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/*
* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
*
* This code is free software; you can redistribute it and/or modify it
* under the terms of the GNU General Public License version 2 only, as
* published by the Free Software Foundation.
*
* This code is distributed in the hope that it will be useful, but WITHOUT
* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
* version 2 for more details (a copy is included in the LICENSE file that
* accompanied this code).
*
* You should have received a copy of the GNU General Public License version
* 2 along with this work; if not, write to the Free Software Foundation,
* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
*
* Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
* or visit www.oracle.com if you need additional information or have any
* questions.
*/
/*
* This file is available under and governed by the GNU General Public
* License version 2 only, as published by the Free Software Foundation.
* However, the following notice accompanied the original version of this
* file:
*
* Written by Doug Lea with assistance from members of JCP JSR-166
* Expert Group and released to the public domain, as explained at
* http://creativecommons.org/publicdomain/zero/1.0/
* Other contributors include Andrew Wright, Jeffrey Hayes,
* Pat Fisher, Mike Judd.
*/
import static org.junit.Assert.assertEquals;
import static org.junit.Assert.assertNotNull;
import static org.junit.Assert.assertSame;
import static org.junit.Assert.assertTrue;
import java.util.concurrent.atomic.AtomicIntegerFieldUpdater;
import java.util.concurrent.atomic.AtomicLongFieldUpdater;
import java.util.concurrent.atomic.AtomicReferenceFieldUpdater;
/**
* This source file contains test code deliberately not contained in
* the same source file as the tests that use them, to avoid making
* them nestmates, which affects accessibility rules (see JEP 181).
*/
class NonNestmates {
public void checkPackageAccess(AtomicIntegerFieldUpdaterTest obj) {
obj.x = 72;
AtomicIntegerFieldUpdater<AtomicIntegerFieldUpdaterTest> a =
AtomicIntegerFieldUpdater.newUpdater(
AtomicIntegerFieldUpdaterTest.class, "x");
assertEquals(72, a.get(obj));
assertTrue(a.compareAndSet(obj, 72, 73));
assertEquals(73, a.get(obj));
}
public void checkPackageAccess(AtomicLongFieldUpdaterTest obj) {
obj.x = 72L;
AtomicLongFieldUpdater<AtomicLongFieldUpdaterTest> a =
AtomicLongFieldUpdater.newUpdater(
AtomicLongFieldUpdaterTest.class, "x");
assertEquals(72L, a.get(obj));
assertTrue(a.compareAndSet(obj, 72L, 73L));
assertEquals(73L, a.get(obj));
}
public void checkPackageAccess(AtomicReferenceFieldUpdaterTest obj) {
Integer one = new Integer(1);
Integer two = new Integer(2);
obj.x = one;
AtomicReferenceFieldUpdater<AtomicReferenceFieldUpdaterTest,Integer> a =
AtomicReferenceFieldUpdater.newUpdater(
AtomicReferenceFieldUpdaterTest.class, Integer.class, "x");
assertSame(one, a.get(obj));
assertTrue(a.compareAndSet(obj, one, two));
assertSame(two, a.get(obj));
}
public void checkPrivateAccess(AtomicIntegerFieldUpdaterTest obj) {
try {
AtomicIntegerFieldUpdater<AtomicIntegerFieldUpdaterTest> a =
AtomicIntegerFieldUpdater.newUpdater(
AtomicIntegerFieldUpdaterTest.class, "privateField");
throw new AssertionError("should throw");
} catch (RuntimeException success) {
assertNotNull(success.getCause());
}
}
public void checkPrivateAccess(AtomicLongFieldUpdaterTest obj) {
try {
AtomicLongFieldUpdater<AtomicLongFieldUpdaterTest> a =
AtomicLongFieldUpdater.newUpdater(
AtomicLongFieldUpdaterTest.class, "privateField");
throw new AssertionError("should throw");
} catch (RuntimeException success) {
assertNotNull(success.getCause());
}
}
public void checkPrivateAccess(AtomicReferenceFieldUpdaterTest obj) {
try {
AtomicReferenceFieldUpdater<AtomicReferenceFieldUpdaterTest,Integer> a =
AtomicReferenceFieldUpdater.newUpdater(
AtomicReferenceFieldUpdaterTest.class,
Integer.class, "privateField");
throw new AssertionError("should throw");
} catch (RuntimeException success) {
assertNotNull(success.getCause());
}
}
static class AtomicIntegerFieldUpdaterTestSubclass
extends AtomicIntegerFieldUpdaterTest {
public void checkPrivateAccess() {
try {
AtomicIntegerFieldUpdater<AtomicIntegerFieldUpdaterTest> a =
AtomicIntegerFieldUpdater.newUpdater(
AtomicIntegerFieldUpdaterTest.class, "privateField");
shouldThrow();
} catch (RuntimeException success) {
assertNotNull(success.getCause());
}
}
public void checkCompareAndSetProtectedSub() {
AtomicIntegerFieldUpdater<AtomicIntegerFieldUpdaterTest> a =
AtomicIntegerFieldUpdater.newUpdater(
AtomicIntegerFieldUpdaterTest.class, "protectedField");
this.protectedField = 1;
assertTrue(a.compareAndSet(this, 1, 2));
assertTrue(a.compareAndSet(this, 2, -4));
assertEquals(-4, a.get(this));
assertFalse(a.compareAndSet(this, -5, 7));
assertEquals(-4, a.get(this));
assertTrue(a.compareAndSet(this, -4, 7));
assertEquals(7, a.get(this));
}
}
static class AtomicLongFieldUpdaterTestSubclass
extends AtomicLongFieldUpdaterTest {
public void checkPrivateAccess() {
try {
AtomicLongFieldUpdater<AtomicLongFieldUpdaterTest> a =
AtomicLongFieldUpdater.newUpdater(
AtomicLongFieldUpdaterTest.class, "privateField");
shouldThrow();
} catch (RuntimeException success) {
assertNotNull(success.getCause());
}
}
public void checkCompareAndSetProtectedSub() {
AtomicLongFieldUpdater<AtomicLongFieldUpdaterTest> a =
AtomicLongFieldUpdater.newUpdater(
AtomicLongFieldUpdaterTest.class, "protectedField");
this.protectedField = 1;
assertTrue(a.compareAndSet(this, 1, 2));
assertTrue(a.compareAndSet(this, 2, -4));
assertEquals(-4, a.get(this));
assertFalse(a.compareAndSet(this, -5, 7));
assertEquals(-4, a.get(this));
assertTrue(a.compareAndSet(this, -4, 7));
assertEquals(7, a.get(this));
}
}
static class AtomicReferenceFieldUpdaterTestSubclass
extends AtomicReferenceFieldUpdaterTest {
public void checkPrivateAccess() {
try {
AtomicReferenceFieldUpdater<AtomicReferenceFieldUpdaterTest,Integer> a =
AtomicReferenceFieldUpdater.newUpdater(
AtomicReferenceFieldUpdaterTest.class,
Integer.class, "privateField");
shouldThrow();
} catch (RuntimeException success) {
assertNotNull(success.getCause());
}
}
public void checkCompareAndSetProtectedSub() {
AtomicReferenceFieldUpdater<AtomicReferenceFieldUpdaterTest,Integer> a =
AtomicReferenceFieldUpdater.newUpdater(
AtomicReferenceFieldUpdaterTest.class,
Integer.class, "protectedField");
this.protectedField = one;
assertTrue(a.compareAndSet(this, one, two));
assertTrue(a.compareAndSet(this, two, m4));
assertSame(m4, a.get(this));
assertFalse(a.compareAndSet(this, m5, seven));
assertNotSame(seven, a.get(this));
assertTrue(a.compareAndSet(this, m4, seven));
assertSame(seven, a.get(this));
}
}
}
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