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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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*/ |
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|
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import java.util.concurrent.*; |
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import junit.framework.*; |
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import java.util.List; |
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|
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public class ThreadPoolExecutorTest 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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} |
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public static Test suite() { |
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return new TestSuite(ThreadPoolExecutorTest.class); |
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} |
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|
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/** |
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* For use as ThreadFactory in constructors |
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*/ |
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static class MyThreadFactory implements ThreadFactory{ |
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public Thread newThread(Runnable r){ |
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return new Thread(r); |
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} |
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} |
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|
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/** |
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* For use as RejectedExecutionHandler in constructors |
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*/ |
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static class MyREHandler implements RejectedExecutionHandler{ |
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public void rejectedExecution(Runnable r, ThreadPoolExecutor executor){} |
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} |
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|
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/** |
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* execute successfully executes a runnable |
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*/ |
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public void testExecute() { |
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ThreadPoolExecutor p1 = new ThreadPoolExecutor(1, 1, MEDIUM_DELAY_MS, TimeUnit.MILLISECONDS, new ArrayBlockingQueue<Runnable>(10)); |
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try { |
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p1.execute(new Runnable() { |
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public void run() { |
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try { |
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Thread.sleep(SHORT_DELAY_MS); |
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} catch(InterruptedException e){ |
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threadUnexpectedException(); |
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} |
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} |
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}); |
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Thread.sleep(SMALL_DELAY_MS); |
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} catch(InterruptedException e){ |
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unexpectedException(); |
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} |
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joinPool(p1); |
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} |
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|
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/** |
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* getActiveCount gives correct values |
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*/ |
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public void testGetActiveCount() { |
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ThreadPoolExecutor p2 = new ThreadPoolExecutor(2, 2, MEDIUM_DELAY_MS, TimeUnit.MILLISECONDS, new ArrayBlockingQueue<Runnable>(10)); |
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assertEquals(0, p2.getActiveCount()); |
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p2.execute(new MediumRunnable()); |
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try { |
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Thread.sleep(SHORT_DELAY_MS); |
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} catch(Exception e){ |
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unexpectedException(); |
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} |
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assertEquals(1, p2.getActiveCount()); |
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joinPool(p2); |
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} |
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|
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/** |
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* getCompleteTaskCount gives correct values |
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*/ |
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public void testGetCompletedTaskCount() { |
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ThreadPoolExecutor p2 = new ThreadPoolExecutor(2, 2, MEDIUM_DELAY_MS, TimeUnit.MILLISECONDS, new ArrayBlockingQueue<Runnable>(10)); |
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assertEquals(0, p2.getCompletedTaskCount()); |
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p2.execute(new ShortRunnable()); |
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try { |
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Thread.sleep(MEDIUM_DELAY_MS); |
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} catch(Exception e){ |
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unexpectedException(); |
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} |
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assertEquals(1, p2.getCompletedTaskCount()); |
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p2.shutdown(); |
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joinPool(p2); |
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} |
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|
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/** |
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* getCorePoolSize gives correct values |
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*/ |
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public void testGetCorePoolSize() { |
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ThreadPoolExecutor p1 = new ThreadPoolExecutor(1, 1, MEDIUM_DELAY_MS, TimeUnit.MILLISECONDS, new ArrayBlockingQueue<Runnable>(10)); |
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assertEquals(1, p1.getCorePoolSize()); |
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joinPool(p1); |
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} |
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|
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/** |
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* getKeepAliveTime gives correct values |
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*/ |
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public void testGetKeepAliveTime() { |
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ThreadPoolExecutor p2 = new ThreadPoolExecutor(2, 2, 1000, TimeUnit.MILLISECONDS, new ArrayBlockingQueue<Runnable>(10)); |
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assertEquals(1, p2.getKeepAliveTime(TimeUnit.SECONDS)); |
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joinPool(p2); |
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} |
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|
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/** |
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* getLargestPoolSize gives correct values |
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*/ |
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public void testGetLargestPoolSize() { |
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ThreadPoolExecutor p2 = new ThreadPoolExecutor(2, 2, MEDIUM_DELAY_MS, TimeUnit.MILLISECONDS, new ArrayBlockingQueue<Runnable>(10)); |
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try { |
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assertEquals(0, p2.getLargestPoolSize()); |
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p2.execute(new MediumRunnable()); |
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p2.execute(new MediumRunnable()); |
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Thread.sleep(SHORT_DELAY_MS); |
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assertEquals(2, p2.getLargestPoolSize()); |
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} catch(Exception e){ |
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unexpectedException(); |
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} |
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joinPool(p2); |
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} |
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|
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/** |
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* getMaximumPoolSize gives correct values |
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*/ |
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public void testGetMaximumPoolSize() { |
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ThreadPoolExecutor p2 = new ThreadPoolExecutor(2, 2, MEDIUM_DELAY_MS, TimeUnit.MILLISECONDS, new ArrayBlockingQueue<Runnable>(10)); |
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assertEquals(2, p2.getMaximumPoolSize()); |
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joinPool(p2); |
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} |
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|
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/** |
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* getPoolSize gives correct values |
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*/ |
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public void testGetPoolSize() { |
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ThreadPoolExecutor p1 = new ThreadPoolExecutor(1, 1, MEDIUM_DELAY_MS, TimeUnit.MILLISECONDS, new ArrayBlockingQueue<Runnable>(10)); |
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assertEquals(0, p1.getPoolSize()); |
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p1.execute(new MediumRunnable()); |
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assertEquals(1, p1.getPoolSize()); |
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joinPool(p1); |
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} |
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|
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/** |
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* getTaskCount gives correct values |
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*/ |
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public void testGetTaskCount() { |
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ThreadPoolExecutor p1 = new ThreadPoolExecutor(1, 1, MEDIUM_DELAY_MS, TimeUnit.MILLISECONDS, new ArrayBlockingQueue<Runnable>(10)); |
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try { |
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assertEquals(0, p1.getTaskCount()); |
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p1.execute(new MediumRunnable()); |
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Thread.sleep(SHORT_DELAY_MS); |
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assertEquals(1, p1.getTaskCount()); |
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} catch(Exception e){ |
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unexpectedException(); |
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} |
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joinPool(p1); |
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} |
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|
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/** |
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* isShutDown gives correct values |
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*/ |
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public void testIsShutdown() { |
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|
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ThreadPoolExecutor p1 = new ThreadPoolExecutor(1, 1, MEDIUM_DELAY_MS, TimeUnit.MILLISECONDS, new ArrayBlockingQueue<Runnable>(10)); |
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assertFalse(p1.isShutdown()); |
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p1.shutdown(); |
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assertTrue(p1.isShutdown()); |
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joinPool(p1); |
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} |
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|
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|
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/** |
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* isTerminated gives correct values |
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* Makes sure termination does not take an innapropriate |
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* amount of time |
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*/ |
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public void testIsTerminated() { |
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ThreadPoolExecutor p1 = new ThreadPoolExecutor(1, 1, MEDIUM_DELAY_MS, TimeUnit.MILLISECONDS, new ArrayBlockingQueue<Runnable>(10)); |
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try { |
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p1.execute(new MediumRunnable()); |
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} finally { |
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p1.shutdown(); |
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} |
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try { |
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assertTrue(p1.awaitTermination(LONG_DELAY_MS, TimeUnit.MILLISECONDS)); |
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assertTrue(p1.isTerminated()); |
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} catch(Exception e){ |
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unexpectedException(); |
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} |
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} |
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|
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/** |
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* isTerminating gives correct values |
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*/ |
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public void testIsTerminating() { |
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ThreadPoolExecutor p1 = new ThreadPoolExecutor(1, 1, MEDIUM_DELAY_MS, TimeUnit.MILLISECONDS, new ArrayBlockingQueue<Runnable>(10)); |
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assertFalse(p1.isTerminating()); |
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try { |
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p1.execute(new SmallRunnable()); |
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assertFalse(p1.isTerminating()); |
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} finally { |
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p1.shutdown(); |
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} |
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try { |
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assertTrue(p1.awaitTermination(LONG_DELAY_MS, TimeUnit.MILLISECONDS)); |
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assertTrue(p1.isTerminated()); |
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assertFalse(p1.isTerminating()); |
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} catch(Exception e){ |
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unexpectedException(); |
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} |
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} |
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|
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/** |
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* purge correctly removes cancelled tasks |
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* from the queue |
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*/ |
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public void testPurge() { |
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ThreadPoolExecutor p1 = new ThreadPoolExecutor(1, 1, MEDIUM_DELAY_MS, TimeUnit.MILLISECONDS, new ArrayBlockingQueue<Runnable>(10)); |
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CancellableTask[] tasks = new CancellableTask[5]; |
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for(int i = 0; i < 5; i++){ |
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tasks[i] = new CancellableTask(new MediumPossiblyInterruptedRunnable()); |
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p1.execute(tasks[i]); |
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} |
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tasks[4].cancel(true); |
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tasks[3].cancel(true); |
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p1.purge(); |
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long count = p1.getTaskCount(); |
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assertTrue(count >= 2 && count < 5); |
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joinPool(p1); |
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} |
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|
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/** |
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* shutDownNow returns a list |
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* containing the correct number of elements |
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*/ |
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public void testShutDownNow() { |
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ThreadPoolExecutor p1 = new ThreadPoolExecutor(1, 1, MEDIUM_DELAY_MS, TimeUnit.MILLISECONDS, new ArrayBlockingQueue<Runnable>(10)); |
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List l; |
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try { |
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for(int i = 0; i < 5; i++) |
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p1.execute(new MediumPossiblyInterruptedRunnable()); |
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} |
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finally { |
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l = p1.shutdownNow(); |
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} |
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assertTrue(p1.isShutdown()); |
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assertTrue(l.size() <= 4); |
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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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/** Throws if corePoolSize argument is less than zero */ |
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public void testConstructor1() { |
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try { |
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new ThreadPoolExecutor(-1,1,LONG_DELAY_MS, TimeUnit.MILLISECONDS, new ArrayBlockingQueue<Runnable>(10)); |
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shouldThrow(); |
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} |
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catch (IllegalArgumentException success){} |
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} |
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|
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/** Throws if maximumPoolSize is less than zero */ |
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public void testConstructor2() { |
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try { |
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new ThreadPoolExecutor(1,-1,LONG_DELAY_MS, TimeUnit.MILLISECONDS, new ArrayBlockingQueue<Runnable>(10)); |
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shouldThrow(); |
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} |
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catch (IllegalArgumentException success){} |
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} |
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|
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/** Throws if maximumPoolSize is equal to zero */ |
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public void testConstructor3() { |
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try { |
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new ThreadPoolExecutor(1,0,LONG_DELAY_MS, TimeUnit.MILLISECONDS, new ArrayBlockingQueue<Runnable>(10)); |
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shouldThrow(); |
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} |
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catch (IllegalArgumentException success){} |
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} |
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|
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/** Throws if keepAliveTime is less than zero */ |
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public void testConstructor4() { |
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try { |
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new ThreadPoolExecutor(1,2,-1L,TimeUnit.MILLISECONDS, new ArrayBlockingQueue<Runnable>(10)); |
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shouldThrow(); |
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} |
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catch (IllegalArgumentException success){} |
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} |
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|
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/** Throws if corePoolSize is greater than the maximumPoolSize */ |
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public void testConstructor5() { |
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try { |
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new ThreadPoolExecutor(2,1,LONG_DELAY_MS, TimeUnit.MILLISECONDS, new ArrayBlockingQueue<Runnable>(10)); |
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shouldThrow(); |
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} |
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catch (IllegalArgumentException success){} |
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} |
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|
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/** Throws if workQueue is set to null */ |
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public void testNullPointerException() { |
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try { |
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new ThreadPoolExecutor(1,2,SHORT_DELAY_MS, TimeUnit.MILLISECONDS,null); |
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shouldThrow(); |
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} |
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catch (NullPointerException success){} |
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} |
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|
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|
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|
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/** Throws if corePoolSize argument is less than zero */ |
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public void testConstructor6() { |
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try { |
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new ThreadPoolExecutor(-1,1,LONG_DELAY_MS, TimeUnit.MILLISECONDS, new ArrayBlockingQueue<Runnable>(10),new MyThreadFactory()); |
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shouldThrow(); |
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} catch (IllegalArgumentException success){} |
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} |
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|
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/** Throws if maximumPoolSize is less than zero */ |
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public void testConstructor7() { |
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try { |
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new ThreadPoolExecutor(1,-1,SHORT_DELAY_MS, TimeUnit.MILLISECONDS, new ArrayBlockingQueue<Runnable>(10),new MyThreadFactory()); |
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shouldThrow(); |
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} |
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catch (IllegalArgumentException success){} |
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} |
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|
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/** Throws if maximumPoolSize is equal to zero */ |
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public void testConstructor8() { |
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try { |
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new ThreadPoolExecutor(1,0,SHORT_DELAY_MS, TimeUnit.MILLISECONDS, new ArrayBlockingQueue<Runnable>(10),new MyThreadFactory()); |
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shouldThrow(); |
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} |
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catch (IllegalArgumentException success){} |
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} |
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|
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/** Throws if keepAliveTime is less than zero */ |
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public void testConstructor9() { |
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try { |
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new ThreadPoolExecutor(1,2,-1L,TimeUnit.MILLISECONDS, new ArrayBlockingQueue<Runnable>(10),new MyThreadFactory()); |
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shouldThrow(); |
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} |
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catch (IllegalArgumentException success){} |
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} |
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|
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/** Throws if corePoolSize is greater than the maximumPoolSize */ |
348 |
public void testConstructor10() { |
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try { |
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new ThreadPoolExecutor(2,1,SHORT_DELAY_MS, TimeUnit.MILLISECONDS, new ArrayBlockingQueue<Runnable>(10),new MyThreadFactory()); |
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shouldThrow(); |
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} |
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catch (IllegalArgumentException success){} |
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} |
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|
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/** Throws if workQueue is set to null */ |
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public void testNullPointerException2() { |
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try { |
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new ThreadPoolExecutor(1,2,SHORT_DELAY_MS, TimeUnit.MILLISECONDS,null,new MyThreadFactory()); |
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shouldThrow(); |
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} |
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catch (NullPointerException success){} |
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} |
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|
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/** Throws if threadFactory is set to null */ |
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public void testNullPointerException3() { |
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try { |
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ThreadFactory f = null; |
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new ThreadPoolExecutor(1,2,SHORT_DELAY_MS, TimeUnit.MILLISECONDS,new ArrayBlockingQueue<Runnable>(10),f); |
370 |
shouldThrow(); |
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} |
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catch (NullPointerException success){} |
373 |
} |
374 |
|
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|
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/** Throws if corePoolSize argument is less than zero */ |
377 |
public void testConstructor11() { |
378 |
try { |
379 |
new ThreadPoolExecutor(-1,1,SHORT_DELAY_MS, TimeUnit.MILLISECONDS, new ArrayBlockingQueue<Runnable>(10),new MyREHandler()); |
380 |
shouldThrow(); |
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} |
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catch (IllegalArgumentException success){} |
383 |
} |
384 |
|
385 |
/** Throws if maximumPoolSize is less than zero */ |
386 |
public void testConstructor12() { |
387 |
try { |
388 |
new ThreadPoolExecutor(1,-1,SHORT_DELAY_MS, TimeUnit.MILLISECONDS, new ArrayBlockingQueue<Runnable>(10),new MyREHandler()); |
389 |
shouldThrow(); |
390 |
} |
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catch (IllegalArgumentException success){} |
392 |
} |
393 |
|
394 |
/** Throws if maximumPoolSize is equal to zero */ |
395 |
public void testConstructor13() { |
396 |
try { |
397 |
new ThreadPoolExecutor(1,0,SHORT_DELAY_MS, TimeUnit.MILLISECONDS, new ArrayBlockingQueue<Runnable>(10),new MyREHandler()); |
398 |
shouldThrow(); |
399 |
} |
400 |
catch (IllegalArgumentException success){} |
401 |
} |
402 |
|
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/** Throws if keepAliveTime is less than zero */ |
404 |
public void testConstructor14() { |
405 |
try { |
406 |
new ThreadPoolExecutor(1,2,-1L,TimeUnit.MILLISECONDS, new ArrayBlockingQueue<Runnable>(10),new MyREHandler()); |
407 |
shouldThrow(); |
408 |
} |
409 |
catch (IllegalArgumentException success){} |
410 |
} |
411 |
|
412 |
/** Throws if corePoolSize is greater than the maximumPoolSize */ |
413 |
public void testConstructor15() { |
414 |
try { |
415 |
new ThreadPoolExecutor(2,1,SHORT_DELAY_MS, TimeUnit.MILLISECONDS, new ArrayBlockingQueue<Runnable>(10),new MyREHandler()); |
416 |
shouldThrow(); |
417 |
} |
418 |
catch (IllegalArgumentException success){} |
419 |
} |
420 |
|
421 |
/** Throws if workQueue is set to null */ |
422 |
public void testNullPointerException4() { |
423 |
try { |
424 |
new ThreadPoolExecutor(1,2,SHORT_DELAY_MS, TimeUnit.MILLISECONDS,null,new MyREHandler()); |
425 |
shouldThrow(); |
426 |
} |
427 |
catch (NullPointerException success){} |
428 |
} |
429 |
|
430 |
/** Throws if handler is set to null */ |
431 |
public void testNullPointerException5() { |
432 |
try { |
433 |
RejectedExecutionHandler r = null; |
434 |
new ThreadPoolExecutor(1,2,SHORT_DELAY_MS, TimeUnit.MILLISECONDS,new ArrayBlockingQueue<Runnable>(10),r); |
435 |
shouldThrow(); |
436 |
} |
437 |
catch (NullPointerException success){} |
438 |
} |
439 |
|
440 |
|
441 |
/** Throws if corePoolSize argument is less than zero */ |
442 |
public void testConstructor16() { |
443 |
try { |
444 |
new ThreadPoolExecutor(-1,1,SHORT_DELAY_MS, TimeUnit.MILLISECONDS, new ArrayBlockingQueue<Runnable>(10),new MyThreadFactory(),new MyREHandler()); |
445 |
shouldThrow(); |
446 |
} |
447 |
catch (IllegalArgumentException success){} |
448 |
} |
449 |
|
450 |
/** Throws if maximumPoolSize is less than zero */ |
451 |
public void testConstructor17() { |
452 |
try { |
453 |
new ThreadPoolExecutor(1,-1,SHORT_DELAY_MS, TimeUnit.MILLISECONDS, new ArrayBlockingQueue<Runnable>(10),new MyThreadFactory(),new MyREHandler()); |
454 |
shouldThrow(); |
455 |
} |
456 |
catch (IllegalArgumentException success){} |
457 |
} |
458 |
|
459 |
/** Throws if maximumPoolSize is equal to zero */ |
460 |
public void testConstructor18() { |
461 |
try { |
462 |
new ThreadPoolExecutor(1,0,SHORT_DELAY_MS, TimeUnit.MILLISECONDS, new ArrayBlockingQueue<Runnable>(10),new MyThreadFactory(),new MyREHandler()); |
463 |
shouldThrow(); |
464 |
} |
465 |
catch (IllegalArgumentException success){} |
466 |
} |
467 |
|
468 |
/** Throws if keepAliveTime is less than zero */ |
469 |
public void testConstructor19() { |
470 |
try { |
471 |
new ThreadPoolExecutor(1,2,-1L,TimeUnit.MILLISECONDS, new ArrayBlockingQueue<Runnable>(10),new MyThreadFactory(),new MyREHandler()); |
472 |
shouldThrow(); |
473 |
} |
474 |
catch (IllegalArgumentException success){} |
475 |
} |
476 |
|
477 |
/** Throws if corePoolSize is greater than the maximumPoolSize */ |
478 |
public void testConstructor20() { |
479 |
try { |
480 |
new ThreadPoolExecutor(2,1,SHORT_DELAY_MS, TimeUnit.MILLISECONDS, new ArrayBlockingQueue<Runnable>(10),new MyThreadFactory(),new MyREHandler()); |
481 |
shouldThrow(); |
482 |
} |
483 |
catch (IllegalArgumentException success){} |
484 |
} |
485 |
|
486 |
/** Throws if workQueue is set to null */ |
487 |
public void testNullPointerException6() { |
488 |
try { |
489 |
new ThreadPoolExecutor(1,2,SHORT_DELAY_MS, TimeUnit.MILLISECONDS,null,new MyThreadFactory(),new MyREHandler()); |
490 |
shouldThrow(); |
491 |
} |
492 |
catch (NullPointerException success){} |
493 |
} |
494 |
|
495 |
/** Throws if handler is set to null */ |
496 |
public void testNullPointerException7() { |
497 |
try { |
498 |
RejectedExecutionHandler r = null; |
499 |
new ThreadPoolExecutor(1,2,SHORT_DELAY_MS, TimeUnit.MILLISECONDS,new ArrayBlockingQueue<Runnable>(10),new MyThreadFactory(),r); |
500 |
shouldThrow(); |
501 |
} |
502 |
catch (NullPointerException success){} |
503 |
} |
504 |
|
505 |
/** Throws if ThreadFactory is set top null */ |
506 |
public void testNullPointerException8() { |
507 |
try { |
508 |
ThreadFactory f = null; |
509 |
new ThreadPoolExecutor(1,2,SHORT_DELAY_MS, TimeUnit.MILLISECONDS,new ArrayBlockingQueue<Runnable>(10),f,new MyREHandler()); |
510 |
shouldThrow(); |
511 |
} |
512 |
catch (NullPointerException successdn8){} |
513 |
} |
514 |
|
515 |
|
516 |
/** |
517 |
* execute will throw RejectedExcutionException |
518 |
* ThreadPoolExecutor will throw one when more runnables are |
519 |
* executed then will fit in the Queue. |
520 |
*/ |
521 |
public void testRejectedExecutionException() { |
522 |
ThreadPoolExecutor tpe = null; |
523 |
try { |
524 |
tpe = new ThreadPoolExecutor(1,1,SHORT_DELAY_MS, TimeUnit.MILLISECONDS,new ArrayBlockingQueue<Runnable>(1)); |
525 |
} catch(Exception e){} |
526 |
tpe.shutdown(); |
527 |
try { |
528 |
tpe.execute(new NoOpRunnable()); |
529 |
shouldThrow(); |
530 |
} catch(RejectedExecutionException success){} |
531 |
|
532 |
joinPool(tpe); |
533 |
} |
534 |
|
535 |
/** |
536 |
* setCorePoolSize will throw IllegalArgumentException |
537 |
* when given a negative |
538 |
*/ |
539 |
public void testCorePoolSizeIllegalArgumentException() { |
540 |
ThreadPoolExecutor tpe = null; |
541 |
try { |
542 |
tpe = new ThreadPoolExecutor(1,2,SHORT_DELAY_MS, TimeUnit.MILLISECONDS,new ArrayBlockingQueue<Runnable>(10)); |
543 |
} catch(Exception e){} |
544 |
try { |
545 |
tpe.setCorePoolSize(-1); |
546 |
shouldThrow(); |
547 |
} catch(IllegalArgumentException success){ |
548 |
} finally { |
549 |
tpe.shutdown(); |
550 |
} |
551 |
joinPool(tpe); |
552 |
} |
553 |
|
554 |
|
555 |
/** |
556 |
* setMaximumPoolSize(int) will throw IllegalArgumentException |
557 |
* if given a value less the it's actual core pool size |
558 |
*/ |
559 |
public void testMaximumPoolSizeIllegalArgumentException() { |
560 |
ThreadPoolExecutor tpe = null; |
561 |
try { |
562 |
tpe = new ThreadPoolExecutor(2,3,SHORT_DELAY_MS, TimeUnit.MILLISECONDS,new ArrayBlockingQueue<Runnable>(10)); |
563 |
} catch(Exception e){} |
564 |
try { |
565 |
tpe.setMaximumPoolSize(1); |
566 |
shouldThrow(); |
567 |
} catch(IllegalArgumentException success){ |
568 |
} finally { |
569 |
tpe.shutdown(); |
570 |
} |
571 |
joinPool(tpe); |
572 |
} |
573 |
|
574 |
/** |
575 |
* setMaximumPoolSize will throw IllegalArgumentException |
576 |
* if given a negative number |
577 |
*/ |
578 |
public void testMaximumPoolSizeIllegalArgumentException2() { |
579 |
ThreadPoolExecutor tpe = null; |
580 |
try { |
581 |
tpe = new ThreadPoolExecutor(2,3,SHORT_DELAY_MS, TimeUnit.MILLISECONDS,new ArrayBlockingQueue<Runnable>(10)); |
582 |
} catch(Exception e){} |
583 |
try { |
584 |
tpe.setMaximumPoolSize(-1); |
585 |
shouldThrow(); |
586 |
} catch(IllegalArgumentException success){ |
587 |
} finally { |
588 |
tpe.shutdown(); |
589 |
} |
590 |
joinPool(tpe); |
591 |
} |
592 |
|
593 |
|
594 |
/** |
595 |
* setKeepAliveTime will throw IllegalArgumentException |
596 |
* when given a negative value |
597 |
*/ |
598 |
public void testKeepAliveTimeIllegalArgumentException() { |
599 |
ThreadPoolExecutor tpe = null; |
600 |
try { |
601 |
tpe = new ThreadPoolExecutor(2,3,SHORT_DELAY_MS, TimeUnit.MILLISECONDS,new ArrayBlockingQueue<Runnable>(10)); |
602 |
} catch(Exception e){} |
603 |
|
604 |
try { |
605 |
tpe.setKeepAliveTime(-1,TimeUnit.MILLISECONDS); |
606 |
shouldThrow(); |
607 |
} catch(IllegalArgumentException success){ |
608 |
} finally { |
609 |
tpe.shutdown(); |
610 |
} |
611 |
joinPool(tpe); |
612 |
} |
613 |
|
614 |
} |