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/* |
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* Written by Doug Lea with assistance from members of JCP JSR-166 |
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* Expert Group and released to the public domain, as explained at |
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* http://creativecommons.org/publicdomain/zero/1.0/ |
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* Other contributors include Andrew Wright, Jeffrey Hayes, |
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* Pat Fisher, Mike Judd. |
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*/ |
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|
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import static org.junit.Assert.assertEquals; |
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import static org.junit.Assert.assertNotNull; |
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import static org.junit.Assert.assertSame; |
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import static org.junit.Assert.assertTrue; |
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|
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import java.util.concurrent.atomic.AtomicIntegerFieldUpdater; |
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import java.util.concurrent.atomic.AtomicLongFieldUpdater; |
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import java.util.concurrent.atomic.AtomicReferenceFieldUpdater; |
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|
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/** |
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* This source file contains test code deliberately not contained in |
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* the same source file as the tests that use them, to avoid making |
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* them nestmates, which affects accessibility rules (see JEP 181). |
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*/ |
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class NonNestmates { |
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|
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public void checkPackageAccess(AtomicIntegerFieldUpdaterTest obj) { |
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obj.x = 72; |
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AtomicIntegerFieldUpdater<AtomicIntegerFieldUpdaterTest> a = |
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AtomicIntegerFieldUpdater.newUpdater( |
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AtomicIntegerFieldUpdaterTest.class, "x"); |
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assertEquals(72, a.get(obj)); |
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assertTrue(a.compareAndSet(obj, 72, 73)); |
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assertEquals(73, a.get(obj)); |
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} |
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|
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public void checkPackageAccess(AtomicLongFieldUpdaterTest obj) { |
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obj.x = 72L; |
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AtomicLongFieldUpdater<AtomicLongFieldUpdaterTest> a = |
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AtomicLongFieldUpdater.newUpdater( |
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AtomicLongFieldUpdaterTest.class, "x"); |
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assertEquals(72L, a.get(obj)); |
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assertTrue(a.compareAndSet(obj, 72L, 73L)); |
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assertEquals(73L, a.get(obj)); |
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} |
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|
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public void checkPackageAccess(AtomicReferenceFieldUpdaterTest obj) { |
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Item one = new Item(1); |
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Item two = new Item(2); |
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obj.x = one; |
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AtomicReferenceFieldUpdater<AtomicReferenceFieldUpdaterTest,Item> a = |
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AtomicReferenceFieldUpdater.newUpdater( |
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AtomicReferenceFieldUpdaterTest.class, Item.class, "x"); |
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assertSame(one, a.get(obj)); |
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assertTrue(a.compareAndSet(obj, one, two)); |
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assertSame(two, a.get(obj)); |
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} |
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|
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public void checkPrivateAccess(AtomicIntegerFieldUpdaterTest obj) { |
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try { |
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AtomicIntegerFieldUpdater<AtomicIntegerFieldUpdaterTest> a = |
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AtomicIntegerFieldUpdater.newUpdater( |
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AtomicIntegerFieldUpdaterTest.class, "privateField"); |
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throw new AssertionError("should throw"); |
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} catch (RuntimeException success) { |
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assertNotNull(success.getCause()); |
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} |
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} |
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|
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public void checkPrivateAccess(AtomicLongFieldUpdaterTest obj) { |
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try { |
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AtomicLongFieldUpdater<AtomicLongFieldUpdaterTest> a = |
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AtomicLongFieldUpdater.newUpdater( |
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AtomicLongFieldUpdaterTest.class, "privateField"); |
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throw new AssertionError("should throw"); |
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} catch (RuntimeException success) { |
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assertNotNull(success.getCause()); |
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} |
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} |
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|
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public void checkPrivateAccess(AtomicReferenceFieldUpdaterTest obj) { |
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try { |
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AtomicReferenceFieldUpdater<AtomicReferenceFieldUpdaterTest,Integer> a = |
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AtomicReferenceFieldUpdater.newUpdater( |
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AtomicReferenceFieldUpdaterTest.class, |
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Integer.class, "privateField"); |
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throw new AssertionError("should throw"); |
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} catch (RuntimeException success) { |
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assertNotNull(success.getCause()); |
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} |
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} |
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|
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static class AtomicIntegerFieldUpdaterTestSubclass |
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extends AtomicIntegerFieldUpdaterTest { |
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|
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public void checkPrivateAccess() { |
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try { |
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AtomicIntegerFieldUpdater<AtomicIntegerFieldUpdaterTest> a = |
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AtomicIntegerFieldUpdater.newUpdater( |
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AtomicIntegerFieldUpdaterTest.class, "privateField"); |
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shouldThrow(); |
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} catch (RuntimeException success) { |
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assertNotNull(success.getCause()); |
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} |
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} |
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|
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public void checkCompareAndSetProtectedSub() { |
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AtomicIntegerFieldUpdater<AtomicIntegerFieldUpdaterTest> a = |
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AtomicIntegerFieldUpdater.newUpdater( |
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AtomicIntegerFieldUpdaterTest.class, "protectedField"); |
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this.protectedField = 1; |
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assertTrue(a.compareAndSet(this, 1, 2)); |
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assertTrue(a.compareAndSet(this, 2, -4)); |
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assertEquals(-4, a.get(this)); |
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assertFalse(a.compareAndSet(this, -5, 7)); |
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assertEquals(-4, a.get(this)); |
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assertTrue(a.compareAndSet(this, -4, 7)); |
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assertEquals(7, a.get(this)); |
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} |
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} |
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|
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static class AtomicLongFieldUpdaterTestSubclass |
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extends AtomicLongFieldUpdaterTest { |
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|
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public void checkPrivateAccess() { |
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try { |
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AtomicLongFieldUpdater<AtomicLongFieldUpdaterTest> a = |
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AtomicLongFieldUpdater.newUpdater( |
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AtomicLongFieldUpdaterTest.class, "privateField"); |
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shouldThrow(); |
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} catch (RuntimeException success) { |
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assertNotNull(success.getCause()); |
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} |
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} |
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|
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public void checkCompareAndSetProtectedSub() { |
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AtomicLongFieldUpdater<AtomicLongFieldUpdaterTest> a = |
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AtomicLongFieldUpdater.newUpdater( |
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AtomicLongFieldUpdaterTest.class, "protectedField"); |
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this.protectedField = 1; |
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assertTrue(a.compareAndSet(this, 1, 2)); |
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assertTrue(a.compareAndSet(this, 2, -4)); |
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assertEquals(-4, a.get(this)); |
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assertFalse(a.compareAndSet(this, -5, 7)); |
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assertEquals(-4, a.get(this)); |
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assertTrue(a.compareAndSet(this, -4, 7)); |
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assertEquals(7, a.get(this)); |
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} |
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} |
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|
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static class AtomicReferenceFieldUpdaterTestSubclass |
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extends AtomicReferenceFieldUpdaterTest { |
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|
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public void checkPrivateAccess() { |
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try { |
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AtomicReferenceFieldUpdater<AtomicReferenceFieldUpdaterTest,Integer> a = |
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AtomicReferenceFieldUpdater.newUpdater( |
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AtomicReferenceFieldUpdaterTest.class, |
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Integer.class, "privateField"); |
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shouldThrow(); |
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} catch (RuntimeException success) { |
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assertNotNull(success.getCause()); |
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} |
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} |
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|
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public void checkCompareAndSetProtectedSub() { |
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AtomicReferenceFieldUpdater<AtomicReferenceFieldUpdaterTest,Item> a = |
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AtomicReferenceFieldUpdater.newUpdater( |
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AtomicReferenceFieldUpdaterTest.class, |
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Item.class, "protectedField"); |
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this.protectedField = one; |
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assertTrue(a.compareAndSet(this, one, two)); |
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assertTrue(a.compareAndSet(this, two, minusFour)); |
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assertSame(minusFour, a.get(this)); |
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assertFalse(a.compareAndSet(this, minusFive, seven)); |
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assertNotSame(seven, a.get(this)); |
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assertTrue(a.compareAndSet(this, minusFour, seven)); |
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assertSame(seven, a.get(this)); |
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} |
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} |
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} |
