/** getAndSet returns previous value and sets to given value */
public void testGetAndSet() {
AtomicReferenceFieldUpdater<AtomicReferenceFieldUpdaterTest, Integer> a;
try {
a =
AtomicReferenceFieldUpdater.newUpdater(
AtomicReferenceFieldUpdaterTest.class, Integer.class, "x");
} catch (RuntimeException ok) {
return;
}
x = one;
assertSame(one, a.getAndSet(this, zero));
assertSame(zero, a.getAndSet(this, m10));
assertSame(m10, a.getAndSet(this, 1));
}
