/*
* Copyright (c) 2015, Oracle and/or its affiliates. All rights reserved.
* 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
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* questions.
*/
/*
* @test
* @run testng/othervm -Diters=10 -Xint VarHandleTestAccessShort
* @run testng/othervm -Diters=20000 -XX:TieredStopAtLevel=1 VarHandleTestAccessShort
* @run testng/othervm -Diters=20000 VarHandleTestAccessShort
* @run testng/othervm -Diters=20000 -XX:-TieredCompilation VarHandleTestAccessShort
* @run testng/othervm -Diters=20000 -Djava.lang.invoke.VarHandle.VAR_HANDLE_GUARDS=false VarHandleTestAccessShort
*/
import org.testng.annotations.BeforeClass;
import org.testng.annotations.DataProvider;
import org.testng.annotations.Test;
import java.lang.invoke.MethodHandles;
import java.lang.invoke.VarHandle;
import java.util.ArrayList;
import java.util.Arrays;
import java.util.List;
import static org.testng.Assert.*;
public class VarHandleTestAccessShort extends VarHandleBaseTest {
static final short static_final_v = (short)1;
static short static_v;
final short final_v = (short)1;
short v;
VarHandle vhFinalField;
VarHandle vhField;
VarHandle vhStaticField;
VarHandle vhStaticFinalField;
VarHandle vhArray;
@BeforeClass
public void setup() throws Exception {
vhFinalField = MethodHandles.lookup().findVarHandle(
VarHandleTestAccessShort.class, "final_v", short.class);
vhField = MethodHandles.lookup().findVarHandle(
VarHandleTestAccessShort.class, "v", short.class);
vhStaticFinalField = MethodHandles.lookup().findStaticVarHandle(
VarHandleTestAccessShort.class, "static_final_v", short.class);
vhStaticField = MethodHandles.lookup().findStaticVarHandle(
VarHandleTestAccessShort.class, "static_v", short.class);
vhArray = MethodHandles.arrayElementVarHandle(short[].class);
}
@DataProvider
public Object[][] varHandlesProvider() throws Exception {
List<VarHandle> vhs = new ArrayList<>();
vhs.add(vhField);
vhs.add(vhStaticField);
vhs.add(vhArray);
return vhs.stream().map(tc -> new Object[]{tc}).toArray(Object[][]::new);
}
@Test(dataProvider = "varHandlesProvider")
public void testIsAccessModeSupported(VarHandle vh) {
assertTrue(vh.isAccessModeSupported(VarHandle.AccessMode.GET));
assertTrue(vh.isAccessModeSupported(VarHandle.AccessMode.SET));
assertTrue(vh.isAccessModeSupported(VarHandle.AccessMode.GET_VOLATILE));
assertTrue(vh.isAccessModeSupported(VarHandle.AccessMode.SET_VOLATILE));
assertTrue(vh.isAccessModeSupported(VarHandle.AccessMode.GET_ACQUIRE));
assertTrue(vh.isAccessModeSupported(VarHandle.AccessMode.SET_RELEASE));
assertTrue(vh.isAccessModeSupported(VarHandle.AccessMode.GET_OPAQUE));
assertTrue(vh.isAccessModeSupported(VarHandle.AccessMode.SET_OPAQUE));
assertFalse(vh.isAccessModeSupported(VarHandle.AccessMode.COMPARE_AND_SET));
assertFalse(vh.isAccessModeSupported(VarHandle.AccessMode.COMPARE_AND_EXCHANGE_VOLATILE));
assertFalse(vh.isAccessModeSupported(VarHandle.AccessMode.COMPARE_AND_EXCHANGE_ACQUIRE));
assertFalse(vh.isAccessModeSupported(VarHandle.AccessMode.COMPARE_AND_EXCHANGE_RELEASE));
assertFalse(vh.isAccessModeSupported(VarHandle.AccessMode.WEAK_COMPARE_AND_SET));
assertFalse(vh.isAccessModeSupported(VarHandle.AccessMode.WEAK_COMPARE_AND_SET_VOLATILE));
assertFalse(vh.isAccessModeSupported(VarHandle.AccessMode.WEAK_COMPARE_AND_SET_ACQUIRE));
assertFalse(vh.isAccessModeSupported(VarHandle.AccessMode.WEAK_COMPARE_AND_SET_RELEASE));
assertFalse(vh.isAccessModeSupported(VarHandle.AccessMode.GET_AND_SET));
assertFalse(vh.isAccessModeSupported(VarHandle.AccessMode.GET_AND_ADD));
assertFalse(vh.isAccessModeSupported(VarHandle.AccessMode.ADD_AND_GET));
}
@DataProvider
public Object[][] typesProvider() throws Exception {
List<Object[]> types = new ArrayList<>();
types.add(new Object[] {vhField, Arrays.asList(VarHandleTestAccessShort.class)});
types.add(new Object[] {vhStaticField, Arrays.asList()});
types.add(new Object[] {vhArray, Arrays.asList(short[].class, int.class)});
return types.stream().toArray(Object[][]::new);
}
@Test(dataProvider = "typesProvider")
public void testTypes(VarHandle vh, List<Class<?>> pts) {
assertEquals(vh.varType(), short.class);
assertEquals(vh.coordinateTypes(), pts);
testTypes(vh);
}
@Test
public void testLookupInstanceToStatic() {
checkIAE("Lookup of static final field to instance final field", () -> {
MethodHandles.lookup().findStaticVarHandle(
VarHandleTestAccessShort.class, "final_v", short.class);
});
checkIAE("Lookup of static field to instance field", () -> {
MethodHandles.lookup().findStaticVarHandle(
VarHandleTestAccessShort.class, "v", short.class);
});
}
@Test
public void testLookupStaticToInstance() {
checkIAE("Lookup of instance final field to static final field", () -> {
MethodHandles.lookup().findVarHandle(
VarHandleTestAccessShort.class, "static_final_v", short.class);
});
checkIAE("Lookup of instance field to static field", () -> {
vhStaticField = MethodHandles.lookup().findVarHandle(
VarHandleTestAccessShort.class, "static_v", short.class);
});
}
@DataProvider
public Object[][] accessTestCaseProvider() throws Exception {
List<AccessTestCase<?>> cases = new ArrayList<>();
cases.add(new VarHandleAccessTestCase("Instance final field",
vhFinalField, vh -> testInstanceFinalField(this, vh)));
cases.add(new VarHandleAccessTestCase("Instance final field unsupported",
vhFinalField, vh -> testInstanceFinalFieldUnsupported(this, vh),
false));
cases.add(new VarHandleAccessTestCase("Static final field",
vhStaticFinalField, VarHandleTestAccessShort::testStaticFinalField));
cases.add(new VarHandleAccessTestCase("Static final field unsupported",
vhStaticFinalField, VarHandleTestAccessShort::testStaticFinalFieldUnsupported,
false));
cases.add(new VarHandleAccessTestCase("Instance field",
vhField, vh -> testInstanceField(this, vh)));
cases.add(new VarHandleAccessTestCase("Instance field unsupported",
vhField, vh -> testInstanceFieldUnsupported(this, vh),
false));
cases.add(new VarHandleAccessTestCase("Static field",
vhStaticField, VarHandleTestAccessShort::testStaticField));
cases.add(new VarHandleAccessTestCase("Static field unsupported",
vhStaticField, VarHandleTestAccessShort::testStaticFieldUnsupported,
false));
cases.add(new VarHandleAccessTestCase("Array",
vhArray, VarHandleTestAccessShort::testArray));
cases.add(new VarHandleAccessTestCase("Array unsupported",
vhArray, VarHandleTestAccessShort::testArrayUnsupported,
false));
cases.add(new VarHandleAccessTestCase("Array index out of bounds",
vhArray, VarHandleTestAccessShort::testArrayIndexOutOfBounds,
false));
// Work around issue with jtreg summary reporting which truncates
// the String result of Object.toString to 30 characters, hence
// the first dummy argument
return cases.stream().map(tc -> new Object[]{tc.toString(), tc}).toArray(Object[][]::new);
}
@Test(dataProvider = "accessTestCaseProvider")
public <T> void testAccess(String desc, AccessTestCase<T> atc) throws Throwable {
T t = atc.get();
int iters = atc.requiresLoop() ? ITERS : 1;
for (int c = 0; c < iters; c++) {
atc.testAccess(t);
}
}
static void testInstanceFinalField(VarHandleTestAccessShort recv, VarHandle vh) {
// Plain
{
short x = (short) vh.get(recv);
assertEquals(x, (short)1, "get short value");
}
// Volatile
{
short x = (short) vh.getVolatile(recv);
assertEquals(x, (short)1, "getVolatile short value");
}
// Lazy
{
short x = (short) vh.getAcquire(recv);
assertEquals(x, (short)1, "getRelease short value");
}
// Opaque
{
short x = (short) vh.getOpaque(recv);
assertEquals(x, (short)1, "getOpaque short value");
}
}
static void testInstanceFinalFieldUnsupported(VarHandleTestAccessShort recv, VarHandle vh) {
checkUOE(() -> {
vh.set(recv, (short)2);
});
checkUOE(() -> {
vh.setVolatile(recv, (short)2);
});
checkUOE(() -> {
vh.setRelease(recv, (short)2);
});
checkUOE(() -> {
vh.setOpaque(recv, (short)2);
});
checkUOE(() -> {
boolean r = vh.compareAndSet(recv, (short)1, (short)2);
});
checkUOE(() -> {
short r = (short) vh.compareAndExchangeVolatile(recv, (short)1, (short)2);
});
checkUOE(() -> {
short r = (short) vh.compareAndExchangeAcquire(recv, (short)1, (short)2);
});
checkUOE(() -> {
short r = (short) vh.compareAndExchangeRelease(recv, (short)1, (short)2);
});
checkUOE(() -> {
boolean r = vh.weakCompareAndSet(recv, (short)1, (short)2);
});
checkUOE(() -> {
boolean r = vh.weakCompareAndSetVolatile(recv, (short)1, (short)2);
});
checkUOE(() -> {
boolean r = vh.weakCompareAndSetAcquire(recv, (short)1, (short)2);
});
checkUOE(() -> {
boolean r = vh.weakCompareAndSetRelease(recv, (short)1, (short)2);
});
checkUOE(() -> {
short r = (short) vh.getAndSet(recv, (short)1);
});
checkUOE(() -> {
short o = (short) vh.getAndAdd(recv, (short)1);
});
checkUOE(() -> {
short o = (short) vh.addAndGet(recv, (short)1);
});
}
static void testStaticFinalField(VarHandle vh) {
// Plain
{
short x = (short) vh.get();
assertEquals(x, (short)1, "get short value");
}
// Volatile
{
short x = (short) vh.getVolatile();
assertEquals(x, (short)1, "getVolatile short value");
}
// Lazy
{
short x = (short) vh.getAcquire();
assertEquals(x, (short)1, "getRelease short value");
}
// Opaque
{
short x = (short) vh.getOpaque();
assertEquals(x, (short)1, "getOpaque short value");
}
}
static void testStaticFinalFieldUnsupported(VarHandle vh) {
checkUOE(() -> {
vh.set((short)2);
});
checkUOE(() -> {
vh.setVolatile((short)2);
});
checkUOE(() -> {
vh.setRelease((short)2);
});
checkUOE(() -> {
vh.setOpaque((short)2);
});
checkUOE(() -> {
boolean r = vh.compareAndSet((short)1, (short)2);
});
checkUOE(() -> {
short r = (short) vh.compareAndExchangeVolatile((short)1, (short)2);
});
checkUOE(() -> {
short r = (short) vh.compareAndExchangeAcquire((short)1, (short)2);
});
checkUOE(() -> {
short r = (short) vh.compareAndExchangeRelease((short)1, (short)2);
});
checkUOE(() -> {
boolean r = vh.weakCompareAndSet((short)1, (short)2);
});
checkUOE(() -> {
boolean r = vh.weakCompareAndSetVolatile((short)1, (short)2);
});
checkUOE(() -> {
boolean r = vh.weakCompareAndSetAcquire((short)1, (short)2);
});
checkUOE(() -> {
boolean r = vh.weakCompareAndSetRelease((short)1, (short)2);
});
checkUOE(() -> {
short r = (short) vh.getAndSet((short)1);
});
checkUOE(() -> {
short o = (short) vh.getAndAdd((short)1);
});
checkUOE(() -> {
short o = (short) vh.addAndGet((short)1);
});
}
static void testInstanceField(VarHandleTestAccessShort recv, VarHandle vh) {
// Plain
{
vh.set(recv, (short)1);
short x = (short) vh.get(recv);
assertEquals(x, (short)1, "set short value");
}
// Volatile
{
vh.setVolatile(recv, (short)2);
short x = (short) vh.getVolatile(recv);
assertEquals(x, (short)2, "setVolatile short value");
}
// Lazy
{
vh.setRelease(recv, (short)1);
short x = (short) vh.getAcquire(recv);
assertEquals(x, (short)1, "setRelease short value");
}
// Opaque
{
vh.setOpaque(recv, (short)2);
short x = (short) vh.getOpaque(recv);
assertEquals(x, (short)2, "setOpaque short value");
}
}
static void testInstanceFieldUnsupported(VarHandleTestAccessShort recv, VarHandle vh) {
checkUOE(() -> {
boolean r = vh.compareAndSet(recv, (short)1, (short)2);
});
checkUOE(() -> {
short r = (short) vh.compareAndExchangeVolatile(recv, (short)1, (short)2);
});
checkUOE(() -> {
short r = (short) vh.compareAndExchangeAcquire(recv, (short)1, (short)2);
});
checkUOE(() -> {
short r = (short) vh.compareAndExchangeRelease(recv, (short)1, (short)2);
});
checkUOE(() -> {
boolean r = vh.weakCompareAndSet(recv, (short)1, (short)2);
});
checkUOE(() -> {
boolean r = vh.weakCompareAndSetVolatile(recv, (short)1, (short)2);
});
checkUOE(() -> {
boolean r = vh.weakCompareAndSetAcquire(recv, (short)1, (short)2);
});
checkUOE(() -> {
boolean r = vh.weakCompareAndSetRelease(recv, (short)1, (short)2);
});
checkUOE(() -> {
short r = (short) vh.getAndSet(recv, (short)1);
});
checkUOE(() -> {
short o = (short) vh.getAndAdd(recv, (short)1);
});
checkUOE(() -> {
short o = (short) vh.addAndGet(recv, (short)1);
});
}
static void testStaticField(VarHandle vh) {
// Plain
{
vh.set((short)1);
short x = (short) vh.get();
assertEquals(x, (short)1, "set short value");
}
// Volatile
{
vh.setVolatile((short)2);
short x = (short) vh.getVolatile();
assertEquals(x, (short)2, "setVolatile short value");
}
// Lazy
{
vh.setRelease((short)1);
short x = (short) vh.getAcquire();
assertEquals(x, (short)1, "setRelease short value");
}
// Opaque
{
vh.setOpaque((short)2);
short x = (short) vh.getOpaque();
assertEquals(x, (short)2, "setOpaque short value");
}
}
static void testStaticFieldUnsupported(VarHandle vh) {
checkUOE(() -> {
boolean r = vh.compareAndSet((short)1, (short)2);
});
checkUOE(() -> {
short r = (short) vh.compareAndExchangeVolatile((short)1, (short)2);
});
checkUOE(() -> {
short r = (short) vh.compareAndExchangeAcquire((short)1, (short)2);
});
checkUOE(() -> {
short r = (short) vh.compareAndExchangeRelease((short)1, (short)2);
});
checkUOE(() -> {
boolean r = vh.weakCompareAndSet((short)1, (short)2);
});
checkUOE(() -> {
boolean r = vh.weakCompareAndSetVolatile((short)1, (short)2);
});
checkUOE(() -> {
boolean r = vh.weakCompareAndSetAcquire((short)1, (short)2);
});
checkUOE(() -> {
boolean r = vh.weakCompareAndSetRelease((short)1, (short)2);
});
checkUOE(() -> {
short r = (short) vh.getAndSet((short)1);
});
checkUOE(() -> {
short o = (short) vh.getAndAdd((short)1);
});
checkUOE(() -> {
short o = (short) vh.addAndGet((short)1);
});
}
static void testArray(VarHandle vh) {
short[] array = new short[10];
for (int i = 0; i < array.length; i++) {
// Plain
{
vh.set(array, i, (short)1);
short x = (short) vh.get(array, i);
assertEquals(x, (short)1, "get short value");
}
// Volatile
{
vh.setVolatile(array, i, (short)2);
short x = (short) vh.getVolatile(array, i);
assertEquals(x, (short)2, "setVolatile short value");
}
// Lazy
{
vh.setRelease(array, i, (short)1);
short x = (short) vh.getAcquire(array, i);
assertEquals(x, (short)1, "setRelease short value");
}
// Opaque
{
vh.setOpaque(array, i, (short)2);
short x = (short) vh.getOpaque(array, i);
assertEquals(x, (short)2, "setOpaque short value");
}
}
}
static void testArrayUnsupported(VarHandle vh) {
short[] array = new short[10];
int i = 0;
checkUOE(() -> {
boolean r = vh.compareAndSet(array, i, (short)1, (short)2);
});
checkUOE(() -> {
short r = (short) vh.compareAndExchangeVolatile(array, i, (short)1, (short)2);
});
checkUOE(() -> {
short r = (short) vh.compareAndExchangeAcquire(array, i, (short)1, (short)2);
});
checkUOE(() -> {
short r = (short) vh.compareAndExchangeRelease(array, i, (short)1, (short)2);
});
checkUOE(() -> {
boolean r = vh.weakCompareAndSet(array, i, (short)1, (short)2);
});
checkUOE(() -> {
boolean r = vh.weakCompareAndSetVolatile(array, i, (short)1, (short)2);
});
checkUOE(() -> {
boolean r = vh.weakCompareAndSetAcquire(array, i, (short)1, (short)2);
});
checkUOE(() -> {
boolean r = vh.weakCompareAndSetRelease(array, i, (short)1, (short)2);
});
checkUOE(() -> {
short r = (short) vh.getAndSet(array, i, (short)1);
});
checkUOE(() -> {
short o = (short) vh.getAndAdd(array, i, (short)1);
});
checkUOE(() -> {
short o = (short) vh.addAndGet(array, i, (short)1);
});
}
static void testArrayIndexOutOfBounds(VarHandle vh) throws Throwable {
short[] array = new short[10];
for (int i : new int[]{-1, Integer.MIN_VALUE, 10, 11, Integer.MAX_VALUE}) {
final int ci = i;
checkIOOBE(() -> {
short x = (short) vh.get(array, ci);
});
checkIOOBE(() -> {
vh.set(array, ci, (short)1);
});
checkIOOBE(() -> {
short x = (short) vh.getVolatile(array, ci);
});
checkIOOBE(() -> {
vh.setVolatile(array, ci, (short)1);
});
checkIOOBE(() -> {
short x = (short) vh.getAcquire(array, ci);
});
checkIOOBE(() -> {
vh.setRelease(array, ci, (short)1);
});
checkIOOBE(() -> {
short x = (short) vh.getOpaque(array, ci);
});
checkIOOBE(() -> {
vh.setOpaque(array, ci, (short)1);
});
}
}
}