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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 junit.framework.*; |
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import java.util.*; |
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import java.util.concurrent.*; |
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import java.util.concurrent.atomic.*; |
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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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junit.textui.TestRunner.run(suite()); |
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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<Integer>(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<Integer>(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<Integer>(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<Integer>(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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/** |
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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. |
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*/ |
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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. |
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*/ |
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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 |
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* returns result. |
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*/ |
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public void testIntArrayAccumulateAndGet() { |
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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)); |
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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 |
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* result of supplied function |
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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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} |
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|
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/** |
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* AtomicReferenceArray updateAndGet updates with supplied function and |
296 |
* returns result. |
297 |
*/ |
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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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} |
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|
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/** |
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* AtomicReferenceArray getAndAccumulate returns previous value and updates |
307 |
* with supplied function. |
308 |
*/ |
309 |
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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} |
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|
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/** |
318 |
* AtomicReferenceArray accumulateAndGet updates with supplied function and |
319 |
* returns result. |
320 |
*/ |
321 |
public void testReferenceArrayAccumulateAndGet() { |
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AtomicReferenceArray<Integer> a = new AtomicReferenceArray<Integer>(1); |
323 |
a.set(0, one); |
324 |
assertEquals(new Integer(7), a.accumulateAndGet(0, 6, Atomic8Test::sumInteger)); |
325 |
assertEquals(new Integer(10), a.accumulateAndGet(0, 3, Atomic8Test::sumInteger)); |
326 |
} |
327 |
|
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/** |
329 |
* AtomicLongFieldUpdater getAndUpdate returns previous value and updates |
330 |
* result of supplied function |
331 |
*/ |
332 |
public void testLongFieldUpdaterGetAndUpdate() { |
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AtomicLongFieldUpdater a = aLongFieldUpdater(); |
334 |
a.set(this, 1); |
335 |
assertEquals(1L, a.getAndUpdate(this, Atomic8Test::addLong17)); |
336 |
assertEquals(18L, a.getAndUpdate(this, Atomic8Test::addLong17)); |
337 |
assertEquals(35L, a.get(this)); |
338 |
assertEquals(35L, aLongField); |
339 |
} |
340 |
|
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/** |
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* AtomicLongFieldUpdater updateAndGet updates with supplied function and |
343 |
* returns result. |
344 |
*/ |
345 |
public void testLongFieldUpdaterUpdateAndGet() { |
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AtomicLongFieldUpdater a = aLongFieldUpdater(); |
347 |
a.set(this, 1); |
348 |
assertEquals(18L, a.updateAndGet(this, Atomic8Test::addLong17)); |
349 |
assertEquals(35L, a.updateAndGet(this, Atomic8Test::addLong17)); |
350 |
assertEquals(35L, a.get(this)); |
351 |
assertEquals(35L, aLongField); |
352 |
} |
353 |
|
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/** |
355 |
* AtomicLongFieldUpdater getAndAccumulate returns previous value |
356 |
* and updates with supplied function. |
357 |
*/ |
358 |
public void testLongFieldUpdaterGetAndAccumulate() { |
359 |
AtomicLongFieldUpdater a = aLongFieldUpdater(); |
360 |
a.set(this, 1); |
361 |
assertEquals(1L, a.getAndAccumulate(this, 2L, Long::sum)); |
362 |
assertEquals(3L, a.getAndAccumulate(this, 3L, Long::sum)); |
363 |
assertEquals(6L, a.get(this)); |
364 |
assertEquals(6L, aLongField); |
365 |
} |
366 |
|
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/** |
368 |
* AtomicLongFieldUpdater accumulateAndGet updates with supplied |
369 |
* function and returns result. |
370 |
*/ |
371 |
public void testLongFieldUpdaterAccumulateAndGet() { |
372 |
AtomicLongFieldUpdater a = aLongFieldUpdater(); |
373 |
a.set(this, 1); |
374 |
assertEquals(7L, a.accumulateAndGet(this, 6L, Long::sum)); |
375 |
assertEquals(10L, a.accumulateAndGet(this, 3L, Long::sum)); |
376 |
assertEquals(10L, a.get(this)); |
377 |
assertEquals(10L, aLongField); |
378 |
} |
379 |
|
380 |
/** |
381 |
* AtomicIntegerFieldUpdater getAndUpdate returns previous value and updates |
382 |
* result of supplied function |
383 |
*/ |
384 |
public void testIntegerFieldUpdaterGetAndUpdate() { |
385 |
AtomicIntegerFieldUpdater a = anIntFieldUpdater(); |
386 |
a.set(this, 1); |
387 |
assertEquals(1, a.getAndUpdate(this, Atomic8Test::addInt17)); |
388 |
assertEquals(18, a.getAndUpdate(this, Atomic8Test::addInt17)); |
389 |
assertEquals(35, a.get(this)); |
390 |
assertEquals(35, anIntField); |
391 |
} |
392 |
|
393 |
/** |
394 |
* AtomicIntegerFieldUpdater updateAndGet updates with supplied function and |
395 |
* returns result. |
396 |
*/ |
397 |
public void testIntegerFieldUpdaterUpdateAndGet() { |
398 |
AtomicIntegerFieldUpdater a = anIntFieldUpdater(); |
399 |
a.set(this, 1); |
400 |
assertEquals(18, a.updateAndGet(this, Atomic8Test::addInt17)); |
401 |
assertEquals(35, a.updateAndGet(this, Atomic8Test::addInt17)); |
402 |
assertEquals(35, a.get(this)); |
403 |
assertEquals(35, anIntField); |
404 |
} |
405 |
|
406 |
/** |
407 |
* AtomicIntegerFieldUpdater getAndAccumulate returns previous value |
408 |
* and updates with supplied function. |
409 |
*/ |
410 |
public void testIntegerFieldUpdaterGetAndAccumulate() { |
411 |
AtomicIntegerFieldUpdater a = anIntFieldUpdater(); |
412 |
a.set(this, 1); |
413 |
assertEquals(1, a.getAndAccumulate(this, 2, Integer::sum)); |
414 |
assertEquals(3, a.getAndAccumulate(this, 3, Integer::sum)); |
415 |
assertEquals(6, a.get(this)); |
416 |
assertEquals(6, anIntField); |
417 |
} |
418 |
|
419 |
/** |
420 |
* AtomicIntegerFieldUpdater accumulateAndGet updates with supplied |
421 |
* function and returns result. |
422 |
*/ |
423 |
public void testIntegerFieldUpdaterAccumulateAndGet() { |
424 |
AtomicIntegerFieldUpdater a = anIntFieldUpdater(); |
425 |
a.set(this, 1); |
426 |
assertEquals(7, a.accumulateAndGet(this, 6, Integer::sum)); |
427 |
assertEquals(10, a.accumulateAndGet(this, 3, Integer::sum)); |
428 |
assertEquals(10, a.get(this)); |
429 |
assertEquals(10, anIntField); |
430 |
} |
431 |
|
432 |
|
433 |
/** |
434 |
* AtomicReferenceFieldUpdater getAndUpdate returns previous value |
435 |
* and updates result of supplied function |
436 |
*/ |
437 |
public void testReferenceFieldUpdaterGetAndUpdate() { |
438 |
AtomicReferenceFieldUpdater<Atomic8Test,Integer> a = anIntegerFieldUpdater(); |
439 |
a.set(this, one); |
440 |
assertEquals(new Integer(1), a.getAndUpdate(this, Atomic8Test::addInteger17)); |
441 |
assertEquals(new Integer(18), a.getAndUpdate(this, Atomic8Test::addInteger17)); |
442 |
assertEquals(new Integer(35), a.get(this)); |
443 |
assertEquals(new Integer(35), anIntegerField); |
444 |
} |
445 |
|
446 |
/** |
447 |
* AtomicReferenceFieldUpdater updateAndGet updates with supplied |
448 |
* function and returns result. |
449 |
*/ |
450 |
public void testReferenceFieldUpdaterUpdateAndGet() { |
451 |
AtomicReferenceFieldUpdater<Atomic8Test,Integer> a = anIntegerFieldUpdater(); |
452 |
a.set(this, one); |
453 |
assertEquals(new Integer(18), a.updateAndGet(this, Atomic8Test::addInteger17)); |
454 |
assertEquals(new Integer(35), a.updateAndGet(this, Atomic8Test::addInteger17)); |
455 |
assertEquals(new Integer(35), a.get(this)); |
456 |
assertEquals(new Integer(35), anIntegerField); |
457 |
} |
458 |
|
459 |
/** |
460 |
* AtomicReferenceFieldUpdater returns previous value and updates |
461 |
* with supplied function. |
462 |
*/ |
463 |
public void testReferenceFieldUpdaterGetAndAccumulate() { |
464 |
AtomicReferenceFieldUpdater<Atomic8Test,Integer> a = anIntegerFieldUpdater(); |
465 |
a.set(this, one); |
466 |
assertEquals(new Integer(1), a.getAndAccumulate(this, 2, Atomic8Test::sumInteger)); |
467 |
assertEquals(new Integer(3), a.getAndAccumulate(this, 3, Atomic8Test::sumInteger)); |
468 |
assertEquals(new Integer(6), a.get(this)); |
469 |
assertEquals(new Integer(6), anIntegerField); |
470 |
} |
471 |
|
472 |
/** |
473 |
* AtomicReferenceFieldUpdater accumulateAndGet updates with |
474 |
* supplied function and returns result. |
475 |
*/ |
476 |
public void testReferenceFieldUpdaterAccumulateAndGet() { |
477 |
AtomicReferenceFieldUpdater<Atomic8Test,Integer> a = anIntegerFieldUpdater(); |
478 |
a.set(this, one); |
479 |
assertEquals(new Integer(7), a.accumulateAndGet(this, 6, Atomic8Test::sumInteger)); |
480 |
assertEquals(new Integer(10), a.accumulateAndGet(this, 3, Atomic8Test::sumInteger)); |
481 |
assertEquals(new Integer(10), a.get(this)); |
482 |
assertEquals(new Integer(10), anIntegerField); |
483 |
} |
484 |
|
485 |
/** |
486 |
* All Atomic getAndUpdate methods throw NullPointerException on |
487 |
* null function argument |
488 |
*/ |
489 |
public void testGetAndUpdateNPE() { |
490 |
Runnable[] throwingActions = { |
491 |
() -> new AtomicLong().getAndUpdate(null), |
492 |
() -> new AtomicInteger().getAndUpdate(null), |
493 |
() -> new AtomicReference().getAndUpdate(null), |
494 |
() -> new AtomicLongArray(1).getAndUpdate(0, null), |
495 |
() -> new AtomicIntegerArray(1).getAndUpdate(0, null), |
496 |
() -> new AtomicReferenceArray(1).getAndUpdate(0, null), |
497 |
() -> aLongFieldUpdater().getAndUpdate(this, null), |
498 |
() -> anIntFieldUpdater().getAndUpdate(this, null), |
499 |
() -> anIntegerFieldUpdater().getAndUpdate(this, null), |
500 |
////() -> aLongFieldUpdater().getAndUpdate(null, Atomic8Test::addLong17), |
501 |
////() -> anIntFieldUpdater().getAndUpdate(null, Atomic8Test::addInt17), |
502 |
////() -> anIntegerFieldUpdater().getAndUpdate(null, Atomic8Test::addInteger17), |
503 |
}; |
504 |
assertThrows(NullPointerException.class, throwingActions); |
505 |
} |
506 |
|
507 |
/** |
508 |
* All Atomic updateAndGet methods throw NullPointerException on null function argument |
509 |
*/ |
510 |
public void testUpdateAndGetNPE() { |
511 |
Runnable[] throwingActions = { |
512 |
() -> new AtomicLong().updateAndGet(null), |
513 |
() -> new AtomicInteger().updateAndGet(null), |
514 |
() -> new AtomicReference().updateAndGet(null), |
515 |
() -> new AtomicLongArray(1).updateAndGet(0, null), |
516 |
() -> new AtomicIntegerArray(1).updateAndGet(0, null), |
517 |
() -> new AtomicReferenceArray(1).updateAndGet(0, null), |
518 |
() -> aLongFieldUpdater().updateAndGet(this, null), |
519 |
() -> anIntFieldUpdater().updateAndGet(this, null), |
520 |
() -> anIntegerFieldUpdater().updateAndGet(this, null), |
521 |
}; |
522 |
assertThrows(NullPointerException.class, throwingActions); |
523 |
} |
524 |
|
525 |
/** |
526 |
* All Atomic getAndAccumulate methods throw NullPointerException |
527 |
* on null function argument |
528 |
*/ |
529 |
public void testGetAndAccumulateNPE() { |
530 |
Runnable[] throwingActions = { |
531 |
() -> new AtomicLong().getAndAccumulate(1L, null), |
532 |
() -> new AtomicInteger().getAndAccumulate(1, null), |
533 |
() -> new AtomicReference().getAndAccumulate(one, null), |
534 |
() -> new AtomicLongArray(1).getAndAccumulate(0, 1L, null), |
535 |
() -> new AtomicIntegerArray(1).getAndAccumulate(0, 1, null), |
536 |
() -> new AtomicReferenceArray(1).getAndAccumulate(0, one, null), |
537 |
() -> aLongFieldUpdater().getAndAccumulate(this, 1L, null), |
538 |
() -> anIntFieldUpdater().getAndAccumulate(this, 1, null), |
539 |
() -> anIntegerFieldUpdater().getAndAccumulate(this, one, null), |
540 |
}; |
541 |
assertThrows(NullPointerException.class, throwingActions); |
542 |
} |
543 |
|
544 |
/** |
545 |
* All Atomic accumulateAndGet methods throw NullPointerException |
546 |
* on null function argument |
547 |
*/ |
548 |
public void testAccumulateAndGetNPE() { |
549 |
Runnable[] throwingActions = { |
550 |
() -> new AtomicLong().accumulateAndGet(1L, null), |
551 |
() -> new AtomicInteger().accumulateAndGet(1, null), |
552 |
() -> new AtomicReference().accumulateAndGet(one, null), |
553 |
() -> new AtomicLongArray(1).accumulateAndGet(0, 1L, null), |
554 |
() -> new AtomicIntegerArray(1).accumulateAndGet(0, 1, null), |
555 |
() -> new AtomicReferenceArray(1).accumulateAndGet(0, one, null), |
556 |
() -> aLongFieldUpdater().accumulateAndGet(this, 1L, null), |
557 |
() -> anIntFieldUpdater().accumulateAndGet(this, 1, null), |
558 |
() -> anIntegerFieldUpdater().accumulateAndGet(this, one, null), |
559 |
}; |
560 |
assertThrows(NullPointerException.class, throwingActions); |
561 |
} |
562 |
|
563 |
} |