> |
/** |
458 |
> |
* setThreadFactory(null) throws NPE |
459 |
> |
*/ |
460 |
> |
public void testSetThreadFactoryNull() throws InterruptedException { |
461 |
> |
final ScheduledThreadPoolExecutor p = new ScheduledThreadPoolExecutor(1); |
462 |
> |
try (PoolCleaner cleaner = cleaner(p)) { |
463 |
> |
try { |
464 |
> |
p.setThreadFactory(null); |
465 |
> |
shouldThrow(); |
466 |
> |
} catch (NullPointerException success) {} |
467 |
> |
} |
468 |
> |
} |
469 |
> |
|
470 |
> |
/** |
471 |
> |
* The default rejected execution handler is AbortPolicy. |
472 |
> |
*/ |
473 |
> |
public void testDefaultRejectedExecutionHandler() { |
474 |
> |
final ScheduledThreadPoolExecutor p = new ScheduledThreadPoolExecutor(1); |
475 |
> |
try (PoolCleaner cleaner = cleaner(p)) { |
476 |
> |
assertTrue(p.getRejectedExecutionHandler() |
477 |
> |
instanceof ThreadPoolExecutor.AbortPolicy); |
478 |
> |
} |
479 |
> |
} |
480 |
> |
|
481 |
> |
/** |
482 |
> |
* isShutdown is false before shutdown, true after |
483 |
> |
*/ |
484 |
> |
public void testIsShutdown() { |
485 |
> |
final ScheduledThreadPoolExecutor p = new ScheduledThreadPoolExecutor(1); |
486 |
> |
assertFalse(p.isShutdown()); |
487 |
> |
try (PoolCleaner cleaner = cleaner(p)) { |
488 |
> |
try { |
489 |
> |
p.shutdown(); |
490 |
> |
assertTrue(p.isShutdown()); |
491 |
> |
} catch (SecurityException ok) {} |
492 |
> |
} |
493 |
> |
} |
494 |
> |
|
495 |
> |
/** |
496 |
> |
* isTerminated is false before termination, true after |
497 |
> |
*/ |
498 |
> |
public void testIsTerminated() throws InterruptedException { |
499 |
> |
final ThreadPoolExecutor p = new ScheduledThreadPoolExecutor(1); |
500 |
> |
try (PoolCleaner cleaner = cleaner(p)) { |
501 |
> |
final CountDownLatch threadStarted = new CountDownLatch(1); |
502 |
> |
final CountDownLatch done = new CountDownLatch(1); |
503 |
> |
assertFalse(p.isTerminated()); |
504 |
> |
p.execute(new CheckedRunnable() { |
505 |
> |
public void realRun() throws InterruptedException { |
506 |
> |
assertFalse(p.isTerminated()); |
507 |
> |
threadStarted.countDown(); |
508 |
> |
await(done); |
509 |
> |
}}); |
510 |
> |
await(threadStarted); |
511 |
> |
assertFalse(p.isTerminating()); |
512 |
> |
done.countDown(); |
513 |
> |
try { p.shutdown(); } catch (SecurityException ok) { return; } |
514 |
> |
assertTrue(p.awaitTermination(LONG_DELAY_MS, MILLISECONDS)); |
515 |
> |
assertTrue(p.isTerminated()); |
516 |
> |
} |
517 |
> |
} |
518 |
> |
|
519 |
> |
/** |
520 |
> |
* isTerminating is not true when running or when terminated |
521 |
> |
*/ |
522 |
> |
public void testIsTerminating() throws InterruptedException { |
523 |
> |
final ThreadPoolExecutor p = new ScheduledThreadPoolExecutor(1); |
524 |
> |
final CountDownLatch threadStarted = new CountDownLatch(1); |
525 |
> |
final CountDownLatch done = new CountDownLatch(1); |
526 |
> |
try (PoolCleaner cleaner = cleaner(p)) { |
527 |
> |
assertFalse(p.isTerminating()); |
528 |
> |
p.execute(new CheckedRunnable() { |
529 |
> |
public void realRun() throws InterruptedException { |
530 |
> |
assertFalse(p.isTerminating()); |
531 |
> |
threadStarted.countDown(); |
532 |
> |
await(done); |
533 |
> |
}}); |
534 |
> |
await(threadStarted); |
535 |
> |
assertFalse(p.isTerminating()); |
536 |
> |
done.countDown(); |
537 |
> |
try { p.shutdown(); } catch (SecurityException ok) { return; } |
538 |
> |
assertTrue(p.awaitTermination(LONG_DELAY_MS, MILLISECONDS)); |
539 |
> |
assertTrue(p.isTerminated()); |
540 |
> |
assertFalse(p.isTerminating()); |
541 |
> |
} |
542 |
> |
} |
543 |
> |
|
544 |
> |
/** |
545 |
> |
* getQueue returns the work queue, which contains queued tasks |
546 |
> |
*/ |
547 |
> |
public void testGetQueue() throws InterruptedException { |
548 |
> |
final CountDownLatch done = new CountDownLatch(1); |
549 |
> |
final ScheduledThreadPoolExecutor p = new ScheduledThreadPoolExecutor(1); |
550 |
> |
try (PoolCleaner cleaner = cleaner(p, done)) { |
551 |
> |
final CountDownLatch threadStarted = new CountDownLatch(1); |
552 |
> |
@SuppressWarnings("unchecked") |
553 |
> |
ScheduledFuture<?>[] tasks = (ScheduledFuture<?>[])new ScheduledFuture[5]; |
554 |
> |
for (int i = 0; i < tasks.length; i++) { |
555 |
> |
Runnable r = new CheckedRunnable() { |
556 |
> |
public void realRun() throws InterruptedException { |
557 |
> |
threadStarted.countDown(); |
558 |
> |
await(done); |
559 |
> |
}}; |
560 |
> |
tasks[i] = p.schedule(r, 1, MILLISECONDS); |
561 |
> |
} |
562 |
> |
await(threadStarted); |
563 |
> |
BlockingQueue<Runnable> q = p.getQueue(); |
564 |
> |
assertTrue(q.contains(tasks[tasks.length - 1])); |
565 |
> |
assertFalse(q.contains(tasks[0])); |
566 |
> |
} |
567 |
> |
} |
568 |
> |
|
569 |
> |
/** |
570 |
> |
* remove(task) removes queued task, and fails to remove active task |
571 |
> |
*/ |
572 |
> |
public void testRemove() throws InterruptedException { |
573 |
> |
final CountDownLatch done = new CountDownLatch(1); |
574 |
> |
final ScheduledThreadPoolExecutor p = new ScheduledThreadPoolExecutor(1); |
575 |
> |
try (PoolCleaner cleaner = cleaner(p, done)) { |
576 |
> |
@SuppressWarnings("unchecked") |
577 |
> |
ScheduledFuture<?>[] tasks = (ScheduledFuture<?>[])new ScheduledFuture[5]; |
578 |
> |
final CountDownLatch threadStarted = new CountDownLatch(1); |
579 |
> |
for (int i = 0; i < tasks.length; i++) { |
580 |
> |
Runnable r = new CheckedRunnable() { |
581 |
> |
public void realRun() throws InterruptedException { |
582 |
> |
threadStarted.countDown(); |
583 |
> |
await(done); |
584 |
> |
}}; |
585 |
> |
tasks[i] = p.schedule(r, 1, MILLISECONDS); |
586 |
> |
} |
587 |
> |
await(threadStarted); |
588 |
> |
BlockingQueue<Runnable> q = p.getQueue(); |
589 |
> |
assertFalse(p.remove((Runnable)tasks[0])); |
590 |
> |
assertTrue(q.contains((Runnable)tasks[4])); |
591 |
> |
assertTrue(q.contains((Runnable)tasks[3])); |
592 |
> |
assertTrue(p.remove((Runnable)tasks[4])); |
593 |
> |
assertFalse(p.remove((Runnable)tasks[4])); |
594 |
> |
assertFalse(q.contains((Runnable)tasks[4])); |
595 |
> |
assertTrue(q.contains((Runnable)tasks[3])); |
596 |
> |
assertTrue(p.remove((Runnable)tasks[3])); |
597 |
> |
assertFalse(q.contains((Runnable)tasks[3])); |
598 |
> |
} |
599 |
> |
} |
600 |
> |
|
601 |
> |
/** |
602 |
> |
* purge eventually removes cancelled tasks from the queue |
603 |
> |
*/ |
604 |
> |
public void testPurge() throws InterruptedException { |
605 |
> |
@SuppressWarnings("unchecked") |
606 |
> |
ScheduledFuture<?>[] tasks = (ScheduledFuture<?>[])new ScheduledFuture[5]; |
607 |
> |
final Runnable releaser = new Runnable() { public void run() { |
608 |
> |
for (ScheduledFuture<?> task : tasks) |
609 |
> |
if (task != null) task.cancel(true); }}; |
610 |
> |
final ScheduledThreadPoolExecutor p = new ScheduledThreadPoolExecutor(1); |
611 |
> |
try (PoolCleaner cleaner = cleaner(p, releaser)) { |
612 |
> |
for (int i = 0; i < tasks.length; i++) |
613 |
> |
tasks[i] = p.schedule(possiblyInterruptedRunnable(SMALL_DELAY_MS), |
614 |
> |
LONG_DELAY_MS, MILLISECONDS); |
615 |
> |
int max = tasks.length; |
616 |
> |
if (tasks[4].cancel(true)) --max; |
617 |
> |
if (tasks[3].cancel(true)) --max; |
618 |
> |
// There must eventually be an interference-free point at |
619 |
> |
// which purge will not fail. (At worst, when queue is empty.) |
620 |
> |
long startTime = System.nanoTime(); |
621 |
> |
do { |
622 |
> |
p.purge(); |
623 |
> |
long count = p.getTaskCount(); |
624 |
> |
if (count == max) |
625 |
> |
return; |
626 |
> |
} while (millisElapsedSince(startTime) < LONG_DELAY_MS); |
627 |
> |
fail("Purge failed to remove cancelled tasks"); |
628 |
> |
} |
629 |
> |
} |
630 |
> |
|
631 |
> |
/** |
632 |
> |
* shutdownNow returns a list containing tasks that were not run, |
633 |
> |
* and those tasks are drained from the queue |
634 |
> |
*/ |
635 |
> |
public void testShutdownNow() throws InterruptedException { |
636 |
> |
final int poolSize = 2; |
637 |
> |
final int count = 5; |
638 |
> |
final AtomicInteger ran = new AtomicInteger(0); |
639 |
> |
final ScheduledThreadPoolExecutor p = |
640 |
> |
new ScheduledThreadPoolExecutor(poolSize); |
641 |
> |
final CountDownLatch threadsStarted = new CountDownLatch(poolSize); |
642 |
> |
Runnable waiter = new CheckedRunnable() { public void realRun() { |
643 |
> |
threadsStarted.countDown(); |
644 |
> |
try { |
645 |
> |
MILLISECONDS.sleep(LONGER_DELAY_MS); |
646 |
> |
} catch (InterruptedException success) {} |
647 |
> |
ran.getAndIncrement(); |
648 |
> |
}}; |
649 |
> |
for (int i = 0; i < count; i++) |
650 |
> |
p.execute(waiter); |
651 |
> |
await(threadsStarted); |
652 |
> |
assertEquals(poolSize, p.getActiveCount()); |
653 |
> |
assertEquals(0, p.getCompletedTaskCount()); |
654 |
> |
final List<Runnable> queuedTasks; |
655 |
> |
try { |
656 |
> |
queuedTasks = p.shutdownNow(); |
657 |
> |
} catch (SecurityException ok) { |
658 |
> |
return; // Allowed in case test doesn't have privs |
659 |
> |
} |
660 |
> |
assertTrue(p.isShutdown()); |
661 |
> |
assertTrue(p.getQueue().isEmpty()); |
662 |
> |
assertEquals(count - poolSize, queuedTasks.size()); |
663 |
> |
assertTrue(p.awaitTermination(LONG_DELAY_MS, MILLISECONDS)); |
664 |
> |
assertTrue(p.isTerminated()); |
665 |
> |
assertEquals(poolSize, ran.get()); |
666 |
> |
assertEquals(poolSize, p.getCompletedTaskCount()); |
667 |
> |
} |
668 |
> |
|
669 |
> |
/** |
670 |
> |
* shutdownNow returns a list containing tasks that were not run, |
671 |
> |
* and those tasks are drained from the queue |
672 |
> |
*/ |
673 |
> |
public void testShutdownNow_delayedTasks() throws InterruptedException { |
674 |
> |
final ScheduledThreadPoolExecutor p = new ScheduledThreadPoolExecutor(1); |
675 |
> |
List<ScheduledFuture<?>> tasks = new ArrayList<>(); |
676 |
> |
for (int i = 0; i < 3; i++) { |
677 |
> |
Runnable r = new NoOpRunnable(); |
678 |
> |
tasks.add(p.schedule(r, 9, SECONDS)); |
679 |
> |
tasks.add(p.scheduleAtFixedRate(r, 9, 9, SECONDS)); |
680 |
> |
tasks.add(p.scheduleWithFixedDelay(r, 9, 9, SECONDS)); |
681 |
> |
} |
682 |
> |
if (testImplementationDetails) |
683 |
> |
assertEquals(new HashSet<Object>(tasks), new HashSet<Object>(p.getQueue())); |
684 |
> |
final List<Runnable> queuedTasks; |
685 |
> |
try { |
686 |
> |
queuedTasks = p.shutdownNow(); |
687 |
> |
} catch (SecurityException ok) { |
688 |
> |
return; // Allowed in case test doesn't have privs |
689 |
> |
} |
690 |
> |
assertTrue(p.isShutdown()); |
691 |
> |
assertTrue(p.getQueue().isEmpty()); |
692 |
> |
if (testImplementationDetails) |
693 |
> |
assertEquals(new HashSet<Object>(tasks), new HashSet<Object>(queuedTasks)); |
694 |
> |
assertEquals(tasks.size(), queuedTasks.size()); |
695 |
> |
for (ScheduledFuture<?> task : tasks) { |
696 |
> |
assertFalse(task.isDone()); |
697 |
> |
assertFalse(task.isCancelled()); |
698 |
> |
} |
699 |
> |
assertTrue(p.awaitTermination(LONG_DELAY_MS, MILLISECONDS)); |
700 |
> |
assertTrue(p.isTerminated()); |
701 |
> |
} |
702 |
> |
|
703 |
> |
/** |
704 |
> |
* By default, periodic tasks are cancelled at shutdown. |
705 |
> |
* By default, delayed tasks keep running after shutdown. |
706 |
> |
* Check that changing the default values work: |
707 |
> |
* - setExecuteExistingDelayedTasksAfterShutdownPolicy |
708 |
> |
* - setContinueExistingPeriodicTasksAfterShutdownPolicy |
709 |
> |
*/ |
710 |
> |
@SuppressWarnings("FutureReturnValueIgnored") |
711 |
> |
public void testShutdown_cancellation() throws Exception { |
712 |
> |
final int poolSize = 4; |
713 |
> |
final ScheduledThreadPoolExecutor p |
714 |
> |
= new ScheduledThreadPoolExecutor(poolSize); |
715 |
> |
final BlockingQueue<Runnable> q = p.getQueue(); |
716 |
> |
final ThreadLocalRandom rnd = ThreadLocalRandom.current(); |
717 |
> |
final long delay = rnd.nextInt(2); |
718 |
> |
final int rounds = rnd.nextInt(1, 3); |
719 |
> |
final boolean effectiveDelayedPolicy; |
720 |
> |
final boolean effectivePeriodicPolicy; |
721 |
> |
final boolean effectiveRemovePolicy; |
722 |
> |
|
723 |
> |
if (rnd.nextBoolean()) |
724 |
> |
p.setExecuteExistingDelayedTasksAfterShutdownPolicy( |
725 |
> |
effectiveDelayedPolicy = rnd.nextBoolean()); |
726 |
> |
else |
727 |
> |
effectiveDelayedPolicy = true; |
728 |
> |
assertEquals(effectiveDelayedPolicy, |
729 |
> |
p.getExecuteExistingDelayedTasksAfterShutdownPolicy()); |
730 |
> |
|
731 |
> |
if (rnd.nextBoolean()) |
732 |
> |
p.setContinueExistingPeriodicTasksAfterShutdownPolicy( |
733 |
> |
effectivePeriodicPolicy = rnd.nextBoolean()); |
734 |
> |
else |
735 |
> |
effectivePeriodicPolicy = false; |
736 |
> |
assertEquals(effectivePeriodicPolicy, |
737 |
> |
p.getContinueExistingPeriodicTasksAfterShutdownPolicy()); |
738 |
> |
|
739 |
> |
if (rnd.nextBoolean()) |
740 |
> |
p.setRemoveOnCancelPolicy( |
741 |
> |
effectiveRemovePolicy = rnd.nextBoolean()); |
742 |
> |
else |
743 |
> |
effectiveRemovePolicy = false; |
744 |
> |
assertEquals(effectiveRemovePolicy, |
745 |
> |
p.getRemoveOnCancelPolicy()); |
746 |
> |
|
747 |
> |
final boolean periodicTasksContinue = effectivePeriodicPolicy && rnd.nextBoolean(); |
748 |
> |
|
749 |
> |
// Strategy: Wedge the pool with one wave of "blocker" tasks, |
750 |
> |
// then add a second wave that waits in the queue until unblocked. |
751 |
> |
final AtomicInteger ran = new AtomicInteger(0); |
752 |
> |
final CountDownLatch poolBlocked = new CountDownLatch(poolSize); |
753 |
> |
final CountDownLatch unblock = new CountDownLatch(1); |
754 |
> |
final RuntimeException exception = new RuntimeException(); |
755 |
> |
|
756 |
> |
class Task implements Runnable { |
757 |
> |
public void run() { |
758 |
> |
try { |
759 |
> |
ran.getAndIncrement(); |
760 |
> |
poolBlocked.countDown(); |
761 |
> |
await(unblock); |
762 |
> |
} catch (Throwable fail) { threadUnexpectedException(fail); } |
763 |
> |
} |
764 |
> |
} |
765 |
> |
|
766 |
> |
class PeriodicTask extends Task { |
767 |
> |
PeriodicTask(int rounds) { this.rounds = rounds; } |
768 |
> |
int rounds; |
769 |
> |
public void run() { |
770 |
> |
if (--rounds == 0) super.run(); |
771 |
> |
// throw exception to surely terminate this periodic task, |
772 |
> |
// but in a separate execution and in a detectable way. |
773 |
> |
if (rounds == -1) throw exception; |
774 |
> |
} |
775 |
> |
} |
776 |
> |
|
777 |
> |
Runnable task = new Task(); |
778 |
> |
|
779 |
> |
List<Future<?>> immediates = new ArrayList<>(); |
780 |
> |
List<Future<?>> delayeds = new ArrayList<>(); |
781 |
> |
List<Future<?>> periodics = new ArrayList<>(); |
782 |
> |
|
783 |
> |
immediates.add(p.submit(task)); |
784 |
> |
delayeds.add(p.schedule(task, delay, MILLISECONDS)); |
785 |
> |
periodics.add(p.scheduleAtFixedRate( |
786 |
> |
new PeriodicTask(rounds), delay, 1, MILLISECONDS)); |
787 |
> |
periodics.add(p.scheduleWithFixedDelay( |
788 |
> |
new PeriodicTask(rounds), delay, 1, MILLISECONDS)); |
789 |
> |
|
790 |
> |
await(poolBlocked); |
791 |
> |
|
792 |
> |
assertEquals(poolSize, ran.get()); |
793 |
> |
assertEquals(poolSize, p.getActiveCount()); |
794 |
> |
assertTrue(q.isEmpty()); |
795 |
> |
|
796 |
> |
// Add second wave of tasks. |
797 |
> |
immediates.add(p.submit(task)); |
798 |
> |
delayeds.add(p.schedule(task, effectiveDelayedPolicy ? delay : LONG_DELAY_MS, MILLISECONDS)); |
799 |
> |
periodics.add(p.scheduleAtFixedRate( |
800 |
> |
new PeriodicTask(rounds), delay, 1, MILLISECONDS)); |
801 |
> |
periodics.add(p.scheduleWithFixedDelay( |
802 |
> |
new PeriodicTask(rounds), delay, 1, MILLISECONDS)); |
803 |
> |
|
804 |
> |
assertEquals(poolSize, q.size()); |
805 |
> |
assertEquals(poolSize, ran.get()); |
806 |
> |
|
807 |
> |
immediates.forEach( |
808 |
> |
f -> assertTrue(((ScheduledFuture)f).getDelay(NANOSECONDS) <= 0L)); |
809 |
> |
|
810 |
> |
Stream.of(immediates, delayeds, periodics).flatMap(Collection::stream) |
811 |
> |
.forEach(f -> assertFalse(f.isDone())); |
812 |
> |
|
813 |
> |
try { p.shutdown(); } catch (SecurityException ok) { return; } |
814 |
> |
assertTrue(p.isShutdown()); |
815 |
> |
assertTrue(p.isTerminating()); |
816 |
> |
assertFalse(p.isTerminated()); |
817 |
> |
|
818 |
> |
if (rnd.nextBoolean()) |
819 |
> |
assertThrows( |
820 |
> |
RejectedExecutionException.class, |
821 |
> |
() -> p.submit(task), |
822 |
> |
() -> p.schedule(task, 1, SECONDS), |
823 |
> |
() -> p.scheduleAtFixedRate( |
824 |
> |
new PeriodicTask(1), 1, 1, SECONDS), |
825 |
> |
() -> p.scheduleWithFixedDelay( |
826 |
> |
new PeriodicTask(2), 1, 1, SECONDS)); |
827 |
> |
|
828 |
> |
assertTrue(q.contains(immediates.get(1))); |
829 |
> |
assertTrue(!effectiveDelayedPolicy |
830 |
> |
^ q.contains(delayeds.get(1))); |
831 |
> |
assertTrue(!effectivePeriodicPolicy |
832 |
> |
^ q.containsAll(periodics.subList(2, 4))); |
833 |
> |
|
834 |
> |
immediates.forEach(f -> assertFalse(f.isDone())); |
835 |
> |
|
836 |
> |
assertFalse(delayeds.get(0).isDone()); |
837 |
> |
if (effectiveDelayedPolicy) |
838 |
> |
assertFalse(delayeds.get(1).isDone()); |
839 |
> |
else |
840 |
> |
assertTrue(delayeds.get(1).isCancelled()); |
841 |
> |
|
842 |
> |
if (effectivePeriodicPolicy) |
843 |
> |
periodics.forEach( |
844 |
> |
f -> { |
845 |
> |
assertFalse(f.isDone()); |
846 |
> |
if (!periodicTasksContinue) { |
847 |
> |
assertTrue(f.cancel(false)); |
848 |
> |
assertTrue(f.isCancelled()); |
849 |
> |
} |
850 |
> |
}); |
851 |
> |
else { |
852 |
> |
periodics.subList(0, 2).forEach(f -> assertFalse(f.isDone())); |
853 |
> |
periodics.subList(2, 4).forEach(f -> assertTrue(f.isCancelled())); |
854 |
> |
} |
855 |
> |
|
856 |
> |
unblock.countDown(); // Release all pool threads |
857 |
> |
|
858 |
> |
assertTrue(p.awaitTermination(LONG_DELAY_MS, MILLISECONDS)); |
859 |
> |
assertFalse(p.isTerminating()); |
860 |
> |
assertTrue(p.isTerminated()); |
861 |
> |
|
862 |
> |
assertTrue(q.isEmpty()); |
863 |
> |
|
864 |
> |
Stream.of(immediates, delayeds, periodics).flatMap(Collection::stream) |
865 |
> |
.forEach(f -> assertTrue(f.isDone())); |
866 |
> |
|
867 |
> |
for (Future<?> f : immediates) assertNull(f.get()); |
868 |
> |
|
869 |
> |
assertNull(delayeds.get(0).get()); |
870 |
> |
if (effectiveDelayedPolicy) |
871 |
> |
assertNull(delayeds.get(1).get()); |
872 |
> |
else |
873 |
> |
assertTrue(delayeds.get(1).isCancelled()); |
874 |
> |
|
875 |
> |
if (periodicTasksContinue) |
876 |
> |
periodics.forEach( |
877 |
> |
f -> { |
878 |
> |
try { f.get(); } |
879 |
> |
catch (ExecutionException success) { |
880 |
> |
assertSame(exception, success.getCause()); |
881 |
|
} |
882 |
< |
}, 10000, TimeUnit.MILLISECONDS); |
180 |
< |
fail("should throw"); |
181 |
< |
}catch(RejectedExecutionException e){} |
182 |
< |
} |
183 |
< |
|
184 |
< |
/** |
185 |
< |
* Test to verify scheduleAtFixedRate(Runnable, long, long, TimeUnit) throws |
186 |
< |
* RejectedExecutionException. |
187 |
< |
* This occurs on an attempt to schedule a task on a shutdown executor |
188 |
< |
*/ |
189 |
< |
public void testScheduleAtFixedRate1_RejectedExecutionException(){ |
190 |
< |
try{ |
191 |
< |
ScheduledExecutor se = new ScheduledExecutor(1); |
192 |
< |
se.shutdown(); |
193 |
< |
se.scheduleAtFixedRate(new Runnable(){ |
194 |
< |
public void run(){} |
195 |
< |
}, 100, 100, TimeUnit.SECONDS); |
196 |
< |
fail("should throw"); |
197 |
< |
}catch(RejectedExecutionException e){} |
198 |
< |
} |
199 |
< |
|
200 |
< |
/** |
201 |
< |
* Test to verify scheduleAtFixedRate(Runnable, long, long, TimeUnit) throws |
202 |
< |
* RejectedExecutionException. |
203 |
< |
* This occurs on an attempt to schedule a task on a shutdown executor |
204 |
< |
*/ |
205 |
< |
public void testScheduleAtFixedRate2_RejectedExecutionException(){ |
206 |
< |
try{ |
207 |
< |
ScheduledExecutor se = new ScheduledExecutor(1); |
208 |
< |
se.shutdown(); |
209 |
< |
se.scheduleAtFixedRate(new Runnable(){ |
210 |
< |
public void run(){} |
211 |
< |
}, 1, 100, TimeUnit.SECONDS); |
212 |
< |
fail("should throw"); |
213 |
< |
}catch(RejectedExecutionException e){} |
214 |
< |
} |
215 |
< |
|
216 |
< |
/** |
217 |
< |
* Test to verify scheduleWithFixedDelay(Runnable, long, long, TimeUnit) throws |
218 |
< |
* RejectedExecutionException. |
219 |
< |
* This occurs on an attempt to schedule a task on a shutdown executor |
220 |
< |
*/ |
221 |
< |
public void testScheduleWithFixedDelay1_RejectedExecutionException(){ |
222 |
< |
try{ |
223 |
< |
ScheduledExecutor se = new ScheduledExecutor(1); |
224 |
< |
se.shutdown(); |
225 |
< |
se.scheduleWithFixedDelay(new Runnable(){ |
226 |
< |
public void run(){} |
227 |
< |
}, 100, 100, TimeUnit.SECONDS); |
228 |
< |
fail("should throw"); |
229 |
< |
}catch(RejectedExecutionException e){} |
230 |
< |
} |
231 |
< |
|
232 |
< |
/** |
233 |
< |
* Test to verify scheduleWithFixedDelay(Runnable, long, long, TimeUnit) throws |
234 |
< |
* RejectedExecutionException. |
235 |
< |
* This occurs on an attempt to schedule a task on a shutdown executor |
236 |
< |
*/ |
237 |
< |
public void testScheduleWithFixedDelay2_RejectedExecutionException(){ |
238 |
< |
try{ |
239 |
< |
ScheduledExecutor se = new ScheduledExecutor(1); |
240 |
< |
se.shutdown(); |
241 |
< |
se.scheduleWithFixedDelay(new Runnable(){ |
242 |
< |
public void run(){} |
243 |
< |
}, 1, 100, TimeUnit.SECONDS); |
244 |
< |
fail("should throw"); |
245 |
< |
}catch(RejectedExecutionException e){} |
246 |
< |
} |
247 |
< |
|
248 |
< |
/** |
249 |
< |
* Test to verify execute throws RejectedExecutionException |
250 |
< |
* This occurs on an attempt to schedule a task on a shutdown executor |
251 |
< |
*/ |
252 |
< |
public void testExecute_RejectedExecutionException(){ |
253 |
< |
try{ |
254 |
< |
ScheduledExecutor se = new ScheduledExecutor(1); |
255 |
< |
se.shutdown(); |
256 |
< |
se.execute(new Runnable(){ |
257 |
< |
public void run(){} |
882 |
> |
catch (Throwable fail) { threadUnexpectedException(fail); } |
883 |
|
}); |
884 |
< |
fail("should throw"); |
885 |
< |
}catch(RejectedExecutionException e){} |
884 |
> |
else |
885 |
> |
periodics.forEach(f -> assertTrue(f.isCancelled())); |
886 |
> |
|
887 |
> |
assertEquals(poolSize + 1 |
888 |
> |
+ (effectiveDelayedPolicy ? 1 : 0) |
889 |
> |
+ (periodicTasksContinue ? 2 : 0), |
890 |
> |
ran.get()); |
891 |
> |
} |
892 |
> |
|
893 |
> |
/** |
894 |
> |
* completed submit of callable returns result |
895 |
> |
*/ |
896 |
> |
public void testSubmitCallable() throws Exception { |
897 |
> |
final ExecutorService e = new ScheduledThreadPoolExecutor(2); |
898 |
> |
try (PoolCleaner cleaner = cleaner(e)) { |
899 |
> |
Future<String> future = e.submit(new StringTask()); |
900 |
> |
String result = future.get(); |
901 |
> |
assertSame(TEST_STRING, result); |
902 |
> |
} |
903 |
> |
} |
904 |
> |
|
905 |
> |
/** |
906 |
> |
* completed submit of runnable returns successfully |
907 |
> |
*/ |
908 |
> |
public void testSubmitRunnable() throws Exception { |
909 |
> |
final ExecutorService e = new ScheduledThreadPoolExecutor(2); |
910 |
> |
try (PoolCleaner cleaner = cleaner(e)) { |
911 |
> |
Future<?> future = e.submit(new NoOpRunnable()); |
912 |
> |
future.get(); |
913 |
> |
assertTrue(future.isDone()); |
914 |
> |
} |
915 |
> |
} |
916 |
> |
|
917 |
> |
/** |
918 |
> |
* completed submit of (runnable, result) returns result |
919 |
> |
*/ |
920 |
> |
public void testSubmitRunnable2() throws Exception { |
921 |
> |
final ExecutorService e = new ScheduledThreadPoolExecutor(2); |
922 |
> |
try (PoolCleaner cleaner = cleaner(e)) { |
923 |
> |
Future<String> future = e.submit(new NoOpRunnable(), TEST_STRING); |
924 |
> |
String result = future.get(); |
925 |
> |
assertSame(TEST_STRING, result); |
926 |
> |
} |
927 |
> |
} |
928 |
> |
|
929 |
> |
/** |
930 |
> |
* invokeAny(null) throws NullPointerException |
931 |
> |
*/ |
932 |
> |
public void testInvokeAny1() throws Exception { |
933 |
> |
final ExecutorService e = new ScheduledThreadPoolExecutor(2); |
934 |
> |
try (PoolCleaner cleaner = cleaner(e)) { |
935 |
> |
try { |
936 |
> |
e.invokeAny(null); |
937 |
> |
shouldThrow(); |
938 |
> |
} catch (NullPointerException success) {} |
939 |
> |
} |
940 |
> |
} |
941 |
> |
|
942 |
> |
/** |
943 |
> |
* invokeAny(empty collection) throws IllegalArgumentException |
944 |
> |
*/ |
945 |
> |
public void testInvokeAny2() throws Exception { |
946 |
> |
final ExecutorService e = new ScheduledThreadPoolExecutor(2); |
947 |
> |
try (PoolCleaner cleaner = cleaner(e)) { |
948 |
> |
try { |
949 |
> |
e.invokeAny(new ArrayList<Callable<String>>()); |
950 |
> |
shouldThrow(); |
951 |
> |
} catch (IllegalArgumentException success) {} |
952 |
> |
} |
953 |
> |
} |
954 |
> |
|
955 |
> |
/** |
956 |
> |
* invokeAny(c) throws NullPointerException if c has null elements |
957 |
> |
*/ |
958 |
> |
public void testInvokeAny3() throws Exception { |
959 |
> |
CountDownLatch latch = new CountDownLatch(1); |
960 |
> |
final ExecutorService e = new ScheduledThreadPoolExecutor(2); |
961 |
> |
try (PoolCleaner cleaner = cleaner(e)) { |
962 |
> |
List<Callable<String>> l = new ArrayList<>(); |
963 |
> |
l.add(latchAwaitingStringTask(latch)); |
964 |
> |
l.add(null); |
965 |
> |
try { |
966 |
> |
e.invokeAny(l); |
967 |
> |
shouldThrow(); |
968 |
> |
} catch (NullPointerException success) {} |
969 |
> |
latch.countDown(); |
970 |
> |
} |
971 |
> |
} |
972 |
> |
|
973 |
> |
/** |
974 |
> |
* invokeAny(c) throws ExecutionException if no task completes |
975 |
> |
*/ |
976 |
> |
public void testInvokeAny4() throws Exception { |
977 |
> |
final ExecutorService e = new ScheduledThreadPoolExecutor(2); |
978 |
> |
try (PoolCleaner cleaner = cleaner(e)) { |
979 |
> |
List<Callable<String>> l = new ArrayList<>(); |
980 |
> |
l.add(new NPETask()); |
981 |
> |
try { |
982 |
> |
e.invokeAny(l); |
983 |
> |
shouldThrow(); |
984 |
> |
} catch (ExecutionException success) { |
985 |
> |
assertTrue(success.getCause() instanceof NullPointerException); |
986 |
> |
} |
987 |
> |
} |
988 |
> |
} |
989 |
> |
|
990 |
> |
/** |
991 |
> |
* invokeAny(c) returns result of some task |
992 |
> |
*/ |
993 |
> |
public void testInvokeAny5() throws Exception { |
994 |
> |
final ExecutorService e = new ScheduledThreadPoolExecutor(2); |
995 |
> |
try (PoolCleaner cleaner = cleaner(e)) { |
996 |
> |
List<Callable<String>> l = new ArrayList<>(); |
997 |
> |
l.add(new StringTask()); |
998 |
> |
l.add(new StringTask()); |
999 |
> |
String result = e.invokeAny(l); |
1000 |
> |
assertSame(TEST_STRING, result); |
1001 |
> |
} |
1002 |
> |
} |
1003 |
> |
|
1004 |
> |
/** |
1005 |
> |
* invokeAll(null) throws NPE |
1006 |
> |
*/ |
1007 |
> |
public void testInvokeAll1() throws Exception { |
1008 |
> |
final ExecutorService e = new ScheduledThreadPoolExecutor(2); |
1009 |
> |
try (PoolCleaner cleaner = cleaner(e)) { |
1010 |
> |
try { |
1011 |
> |
e.invokeAll(null); |
1012 |
> |
shouldThrow(); |
1013 |
> |
} catch (NullPointerException success) {} |
1014 |
> |
} |
1015 |
> |
} |
1016 |
> |
|
1017 |
> |
/** |
1018 |
> |
* invokeAll(empty collection) returns empty list |
1019 |
> |
*/ |
1020 |
> |
public void testInvokeAll2() throws Exception { |
1021 |
> |
final ExecutorService e = new ScheduledThreadPoolExecutor(2); |
1022 |
> |
final Collection<Callable<String>> emptyCollection |
1023 |
> |
= Collections.emptyList(); |
1024 |
> |
try (PoolCleaner cleaner = cleaner(e)) { |
1025 |
> |
List<Future<String>> r = e.invokeAll(emptyCollection); |
1026 |
> |
assertTrue(r.isEmpty()); |
1027 |
> |
} |
1028 |
> |
} |
1029 |
> |
|
1030 |
> |
/** |
1031 |
> |
* invokeAll(c) throws NPE if c has null elements |
1032 |
> |
*/ |
1033 |
> |
public void testInvokeAll3() throws Exception { |
1034 |
> |
final ExecutorService e = new ScheduledThreadPoolExecutor(2); |
1035 |
> |
try (PoolCleaner cleaner = cleaner(e)) { |
1036 |
> |
List<Callable<String>> l = new ArrayList<>(); |
1037 |
> |
l.add(new StringTask()); |
1038 |
> |
l.add(null); |
1039 |
> |
try { |
1040 |
> |
e.invokeAll(l); |
1041 |
> |
shouldThrow(); |
1042 |
> |
} catch (NullPointerException success) {} |
1043 |
> |
} |
1044 |
> |
} |
1045 |
> |
|
1046 |
> |
/** |
1047 |
> |
* get of invokeAll(c) throws exception on failed task |
1048 |
> |
*/ |
1049 |
> |
public void testInvokeAll4() throws Exception { |
1050 |
> |
final ExecutorService e = new ScheduledThreadPoolExecutor(2); |
1051 |
> |
try (PoolCleaner cleaner = cleaner(e)) { |
1052 |
> |
List<Callable<String>> l = new ArrayList<>(); |
1053 |
> |
l.add(new NPETask()); |
1054 |
> |
List<Future<String>> futures = e.invokeAll(l); |
1055 |
> |
assertEquals(1, futures.size()); |
1056 |
> |
try { |
1057 |
> |
futures.get(0).get(); |
1058 |
> |
shouldThrow(); |
1059 |
> |
} catch (ExecutionException success) { |
1060 |
> |
assertTrue(success.getCause() instanceof NullPointerException); |
1061 |
> |
} |
1062 |
> |
} |
1063 |
> |
} |
1064 |
> |
|
1065 |
> |
/** |
1066 |
> |
* invokeAll(c) returns results of all completed tasks |
1067 |
> |
*/ |
1068 |
> |
public void testInvokeAll5() throws Exception { |
1069 |
> |
final ExecutorService e = new ScheduledThreadPoolExecutor(2); |
1070 |
> |
try (PoolCleaner cleaner = cleaner(e)) { |
1071 |
> |
List<Callable<String>> l = new ArrayList<>(); |
1072 |
> |
l.add(new StringTask()); |
1073 |
> |
l.add(new StringTask()); |
1074 |
> |
List<Future<String>> futures = e.invokeAll(l); |
1075 |
> |
assertEquals(2, futures.size()); |
1076 |
> |
for (Future<String> future : futures) |
1077 |
> |
assertSame(TEST_STRING, future.get()); |
1078 |
> |
} |
1079 |
> |
} |
1080 |
> |
|
1081 |
> |
/** |
1082 |
> |
* timed invokeAny(null) throws NPE |
1083 |
> |
*/ |
1084 |
> |
public void testTimedInvokeAny1() throws Exception { |
1085 |
> |
final ExecutorService e = new ScheduledThreadPoolExecutor(2); |
1086 |
> |
try (PoolCleaner cleaner = cleaner(e)) { |
1087 |
> |
try { |
1088 |
> |
e.invokeAny(null, randomTimeout(), randomTimeUnit()); |
1089 |
> |
shouldThrow(); |
1090 |
> |
} catch (NullPointerException success) {} |
1091 |
> |
} |
1092 |
> |
} |
1093 |
> |
|
1094 |
> |
/** |
1095 |
> |
* timed invokeAny(,,null) throws NullPointerException |
1096 |
> |
*/ |
1097 |
> |
public void testTimedInvokeAnyNullTimeUnit() throws Exception { |
1098 |
> |
final ExecutorService e = new ScheduledThreadPoolExecutor(2); |
1099 |
> |
try (PoolCleaner cleaner = cleaner(e)) { |
1100 |
> |
List<Callable<String>> l = new ArrayList<>(); |
1101 |
> |
l.add(new StringTask()); |
1102 |
> |
try { |
1103 |
> |
e.invokeAny(l, randomTimeout(), null); |
1104 |
> |
shouldThrow(); |
1105 |
> |
} catch (NullPointerException success) {} |
1106 |
> |
} |
1107 |
> |
} |
1108 |
> |
|
1109 |
> |
/** |
1110 |
> |
* timed invokeAny(empty collection) throws IllegalArgumentException |
1111 |
> |
*/ |
1112 |
> |
public void testTimedInvokeAny2() throws Exception { |
1113 |
> |
final ExecutorService e = new ScheduledThreadPoolExecutor(2); |
1114 |
> |
final Collection<Callable<String>> emptyCollection |
1115 |
> |
= Collections.emptyList(); |
1116 |
> |
try (PoolCleaner cleaner = cleaner(e)) { |
1117 |
> |
try { |
1118 |
> |
e.invokeAny(emptyCollection, randomTimeout(), randomTimeUnit()); |
1119 |
> |
shouldThrow(); |
1120 |
> |
} catch (IllegalArgumentException success) {} |
1121 |
> |
} |
1122 |
> |
} |
1123 |
> |
|
1124 |
> |
/** |
1125 |
> |
* timed invokeAny(c) throws NPE if c has null elements |
1126 |
> |
*/ |
1127 |
> |
public void testTimedInvokeAny3() throws Exception { |
1128 |
> |
CountDownLatch latch = new CountDownLatch(1); |
1129 |
> |
final ExecutorService e = new ScheduledThreadPoolExecutor(2); |
1130 |
> |
try (PoolCleaner cleaner = cleaner(e)) { |
1131 |
> |
List<Callable<String>> l = new ArrayList<>(); |
1132 |
> |
l.add(latchAwaitingStringTask(latch)); |
1133 |
> |
l.add(null); |
1134 |
> |
try { |
1135 |
> |
e.invokeAny(l, randomTimeout(), randomTimeUnit()); |
1136 |
> |
shouldThrow(); |
1137 |
> |
} catch (NullPointerException success) {} |
1138 |
> |
latch.countDown(); |
1139 |
> |
} |
1140 |
> |
} |
1141 |
> |
|
1142 |
> |
/** |
1143 |
> |
* timed invokeAny(c) throws ExecutionException if no task completes |
1144 |
> |
*/ |
1145 |
> |
public void testTimedInvokeAny4() throws Exception { |
1146 |
> |
final ExecutorService e = new ScheduledThreadPoolExecutor(2); |
1147 |
> |
try (PoolCleaner cleaner = cleaner(e)) { |
1148 |
> |
long startTime = System.nanoTime(); |
1149 |
> |
List<Callable<String>> l = new ArrayList<>(); |
1150 |
> |
l.add(new NPETask()); |
1151 |
> |
try { |
1152 |
> |
e.invokeAny(l, LONG_DELAY_MS, MILLISECONDS); |
1153 |
> |
shouldThrow(); |
1154 |
> |
} catch (ExecutionException success) { |
1155 |
> |
assertTrue(success.getCause() instanceof NullPointerException); |
1156 |
> |
} |
1157 |
> |
assertTrue(millisElapsedSince(startTime) < LONG_DELAY_MS); |
1158 |
> |
} |
1159 |
> |
} |
1160 |
> |
|
1161 |
> |
/** |
1162 |
> |
* timed invokeAny(c) returns result of some task |
1163 |
> |
*/ |
1164 |
> |
public void testTimedInvokeAny5() throws Exception { |
1165 |
> |
final ExecutorService e = new ScheduledThreadPoolExecutor(2); |
1166 |
> |
try (PoolCleaner cleaner = cleaner(e)) { |
1167 |
> |
long startTime = System.nanoTime(); |
1168 |
> |
List<Callable<String>> l = new ArrayList<>(); |
1169 |
> |
l.add(new StringTask()); |
1170 |
> |
l.add(new StringTask()); |
1171 |
> |
String result = e.invokeAny(l, LONG_DELAY_MS, MILLISECONDS); |
1172 |
> |
assertSame(TEST_STRING, result); |
1173 |
> |
assertTrue(millisElapsedSince(startTime) < LONG_DELAY_MS); |
1174 |
> |
} |
1175 |
> |
} |
1176 |
> |
|
1177 |
> |
/** |
1178 |
> |
* timed invokeAll(null) throws NPE |
1179 |
> |
*/ |
1180 |
> |
public void testTimedInvokeAll1() throws Exception { |
1181 |
> |
final ExecutorService e = new ScheduledThreadPoolExecutor(2); |
1182 |
> |
try (PoolCleaner cleaner = cleaner(e)) { |
1183 |
> |
try { |
1184 |
> |
e.invokeAll(null, randomTimeout(), randomTimeUnit()); |
1185 |
> |
shouldThrow(); |
1186 |
> |
} catch (NullPointerException success) {} |
1187 |
> |
} |
1188 |
> |
} |
1189 |
> |
|
1190 |
> |
/** |
1191 |
> |
* timed invokeAll(,,null) throws NPE |
1192 |
> |
*/ |
1193 |
> |
public void testTimedInvokeAllNullTimeUnit() throws Exception { |
1194 |
> |
final ExecutorService e = new ScheduledThreadPoolExecutor(2); |
1195 |
> |
try (PoolCleaner cleaner = cleaner(e)) { |
1196 |
> |
List<Callable<String>> l = new ArrayList<>(); |
1197 |
> |
l.add(new StringTask()); |
1198 |
> |
try { |
1199 |
> |
e.invokeAll(l, randomTimeout(), null); |
1200 |
> |
shouldThrow(); |
1201 |
> |
} catch (NullPointerException success) {} |
1202 |
> |
} |
1203 |
> |
} |
1204 |
> |
|
1205 |
> |
/** |
1206 |
> |
* timed invokeAll(empty collection) returns empty list |
1207 |
> |
*/ |
1208 |
> |
public void testTimedInvokeAll2() throws Exception { |
1209 |
> |
final ExecutorService e = new ScheduledThreadPoolExecutor(2); |
1210 |
> |
final Collection<Callable<String>> emptyCollection |
1211 |
> |
= Collections.emptyList(); |
1212 |
> |
try (PoolCleaner cleaner = cleaner(e)) { |
1213 |
> |
List<Future<String>> r = |
1214 |
> |
e.invokeAll(emptyCollection, randomTimeout(), randomTimeUnit()); |
1215 |
> |
assertTrue(r.isEmpty()); |
1216 |
> |
} |
1217 |
> |
} |
1218 |
> |
|
1219 |
> |
/** |
1220 |
> |
* timed invokeAll(c) throws NPE if c has null elements |
1221 |
> |
*/ |
1222 |
> |
public void testTimedInvokeAll3() throws Exception { |
1223 |
> |
final ExecutorService e = new ScheduledThreadPoolExecutor(2); |
1224 |
> |
try (PoolCleaner cleaner = cleaner(e)) { |
1225 |
> |
List<Callable<String>> l = new ArrayList<>(); |
1226 |
> |
l.add(new StringTask()); |
1227 |
> |
l.add(null); |
1228 |
> |
try { |
1229 |
> |
e.invokeAll(l, randomTimeout(), randomTimeUnit()); |
1230 |
> |
shouldThrow(); |
1231 |
> |
} catch (NullPointerException success) {} |
1232 |
> |
} |
1233 |
> |
} |
1234 |
> |
|
1235 |
> |
/** |
1236 |
> |
* get of element of invokeAll(c) throws exception on failed task |
1237 |
> |
*/ |
1238 |
> |
public void testTimedInvokeAll4() throws Exception { |
1239 |
> |
final ExecutorService e = new ScheduledThreadPoolExecutor(2); |
1240 |
> |
try (PoolCleaner cleaner = cleaner(e)) { |
1241 |
> |
List<Callable<String>> l = new ArrayList<>(); |
1242 |
> |
l.add(new NPETask()); |
1243 |
> |
List<Future<String>> futures = |
1244 |
> |
e.invokeAll(l, LONG_DELAY_MS, MILLISECONDS); |
1245 |
> |
assertEquals(1, futures.size()); |
1246 |
> |
try { |
1247 |
> |
futures.get(0).get(); |
1248 |
> |
shouldThrow(); |
1249 |
> |
} catch (ExecutionException success) { |
1250 |
> |
assertTrue(success.getCause() instanceof NullPointerException); |
1251 |
> |
} |
1252 |
> |
} |
1253 |
> |
} |
1254 |
> |
|
1255 |
> |
/** |
1256 |
> |
* timed invokeAll(c) returns results of all completed tasks |
1257 |
> |
*/ |
1258 |
> |
public void testTimedInvokeAll5() throws Exception { |
1259 |
> |
final ExecutorService e = new ScheduledThreadPoolExecutor(2); |
1260 |
> |
try (PoolCleaner cleaner = cleaner(e)) { |
1261 |
> |
List<Callable<String>> l = new ArrayList<>(); |
1262 |
> |
l.add(new StringTask()); |
1263 |
> |
l.add(new StringTask()); |
1264 |
> |
List<Future<String>> futures = |
1265 |
> |
e.invokeAll(l, LONG_DELAY_MS, MILLISECONDS); |
1266 |
> |
assertEquals(2, futures.size()); |
1267 |
> |
for (Future<String> future : futures) |
1268 |
> |
assertSame(TEST_STRING, future.get()); |
1269 |
> |
} |
1270 |
> |
} |
1271 |
> |
|
1272 |
> |
/** |
1273 |
> |
* timed invokeAll(c) cancels tasks not completed by timeout |
1274 |
> |
*/ |
1275 |
> |
public void testTimedInvokeAll6() throws Exception { |
1276 |
> |
for (long timeout = timeoutMillis();;) { |
1277 |
> |
final CountDownLatch done = new CountDownLatch(1); |
1278 |
> |
final Callable<String> waiter = new CheckedCallable<String>() { |
1279 |
> |
public String realCall() { |
1280 |
> |
try { done.await(LONG_DELAY_MS, MILLISECONDS); } |
1281 |
> |
catch (InterruptedException ok) {} |
1282 |
> |
return "1"; }}; |
1283 |
> |
final ExecutorService p = new ScheduledThreadPoolExecutor(2); |
1284 |
> |
try (PoolCleaner cleaner = cleaner(p, done)) { |
1285 |
> |
List<Callable<String>> tasks = new ArrayList<>(); |
1286 |
> |
tasks.add(new StringTask("0")); |
1287 |
> |
tasks.add(waiter); |
1288 |
> |
tasks.add(new StringTask("2")); |
1289 |
> |
long startTime = System.nanoTime(); |
1290 |
> |
List<Future<String>> futures = |
1291 |
> |
p.invokeAll(tasks, timeout, MILLISECONDS); |
1292 |
> |
assertEquals(tasks.size(), futures.size()); |
1293 |
> |
assertTrue(millisElapsedSince(startTime) >= timeout); |
1294 |
> |
for (Future<?> future : futures) |
1295 |
> |
assertTrue(future.isDone()); |
1296 |
> |
assertTrue(futures.get(1).isCancelled()); |
1297 |
> |
try { |
1298 |
> |
assertEquals("0", futures.get(0).get()); |
1299 |
> |
assertEquals("2", futures.get(2).get()); |
1300 |
> |
break; |
1301 |
> |
} catch (CancellationException retryWithLongerTimeout) { |
1302 |
> |
timeout *= 2; |
1303 |
> |
if (timeout >= LONG_DELAY_MS / 2) |
1304 |
> |
fail("expected exactly one task to be cancelled"); |
1305 |
> |
} |
1306 |
> |
} |
1307 |
> |
} |
1308 |
> |
} |
1309 |
> |
|
1310 |
> |
/** |
1311 |
> |
* A fixed delay task with overflowing period should not prevent a |
1312 |
> |
* one-shot task from executing. |
1313 |
> |
* https://bugs.openjdk.java.net/browse/JDK-8051859 |
1314 |
> |
*/ |
1315 |
> |
@SuppressWarnings("FutureReturnValueIgnored") |
1316 |
> |
public void testScheduleWithFixedDelay_overflow() throws Exception { |
1317 |
> |
final CountDownLatch delayedDone = new CountDownLatch(1); |
1318 |
> |
final CountDownLatch immediateDone = new CountDownLatch(1); |
1319 |
> |
final ScheduledThreadPoolExecutor p = new ScheduledThreadPoolExecutor(1); |
1320 |
> |
try (PoolCleaner cleaner = cleaner(p)) { |
1321 |
> |
final Runnable delayed = () -> { |
1322 |
> |
delayedDone.countDown(); |
1323 |
> |
p.submit(() -> immediateDone.countDown()); |
1324 |
> |
}; |
1325 |
> |
p.scheduleWithFixedDelay(delayed, 0L, Long.MAX_VALUE, SECONDS); |
1326 |
> |
await(delayedDone); |
1327 |
> |
await(immediateDone); |
1328 |
> |
} |
1329 |
|
} |
1330 |
|
|
1331 |
|
} |