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import junit.framework.Test; |
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import junit.framework.TestSuite; |
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/** |
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* Tests of atomic class methods accepting lambdas introduced in JDK8. |
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*/ |
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public class Atomic8Test extends JSR166TestCase { |
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public static void main(String[] args) { |
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return new TestSuite(Atomic8Test.class); |
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} |
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|
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/* |
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* Tests of atomic class methods accepting lambdas |
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* introduced in JDK8. |
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*/ |
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|
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static long addLong17(long x) { return x + 17; } |
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static int addInt17(int x) { return x + 17; } |
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static Integer addInteger17(Integer x) { |
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return new Integer(x.intValue() + 17); |
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return x.intValue() + 17; |
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} |
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static Integer sumInteger(Integer x, Integer y) { |
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return new Integer(x.intValue() + y.intValue()); |
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return x.intValue() + y.intValue(); |
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} |
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volatile long aLongField; |
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volatile int anIntField; |
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volatile Integer anIntegerField; |
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|
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AtomicLongFieldUpdater aLongFieldUpdater() { |
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AtomicLongFieldUpdater<Atomic8Test> aLongFieldUpdater() { |
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return AtomicLongFieldUpdater.newUpdater |
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(Atomic8Test.class, "aLongField"); |
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} |
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AtomicIntegerFieldUpdater anIntFieldUpdater() { |
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AtomicIntegerFieldUpdater<Atomic8Test> anIntFieldUpdater() { |
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return AtomicIntegerFieldUpdater.newUpdater |
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(Atomic8Test.class, "anIntField"); |
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} |
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*/ |
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public void testReferenceGetAndUpdate() { |
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AtomicReference<Integer> a = new AtomicReference<>(one); |
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assertEquals(new Integer(1), a.getAndUpdate(Atomic8Test::addInteger17)); |
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assertEquals(new Integer(18), a.getAndUpdate(Atomic8Test::addInteger17)); |
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assertEquals(new Integer(35), a.get()); |
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assertEquals((Integer) 1, a.getAndUpdate(Atomic8Test::addInteger17)); |
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assertEquals((Integer) 18, a.getAndUpdate(Atomic8Test::addInteger17)); |
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assertEquals((Integer) 35, a.get()); |
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} |
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/** |
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*/ |
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public void testReferenceUpdateAndGet() { |
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AtomicReference<Integer> a = new AtomicReference<>(one); |
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assertEquals(new Integer(18), a.updateAndGet(Atomic8Test::addInteger17)); |
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assertEquals(new Integer(35), a.updateAndGet(Atomic8Test::addInteger17)); |
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assertEquals(new Integer(35), a.get()); |
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assertEquals((Integer) 18, a.updateAndGet(Atomic8Test::addInteger17)); |
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assertEquals((Integer) 35, a.updateAndGet(Atomic8Test::addInteger17)); |
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assertEquals((Integer) 35, a.get()); |
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} |
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/** |
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*/ |
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public void testReferenceGetAndAccumulate() { |
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AtomicReference<Integer> a = new AtomicReference<>(one); |
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assertEquals(new Integer(1), a.getAndAccumulate(2, Atomic8Test::sumInteger)); |
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assertEquals(new Integer(3), a.getAndAccumulate(3, Atomic8Test::sumInteger)); |
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assertEquals(new Integer(6), a.get()); |
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assertEquals((Integer) 1, a.getAndAccumulate(2, Atomic8Test::sumInteger)); |
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assertEquals((Integer) 3, a.getAndAccumulate(3, Atomic8Test::sumInteger)); |
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assertEquals((Integer) 6, a.get()); |
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} |
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/** |
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*/ |
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public void testReferenceAccumulateAndGet() { |
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AtomicReference<Integer> a = new AtomicReference<>(one); |
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assertEquals(new Integer(7), a.accumulateAndGet(6, Atomic8Test::sumInteger)); |
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assertEquals(new Integer(10), a.accumulateAndGet(3, Atomic8Test::sumInteger)); |
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assertEquals(new Integer(10), a.get()); |
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assertEquals((Integer) 7, a.accumulateAndGet(6, Atomic8Test::sumInteger)); |
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assertEquals((Integer) 10, a.accumulateAndGet(3, Atomic8Test::sumInteger)); |
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assertEquals((Integer) 10, a.get()); |
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} |
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/** |
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public void testReferenceArrayGetAndUpdate() { |
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AtomicReferenceArray<Integer> a = new AtomicReferenceArray<Integer>(1); |
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a.set(0, one); |
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assertEquals(new Integer(1), a.getAndUpdate(0, Atomic8Test::addInteger17)); |
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assertEquals(new Integer(18), a.getAndUpdate(0, Atomic8Test::addInteger17)); |
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assertEquals(new Integer(35), a.get(0)); |
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assertEquals((Integer) 1, a.getAndUpdate(0, Atomic8Test::addInteger17)); |
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assertEquals((Integer) 18, a.getAndUpdate(0, Atomic8Test::addInteger17)); |
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assertEquals((Integer) 35, a.get(0)); |
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} |
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/** |
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public void testReferenceArrayUpdateAndGet() { |
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AtomicReferenceArray<Integer> a = new AtomicReferenceArray<Integer>(1); |
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a.set(0, one); |
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assertEquals(new Integer(18), a.updateAndGet(0, Atomic8Test::addInteger17)); |
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assertEquals(new Integer(35), a.updateAndGet(0, Atomic8Test::addInteger17)); |
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assertEquals((Integer) 18, a.updateAndGet(0, Atomic8Test::addInteger17)); |
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assertEquals((Integer) 35, a.updateAndGet(0, Atomic8Test::addInteger17)); |
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} |
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/** |
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public void testReferenceArrayGetAndAccumulate() { |
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AtomicReferenceArray<Integer> a = new AtomicReferenceArray<Integer>(1); |
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a.set(0, one); |
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assertEquals(new Integer(1), a.getAndAccumulate(0, 2, Atomic8Test::sumInteger)); |
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assertEquals(new Integer(3), a.getAndAccumulate(0, 3, Atomic8Test::sumInteger)); |
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assertEquals(new Integer(6), a.get(0)); |
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assertEquals((Integer) 1, a.getAndAccumulate(0, 2, Atomic8Test::sumInteger)); |
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assertEquals((Integer) 3, a.getAndAccumulate(0, 3, Atomic8Test::sumInteger)); |
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assertEquals((Integer) 6, a.get(0)); |
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} |
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/** |
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public void testReferenceArrayAccumulateAndGet() { |
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AtomicReferenceArray<Integer> a = new AtomicReferenceArray<Integer>(1); |
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a.set(0, one); |
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assertEquals(new Integer(7), a.accumulateAndGet(0, 6, Atomic8Test::sumInteger)); |
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assertEquals(new Integer(10), a.accumulateAndGet(0, 3, Atomic8Test::sumInteger)); |
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assertEquals((Integer) 7, a.accumulateAndGet(0, 6, Atomic8Test::sumInteger)); |
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assertEquals((Integer) 10, a.accumulateAndGet(0, 3, Atomic8Test::sumInteger)); |
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} |
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/** |
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public void testReferenceFieldUpdaterGetAndUpdate() { |
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AtomicReferenceFieldUpdater<Atomic8Test,Integer> a = anIntegerFieldUpdater(); |
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a.set(this, one); |
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assertEquals(new Integer(1), a.getAndUpdate(this, Atomic8Test::addInteger17)); |
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assertEquals(new Integer(18), a.getAndUpdate(this, Atomic8Test::addInteger17)); |
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assertEquals(new Integer(35), a.get(this)); |
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assertEquals(new Integer(35), anIntegerField); |
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assertEquals((Integer) 1, a.getAndUpdate(this, Atomic8Test::addInteger17)); |
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assertEquals((Integer) 18, a.getAndUpdate(this, Atomic8Test::addInteger17)); |
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assertEquals((Integer) 35, a.get(this)); |
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assertEquals((Integer) 35, anIntegerField); |
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} |
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/** |
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public void testReferenceFieldUpdaterUpdateAndGet() { |
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AtomicReferenceFieldUpdater<Atomic8Test,Integer> a = anIntegerFieldUpdater(); |
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a.set(this, one); |
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assertEquals(new Integer(18), a.updateAndGet(this, Atomic8Test::addInteger17)); |
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assertEquals(new Integer(35), a.updateAndGet(this, Atomic8Test::addInteger17)); |
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assertEquals(new Integer(35), a.get(this)); |
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assertEquals(new Integer(35), anIntegerField); |
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assertEquals((Integer) 18, a.updateAndGet(this, Atomic8Test::addInteger17)); |
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assertEquals((Integer) 35, a.updateAndGet(this, Atomic8Test::addInteger17)); |
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assertEquals((Integer) 35, a.get(this)); |
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assertEquals((Integer) 35, anIntegerField); |
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} |
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/** |
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public void testReferenceFieldUpdaterGetAndAccumulate() { |
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AtomicReferenceFieldUpdater<Atomic8Test,Integer> a = anIntegerFieldUpdater(); |
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a.set(this, one); |
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assertEquals(new Integer(1), a.getAndAccumulate(this, 2, Atomic8Test::sumInteger)); |
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assertEquals(new Integer(3), a.getAndAccumulate(this, 3, Atomic8Test::sumInteger)); |
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assertEquals(new Integer(6), a.get(this)); |
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assertEquals(new Integer(6), anIntegerField); |
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assertEquals((Integer) 1, a.getAndAccumulate(this, 2, Atomic8Test::sumInteger)); |
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assertEquals((Integer) 3, a.getAndAccumulate(this, 3, Atomic8Test::sumInteger)); |
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assertEquals((Integer) 6, a.get(this)); |
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assertEquals((Integer) 6, anIntegerField); |
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} |
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/** |
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public void testReferenceFieldUpdaterAccumulateAndGet() { |
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AtomicReferenceFieldUpdater<Atomic8Test,Integer> a = anIntegerFieldUpdater(); |
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a.set(this, one); |
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assertEquals(new Integer(7), a.accumulateAndGet(this, 6, Atomic8Test::sumInteger)); |
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assertEquals(new Integer(10), a.accumulateAndGet(this, 3, Atomic8Test::sumInteger)); |
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assertEquals(new Integer(10), a.get(this)); |
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assertEquals(new Integer(10), anIntegerField); |
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assertEquals((Integer) 7, a.accumulateAndGet(this, 6, Atomic8Test::sumInteger)); |
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assertEquals((Integer) 10, a.accumulateAndGet(this, 3, Atomic8Test::sumInteger)); |
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assertEquals((Integer) 10, a.get(this)); |
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assertEquals((Integer) 10, anIntegerField); |
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} |
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/** |
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() -> aLongFieldUpdater().getAndUpdate(this, null), |
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() -> anIntFieldUpdater().getAndUpdate(this, null), |
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() -> anIntegerFieldUpdater().getAndUpdate(this, null), |
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////() -> aLongFieldUpdater().getAndUpdate(null, Atomic8Test::addLong17), |
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////() -> anIntFieldUpdater().getAndUpdate(null, Atomic8Test::addInt17), |
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////() -> anIntegerFieldUpdater().getAndUpdate(null, Atomic8Test::addInteger17), |
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}; |
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assertThrows(NullPointerException.class, throwingActions); |
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} |
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assertThrows(NullPointerException.class, throwingActions); |
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} |
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/** |
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* Object arguments for parameters of type T that are not |
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* instances of the class passed to the newUpdater call will |
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* result in a ClassCastException being thrown. |
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*/ |
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public void testFieldUpdaters_ClassCastException() { |
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// Use raw types to allow passing wrong object type, provoking CCE |
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final AtomicLongFieldUpdater longUpdater = aLongFieldUpdater(); |
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final AtomicIntegerFieldUpdater intUpdater = anIntFieldUpdater(); |
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final AtomicReferenceFieldUpdater refUpdater = anIntegerFieldUpdater(); |
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final Object obj = new Object(); |
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for (Object x : new Object[]{ new Object(), null }) { |
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Runnable[] throwingActions = { |
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() -> longUpdater.get(x), |
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() -> intUpdater.get(x), |
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() -> refUpdater.get(x), |
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|
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() -> longUpdater.set(x, 17L), |
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() -> intUpdater.set(x, 17), |
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() -> refUpdater.set(x, (Integer) 17), |
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|
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() -> longUpdater.addAndGet(x, 17L), |
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() -> intUpdater.addAndGet(x, 17), |
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|
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() -> longUpdater.getAndUpdate(x, y -> y), |
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() -> intUpdater.getAndUpdate(x, y -> y), |
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() -> refUpdater.getAndUpdate(x, y -> y), |
591 |
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|
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() -> longUpdater.compareAndSet(x, 17L, 42L), |
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() -> intUpdater.compareAndSet(x, 17, 42), |
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() -> refUpdater.compareAndSet(x, (Integer) 17, (Integer) 42), |
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}; |
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assertThrows(ClassCastException.class, throwingActions); |
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} |
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} |
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|
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} |