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/* |
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* Written by Doug Lea and Martin Buchholz with assistance from |
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* members of JCP JSR-166 Expert Group and released to the public |
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* domain, as explained at |
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* http://creativecommons.org/publicdomain/zero/1.0/ |
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*/ |
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|
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import java.util.concurrent.atomic.AtomicInteger; |
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import java.util.concurrent.atomic.AtomicIntegerArray; |
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import java.util.concurrent.atomic.AtomicIntegerFieldUpdater; |
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import java.util.concurrent.atomic.AtomicLong; |
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import java.util.concurrent.atomic.AtomicLongArray; |
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import java.util.concurrent.atomic.AtomicLongFieldUpdater; |
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import java.util.concurrent.atomic.AtomicReference; |
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import java.util.concurrent.atomic.AtomicReferenceArray; |
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import java.util.concurrent.atomic.AtomicReferenceFieldUpdater; |
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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 Atomic8Test extends JSR166TestCase { |
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|
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public static void main(String[] args) { |
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main(suite(), args); |
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} |
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public static Test suite() { |
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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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} |
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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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} |
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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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return AtomicLongFieldUpdater.newUpdater |
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(Atomic8Test.class, "aLongField"); |
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} |
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|
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AtomicIntegerFieldUpdater 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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AtomicReferenceFieldUpdater<Atomic8Test,Integer> anIntegerFieldUpdater() { |
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return AtomicReferenceFieldUpdater.newUpdater |
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(Atomic8Test.class, Integer.class, "anIntegerField"); |
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} |
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|
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/** |
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* AtomicLong getAndUpdate returns previous value and updates |
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* result of supplied function |
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*/ |
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public void testLongGetAndUpdate() { |
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AtomicLong a = new AtomicLong(1L); |
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assertEquals(1L, a.getAndUpdate(Atomic8Test::addLong17)); |
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assertEquals(18L, a.getAndUpdate(Atomic8Test::addLong17)); |
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assertEquals(35L, a.get()); |
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} |
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|
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/** |
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* AtomicLong updateAndGet updates with supplied function and |
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* returns result. |
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*/ |
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public void testLongUpdateAndGet() { |
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AtomicLong a = new AtomicLong(1L); |
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assertEquals(18L, a.updateAndGet(Atomic8Test::addLong17)); |
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assertEquals(35L, a.updateAndGet(Atomic8Test::addLong17)); |
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} |
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|
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/** |
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* AtomicLong getAndAccumulate returns previous value and updates |
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* with supplied function. |
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*/ |
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public void testLongGetAndAccumulate() { |
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AtomicLong a = new AtomicLong(1L); |
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assertEquals(1L, a.getAndAccumulate(2L, Long::sum)); |
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assertEquals(3L, a.getAndAccumulate(3L, Long::sum)); |
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assertEquals(6L, a.get()); |
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} |
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|
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/** |
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* AtomicLong accumulateAndGet updates with supplied function and |
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* returns result. |
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*/ |
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public void testLongAccumulateAndGet() { |
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AtomicLong a = new AtomicLong(1L); |
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assertEquals(7L, a.accumulateAndGet(6L, Long::sum)); |
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assertEquals(10L, a.accumulateAndGet(3L, Long::sum)); |
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assertEquals(10L, a.get()); |
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} |
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|
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/** |
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* AtomicInteger getAndUpdate returns previous value and updates |
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* result of supplied function |
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*/ |
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public void testIntGetAndUpdate() { |
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AtomicInteger a = new AtomicInteger(1); |
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assertEquals(1, a.getAndUpdate(Atomic8Test::addInt17)); |
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assertEquals(18, a.getAndUpdate(Atomic8Test::addInt17)); |
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assertEquals(35, a.get()); |
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} |
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|
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/** |
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* AtomicInteger updateAndGet updates with supplied function and |
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* returns result. |
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*/ |
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public void testIntUpdateAndGet() { |
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AtomicInteger a = new AtomicInteger(1); |
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assertEquals(18, a.updateAndGet(Atomic8Test::addInt17)); |
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assertEquals(35, a.updateAndGet(Atomic8Test::addInt17)); |
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assertEquals(35, a.get()); |
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} |
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|
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/** |
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* AtomicInteger getAndAccumulate returns previous value and updates |
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* with supplied function. |
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*/ |
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public void testIntGetAndAccumulate() { |
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AtomicInteger a = new AtomicInteger(1); |
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assertEquals(1, a.getAndAccumulate(2, Integer::sum)); |
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assertEquals(3, a.getAndAccumulate(3, Integer::sum)); |
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assertEquals(6, a.get()); |
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} |
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|
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/** |
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* AtomicInteger accumulateAndGet updates with supplied function and |
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* returns result. |
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*/ |
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public void testIntAccumulateAndGet() { |
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AtomicInteger a = new AtomicInteger(1); |
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assertEquals(7, a.accumulateAndGet(6, Integer::sum)); |
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assertEquals(10, a.accumulateAndGet(3, Integer::sum)); |
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assertEquals(10, a.get()); |
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} |
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|
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/** |
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* AtomicReference getAndUpdate returns previous value and updates |
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* result of supplied function |
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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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} |
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|
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/** |
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* AtomicReference updateAndGet updates with supplied function and |
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* returns result. |
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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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} |
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|
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/** |
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* AtomicReference getAndAccumulate returns previous value and updates |
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* with supplied function. |
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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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} |
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|
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/** |
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* AtomicReference accumulateAndGet updates with supplied function and |
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* returns result. |
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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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} |
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|
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/** |
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* AtomicLongArray getAndUpdate returns previous value and updates |
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* result of supplied function |
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*/ |
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public void testLongArrayGetAndUpdate() { |
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AtomicLongArray a = new AtomicLongArray(1); |
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a.set(0, 1); |
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assertEquals(1L, a.getAndUpdate(0, Atomic8Test::addLong17)); |
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assertEquals(18L, a.getAndUpdate(0, Atomic8Test::addLong17)); |
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assertEquals(35L, a.get(0)); |
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} |
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|
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/** |
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* AtomicLongArray updateAndGet updates with supplied function and |
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* returns result. |
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*/ |
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public void testLongArrayUpdateAndGet() { |
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AtomicLongArray a = new AtomicLongArray(1); |
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a.set(0, 1); |
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assertEquals(18L, a.updateAndGet(0, Atomic8Test::addLong17)); |
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assertEquals(35L, a.updateAndGet(0, Atomic8Test::addLong17)); |
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assertEquals(35L, a.get(0)); |
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} |
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|
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/** |
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* AtomicLongArray getAndAccumulate returns previous value and updates |
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* with supplied function. |
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*/ |
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public void testLongArrayGetAndAccumulate() { |
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AtomicLongArray a = new AtomicLongArray(1); |
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a.set(0, 1); |
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assertEquals(1L, a.getAndAccumulate(0, 2L, Long::sum)); |
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assertEquals(3L, a.getAndAccumulate(0, 3L, Long::sum)); |
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assertEquals(6L, a.get(0)); |
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} |
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|
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/** |
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* AtomicLongArray accumulateAndGet updates with supplied function and |
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* returns result. |
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*/ |
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public void testLongArrayAccumulateAndGet() { |
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AtomicLongArray a = new AtomicLongArray(1); |
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a.set(0, 1); |
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assertEquals(7L, a.accumulateAndGet(0, 6L, Long::sum)); |
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assertEquals(10L, a.accumulateAndGet(0, 3L, Long::sum)); |
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assertEquals(10L, a.get(0)); |
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} |
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|
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/** |
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* AtomicIntegerArray getAndUpdate returns previous value and updates |
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* result of supplied function |
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*/ |
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public void testIntArrayGetAndUpdate() { |
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AtomicIntegerArray a = new AtomicIntegerArray(1); |
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a.set(0, 1); |
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assertEquals(1, a.getAndUpdate(0, Atomic8Test::addInt17)); |
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assertEquals(18, a.getAndUpdate(0, Atomic8Test::addInt17)); |
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assertEquals(35, a.get(0)); |
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} |
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|
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/** |
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* AtomicIntegerArray updateAndGet updates with supplied function and |
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* returns result. |
257 |
*/ |
258 |
public void testIntArrayUpdateAndGet() { |
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AtomicIntegerArray a = new AtomicIntegerArray(1); |
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a.set(0, 1); |
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assertEquals(18, a.updateAndGet(0, Atomic8Test::addInt17)); |
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assertEquals(35, a.updateAndGet(0, Atomic8Test::addInt17)); |
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assertEquals(35, a.get(0)); |
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} |
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|
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/** |
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* AtomicIntegerArray getAndAccumulate returns previous value and updates |
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* with supplied function. |
269 |
*/ |
270 |
public void testIntArrayGetAndAccumulate() { |
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AtomicIntegerArray a = new AtomicIntegerArray(1); |
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a.set(0, 1); |
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assertEquals(1, a.getAndAccumulate(0, 2, Integer::sum)); |
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assertEquals(3, a.getAndAccumulate(0, 3, Integer::sum)); |
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assertEquals(6, a.get(0)); |
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} |
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|
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/** |
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* AtomicIntegerArray accumulateAndGet updates with supplied function and |
280 |
* returns result. |
281 |
*/ |
282 |
public void testIntArrayAccumulateAndGet() { |
283 |
AtomicIntegerArray a = new AtomicIntegerArray(1); |
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a.set(0, 1); |
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assertEquals(7, a.accumulateAndGet(0, 6, Integer::sum)); |
286 |
assertEquals(10, a.accumulateAndGet(0, 3, Integer::sum)); |
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} |
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|
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/** |
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* AtomicReferenceArray getAndUpdate returns previous value and updates |
291 |
* result of supplied function |
292 |
*/ |
293 |
public void testReferenceArrayGetAndUpdate() { |
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AtomicReferenceArray<Integer> a = new AtomicReferenceArray<Integer>(1); |
295 |
a.set(0, one); |
296 |
assertEquals(new Integer(1), a.getAndUpdate(0, Atomic8Test::addInteger17)); |
297 |
assertEquals(new Integer(18), a.getAndUpdate(0, Atomic8Test::addInteger17)); |
298 |
assertEquals(new Integer(35), a.get(0)); |
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} |
300 |
|
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/** |
302 |
* AtomicReferenceArray updateAndGet updates with supplied function and |
303 |
* returns result. |
304 |
*/ |
305 |
public void testReferenceArrayUpdateAndGet() { |
306 |
AtomicReferenceArray<Integer> a = new AtomicReferenceArray<Integer>(1); |
307 |
a.set(0, one); |
308 |
assertEquals(new Integer(18), a.updateAndGet(0, Atomic8Test::addInteger17)); |
309 |
assertEquals(new Integer(35), a.updateAndGet(0, Atomic8Test::addInteger17)); |
310 |
} |
311 |
|
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/** |
313 |
* AtomicReferenceArray getAndAccumulate returns previous value and updates |
314 |
* with supplied function. |
315 |
*/ |
316 |
public void testReferenceArrayGetAndAccumulate() { |
317 |
AtomicReferenceArray<Integer> a = new AtomicReferenceArray<Integer>(1); |
318 |
a.set(0, one); |
319 |
assertEquals(new Integer(1), a.getAndAccumulate(0, 2, Atomic8Test::sumInteger)); |
320 |
assertEquals(new Integer(3), a.getAndAccumulate(0, 3, Atomic8Test::sumInteger)); |
321 |
assertEquals(new Integer(6), a.get(0)); |
322 |
} |
323 |
|
324 |
/** |
325 |
* AtomicReferenceArray accumulateAndGet updates with supplied function and |
326 |
* returns result. |
327 |
*/ |
328 |
public void testReferenceArrayAccumulateAndGet() { |
329 |
AtomicReferenceArray<Integer> a = new AtomicReferenceArray<Integer>(1); |
330 |
a.set(0, one); |
331 |
assertEquals(new Integer(7), a.accumulateAndGet(0, 6, Atomic8Test::sumInteger)); |
332 |
assertEquals(new Integer(10), a.accumulateAndGet(0, 3, Atomic8Test::sumInteger)); |
333 |
} |
334 |
|
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/** |
336 |
* AtomicLongFieldUpdater getAndUpdate returns previous value and updates |
337 |
* result of supplied function |
338 |
*/ |
339 |
public void testLongFieldUpdaterGetAndUpdate() { |
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AtomicLongFieldUpdater a = aLongFieldUpdater(); |
341 |
a.set(this, 1); |
342 |
assertEquals(1L, a.getAndUpdate(this, Atomic8Test::addLong17)); |
343 |
assertEquals(18L, a.getAndUpdate(this, Atomic8Test::addLong17)); |
344 |
assertEquals(35L, a.get(this)); |
345 |
assertEquals(35L, aLongField); |
346 |
} |
347 |
|
348 |
/** |
349 |
* AtomicLongFieldUpdater updateAndGet updates with supplied function and |
350 |
* returns result. |
351 |
*/ |
352 |
public void testLongFieldUpdaterUpdateAndGet() { |
353 |
AtomicLongFieldUpdater a = aLongFieldUpdater(); |
354 |
a.set(this, 1); |
355 |
assertEquals(18L, a.updateAndGet(this, Atomic8Test::addLong17)); |
356 |
assertEquals(35L, a.updateAndGet(this, Atomic8Test::addLong17)); |
357 |
assertEquals(35L, a.get(this)); |
358 |
assertEquals(35L, aLongField); |
359 |
} |
360 |
|
361 |
/** |
362 |
* AtomicLongFieldUpdater getAndAccumulate returns previous value |
363 |
* and updates with supplied function. |
364 |
*/ |
365 |
public void testLongFieldUpdaterGetAndAccumulate() { |
366 |
AtomicLongFieldUpdater a = aLongFieldUpdater(); |
367 |
a.set(this, 1); |
368 |
assertEquals(1L, a.getAndAccumulate(this, 2L, Long::sum)); |
369 |
assertEquals(3L, a.getAndAccumulate(this, 3L, Long::sum)); |
370 |
assertEquals(6L, a.get(this)); |
371 |
assertEquals(6L, aLongField); |
372 |
} |
373 |
|
374 |
/** |
375 |
* AtomicLongFieldUpdater accumulateAndGet updates with supplied |
376 |
* function and returns result. |
377 |
*/ |
378 |
public void testLongFieldUpdaterAccumulateAndGet() { |
379 |
AtomicLongFieldUpdater a = aLongFieldUpdater(); |
380 |
a.set(this, 1); |
381 |
assertEquals(7L, a.accumulateAndGet(this, 6L, Long::sum)); |
382 |
assertEquals(10L, a.accumulateAndGet(this, 3L, Long::sum)); |
383 |
assertEquals(10L, a.get(this)); |
384 |
assertEquals(10L, aLongField); |
385 |
} |
386 |
|
387 |
/** |
388 |
* AtomicIntegerFieldUpdater getAndUpdate returns previous value and updates |
389 |
* result of supplied function |
390 |
*/ |
391 |
public void testIntegerFieldUpdaterGetAndUpdate() { |
392 |
AtomicIntegerFieldUpdater a = anIntFieldUpdater(); |
393 |
a.set(this, 1); |
394 |
assertEquals(1, a.getAndUpdate(this, Atomic8Test::addInt17)); |
395 |
assertEquals(18, a.getAndUpdate(this, Atomic8Test::addInt17)); |
396 |
assertEquals(35, a.get(this)); |
397 |
assertEquals(35, anIntField); |
398 |
} |
399 |
|
400 |
/** |
401 |
* AtomicIntegerFieldUpdater updateAndGet updates with supplied function and |
402 |
* returns result. |
403 |
*/ |
404 |
public void testIntegerFieldUpdaterUpdateAndGet() { |
405 |
AtomicIntegerFieldUpdater a = anIntFieldUpdater(); |
406 |
a.set(this, 1); |
407 |
assertEquals(18, a.updateAndGet(this, Atomic8Test::addInt17)); |
408 |
assertEquals(35, a.updateAndGet(this, Atomic8Test::addInt17)); |
409 |
assertEquals(35, a.get(this)); |
410 |
assertEquals(35, anIntField); |
411 |
} |
412 |
|
413 |
/** |
414 |
* AtomicIntegerFieldUpdater getAndAccumulate returns previous value |
415 |
* and updates with supplied function. |
416 |
*/ |
417 |
public void testIntegerFieldUpdaterGetAndAccumulate() { |
418 |
AtomicIntegerFieldUpdater a = anIntFieldUpdater(); |
419 |
a.set(this, 1); |
420 |
assertEquals(1, a.getAndAccumulate(this, 2, Integer::sum)); |
421 |
assertEquals(3, a.getAndAccumulate(this, 3, Integer::sum)); |
422 |
assertEquals(6, a.get(this)); |
423 |
assertEquals(6, anIntField); |
424 |
} |
425 |
|
426 |
/** |
427 |
* AtomicIntegerFieldUpdater accumulateAndGet updates with supplied |
428 |
* function and returns result. |
429 |
*/ |
430 |
public void testIntegerFieldUpdaterAccumulateAndGet() { |
431 |
AtomicIntegerFieldUpdater a = anIntFieldUpdater(); |
432 |
a.set(this, 1); |
433 |
assertEquals(7, a.accumulateAndGet(this, 6, Integer::sum)); |
434 |
assertEquals(10, a.accumulateAndGet(this, 3, Integer::sum)); |
435 |
assertEquals(10, a.get(this)); |
436 |
assertEquals(10, anIntField); |
437 |
} |
438 |
|
439 |
/** |
440 |
* AtomicReferenceFieldUpdater getAndUpdate returns previous value |
441 |
* and updates result of supplied function |
442 |
*/ |
443 |
public void testReferenceFieldUpdaterGetAndUpdate() { |
444 |
AtomicReferenceFieldUpdater<Atomic8Test,Integer> a = anIntegerFieldUpdater(); |
445 |
a.set(this, one); |
446 |
assertEquals(new Integer(1), a.getAndUpdate(this, Atomic8Test::addInteger17)); |
447 |
assertEquals(new Integer(18), a.getAndUpdate(this, Atomic8Test::addInteger17)); |
448 |
assertEquals(new Integer(35), a.get(this)); |
449 |
assertEquals(new Integer(35), anIntegerField); |
450 |
} |
451 |
|
452 |
/** |
453 |
* AtomicReferenceFieldUpdater updateAndGet updates with supplied |
454 |
* function and returns result. |
455 |
*/ |
456 |
public void testReferenceFieldUpdaterUpdateAndGet() { |
457 |
AtomicReferenceFieldUpdater<Atomic8Test,Integer> a = anIntegerFieldUpdater(); |
458 |
a.set(this, one); |
459 |
assertEquals(new Integer(18), a.updateAndGet(this, Atomic8Test::addInteger17)); |
460 |
assertEquals(new Integer(35), a.updateAndGet(this, Atomic8Test::addInteger17)); |
461 |
assertEquals(new Integer(35), a.get(this)); |
462 |
assertEquals(new Integer(35), anIntegerField); |
463 |
} |
464 |
|
465 |
/** |
466 |
* AtomicReferenceFieldUpdater returns previous value and updates |
467 |
* with supplied function. |
468 |
*/ |
469 |
public void testReferenceFieldUpdaterGetAndAccumulate() { |
470 |
AtomicReferenceFieldUpdater<Atomic8Test,Integer> a = anIntegerFieldUpdater(); |
471 |
a.set(this, one); |
472 |
assertEquals(new Integer(1), a.getAndAccumulate(this, 2, Atomic8Test::sumInteger)); |
473 |
assertEquals(new Integer(3), a.getAndAccumulate(this, 3, Atomic8Test::sumInteger)); |
474 |
assertEquals(new Integer(6), a.get(this)); |
475 |
assertEquals(new Integer(6), anIntegerField); |
476 |
} |
477 |
|
478 |
/** |
479 |
* AtomicReferenceFieldUpdater accumulateAndGet updates with |
480 |
* supplied function and returns result. |
481 |
*/ |
482 |
public void testReferenceFieldUpdaterAccumulateAndGet() { |
483 |
AtomicReferenceFieldUpdater<Atomic8Test,Integer> a = anIntegerFieldUpdater(); |
484 |
a.set(this, one); |
485 |
assertEquals(new Integer(7), a.accumulateAndGet(this, 6, Atomic8Test::sumInteger)); |
486 |
assertEquals(new Integer(10), a.accumulateAndGet(this, 3, Atomic8Test::sumInteger)); |
487 |
assertEquals(new Integer(10), a.get(this)); |
488 |
assertEquals(new Integer(10), anIntegerField); |
489 |
} |
490 |
|
491 |
/** |
492 |
* All Atomic getAndUpdate methods throw NullPointerException on |
493 |
* null function argument |
494 |
*/ |
495 |
public void testGetAndUpdateNPE() { |
496 |
Runnable[] throwingActions = { |
497 |
() -> new AtomicLong().getAndUpdate(null), |
498 |
() -> new AtomicInteger().getAndUpdate(null), |
499 |
() -> new AtomicReference().getAndUpdate(null), |
500 |
() -> new AtomicLongArray(1).getAndUpdate(0, null), |
501 |
() -> new AtomicIntegerArray(1).getAndUpdate(0, null), |
502 |
() -> new AtomicReferenceArray(1).getAndUpdate(0, null), |
503 |
() -> aLongFieldUpdater().getAndUpdate(this, null), |
504 |
() -> anIntFieldUpdater().getAndUpdate(this, null), |
505 |
() -> anIntegerFieldUpdater().getAndUpdate(this, null), |
506 |
////() -> aLongFieldUpdater().getAndUpdate(null, Atomic8Test::addLong17), |
507 |
////() -> anIntFieldUpdater().getAndUpdate(null, Atomic8Test::addInt17), |
508 |
////() -> anIntegerFieldUpdater().getAndUpdate(null, Atomic8Test::addInteger17), |
509 |
}; |
510 |
assertThrows(NullPointerException.class, throwingActions); |
511 |
} |
512 |
|
513 |
/** |
514 |
* All Atomic updateAndGet methods throw NullPointerException on null function argument |
515 |
*/ |
516 |
public void testUpdateAndGetNPE() { |
517 |
Runnable[] throwingActions = { |
518 |
() -> new AtomicLong().updateAndGet(null), |
519 |
() -> new AtomicInteger().updateAndGet(null), |
520 |
() -> new AtomicReference().updateAndGet(null), |
521 |
() -> new AtomicLongArray(1).updateAndGet(0, null), |
522 |
() -> new AtomicIntegerArray(1).updateAndGet(0, null), |
523 |
() -> new AtomicReferenceArray(1).updateAndGet(0, null), |
524 |
() -> aLongFieldUpdater().updateAndGet(this, null), |
525 |
() -> anIntFieldUpdater().updateAndGet(this, null), |
526 |
() -> anIntegerFieldUpdater().updateAndGet(this, null), |
527 |
}; |
528 |
assertThrows(NullPointerException.class, throwingActions); |
529 |
} |
530 |
|
531 |
/** |
532 |
* All Atomic getAndAccumulate methods throw NullPointerException |
533 |
* on null function argument |
534 |
*/ |
535 |
public void testGetAndAccumulateNPE() { |
536 |
Runnable[] throwingActions = { |
537 |
() -> new AtomicLong().getAndAccumulate(1L, null), |
538 |
() -> new AtomicInteger().getAndAccumulate(1, null), |
539 |
() -> new AtomicReference().getAndAccumulate(one, null), |
540 |
() -> new AtomicLongArray(1).getAndAccumulate(0, 1L, null), |
541 |
() -> new AtomicIntegerArray(1).getAndAccumulate(0, 1, null), |
542 |
() -> new AtomicReferenceArray(1).getAndAccumulate(0, one, null), |
543 |
() -> aLongFieldUpdater().getAndAccumulate(this, 1L, null), |
544 |
() -> anIntFieldUpdater().getAndAccumulate(this, 1, null), |
545 |
() -> anIntegerFieldUpdater().getAndAccumulate(this, one, null), |
546 |
}; |
547 |
assertThrows(NullPointerException.class, throwingActions); |
548 |
} |
549 |
|
550 |
/** |
551 |
* All Atomic accumulateAndGet methods throw NullPointerException |
552 |
* on null function argument |
553 |
*/ |
554 |
public void testAccumulateAndGetNPE() { |
555 |
Runnable[] throwingActions = { |
556 |
() -> new AtomicLong().accumulateAndGet(1L, null), |
557 |
() -> new AtomicInteger().accumulateAndGet(1, null), |
558 |
() -> new AtomicReference().accumulateAndGet(one, null), |
559 |
() -> new AtomicLongArray(1).accumulateAndGet(0, 1L, null), |
560 |
() -> new AtomicIntegerArray(1).accumulateAndGet(0, 1, null), |
561 |
() -> new AtomicReferenceArray(1).accumulateAndGet(0, one, null), |
562 |
() -> aLongFieldUpdater().accumulateAndGet(this, 1L, null), |
563 |
() -> anIntFieldUpdater().accumulateAndGet(this, 1, null), |
564 |
() -> anIntegerFieldUpdater().accumulateAndGet(this, one, null), |
565 |
}; |
566 |
assertThrows(NullPointerException.class, throwingActions); |
567 |
} |
568 |
|
569 |
} |