/*
* 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
* or visit www.oracle.com if you need additional information or have any
* questions.
*/
/*
* @test
* @run testng/othervm -Diters=10 -Xint VarHandleTestAccessString
* @run testng/othervm -Diters=20000 -XX:TieredStopAtLevel=1 VarHandleTestAccessString
* @run testng/othervm -Diters=20000 VarHandleTestAccessString
* @run testng/othervm -Diters=20000 -XX:-TieredCompilation VarHandleTestAccessString
*/
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 VarHandleTestAccessString extends VarHandleBaseTest {
static final String static_final_v = "foo";
static String static_v;
final String final_v = "foo";
String v;
VarHandle vhFinalField;
VarHandle vhField;
VarHandle vhStaticField;
VarHandle vhStaticFinalField;
VarHandle vhArray;
@BeforeClass
public void setup() throws Exception {
vhFinalField = MethodHandles.lookup().findVarHandle(
VarHandleTestAccessString.class, "final_v", String.class);
vhField = MethodHandles.lookup().findVarHandle(
VarHandleTestAccessString.class, "v", String.class);
vhStaticFinalField = MethodHandles.lookup().findStaticVarHandle(
VarHandleTestAccessString.class, "static_final_v", String.class);
vhStaticField = MethodHandles.lookup().findStaticVarHandle(
VarHandleTestAccessString.class, "static_v", String.class);
vhArray = MethodHandles.arrayElementVarHandle(String[].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));
assertTrue(vh.isAccessModeSupported(VarHandle.AccessMode.COMPARE_AND_SET));
assertTrue(vh.isAccessModeSupported(VarHandle.AccessMode.COMPARE_AND_EXCHANGE));
assertTrue(vh.isAccessModeSupported(VarHandle.AccessMode.COMPARE_AND_EXCHANGE_ACQUIRE));
assertTrue(vh.isAccessModeSupported(VarHandle.AccessMode.COMPARE_AND_EXCHANGE_RELEASE));
assertTrue(vh.isAccessModeSupported(VarHandle.AccessMode.WEAK_COMPARE_AND_SET_PLAIN));
assertTrue(vh.isAccessModeSupported(VarHandle.AccessMode.WEAK_COMPARE_AND_SET));
assertTrue(vh.isAccessModeSupported(VarHandle.AccessMode.WEAK_COMPARE_AND_SET_ACQUIRE));
assertTrue(vh.isAccessModeSupported(VarHandle.AccessMode.WEAK_COMPARE_AND_SET_RELEASE));
assertTrue(vh.isAccessModeSupported(VarHandle.AccessMode.GET_AND_SET));
assertTrue(vh.isAccessModeSupported(VarHandle.AccessMode.GET_AND_SET_ACQUIRE));
assertTrue(vh.isAccessModeSupported(VarHandle.AccessMode.GET_AND_SET_RELEASE));
assertFalse(vh.isAccessModeSupported(VarHandle.AccessMode.GET_AND_ADD));
assertFalse(vh.isAccessModeSupported(VarHandle.AccessMode.GET_AND_ADD_ACQUIRE));
assertFalse(vh.isAccessModeSupported(VarHandle.AccessMode.GET_AND_ADD_RELEASE));
assertFalse(vh.isAccessModeSupported(VarHandle.AccessMode.GET_AND_BITWISE_OR));
assertFalse(vh.isAccessModeSupported(VarHandle.AccessMode.GET_AND_BITWISE_OR_ACQUIRE));
assertFalse(vh.isAccessModeSupported(VarHandle.AccessMode.GET_AND_BITWISE_OR_RELEASE));
assertFalse(vh.isAccessModeSupported(VarHandle.AccessMode.GET_AND_BITWISE_AND));
assertFalse(vh.isAccessModeSupported(VarHandle.AccessMode.GET_AND_BITWISE_AND_ACQUIRE));
assertFalse(vh.isAccessModeSupported(VarHandle.AccessMode.GET_AND_BITWISE_AND_RELEASE));
assertFalse(vh.isAccessModeSupported(VarHandle.AccessMode.GET_AND_BITWISE_XOR));
assertFalse(vh.isAccessModeSupported(VarHandle.AccessMode.GET_AND_BITWISE_XOR_ACQUIRE));
assertFalse(vh.isAccessModeSupported(VarHandle.AccessMode.GET_AND_BITWISE_XOR_RELEASE));
}
@DataProvider
public Object[][] typesProvider() throws Exception {
List<Object[]> types = new ArrayList<>();
types.add(new Object[] {vhField, Arrays.asList(VarHandleTestAccessString.class)});
types.add(new Object[] {vhStaticField, Arrays.asList()});
types.add(new Object[] {vhArray, Arrays.asList(String[].class, int.class)});
return types.stream().toArray(Object[][]::new);
}
@Test(dataProvider = "typesProvider")
public void testTypes(VarHandle vh, List<Class<?>> pts) {
assertEquals(vh.varType(), String.class);
assertEquals(vh.coordinateTypes(), pts);
testTypes(vh);
}
@Test
public void testLookupInstanceToStatic() {
checkIAE("Lookup of static final field to instance final field", () -> {
MethodHandles.lookup().findStaticVarHandle(
VarHandleTestAccessString.class, "final_v", String.class);
});
checkIAE("Lookup of static field to instance field", () -> {
MethodHandles.lookup().findStaticVarHandle(
VarHandleTestAccessString.class, "v", String.class);
});
}
@Test
public void testLookupStaticToInstance() {
checkIAE("Lookup of instance final field to static final field", () -> {
MethodHandles.lookup().findVarHandle(
VarHandleTestAccessString.class, "static_final_v", String.class);
});
checkIAE("Lookup of instance field to static field", () -> {
vhStaticField = MethodHandles.lookup().findVarHandle(
VarHandleTestAccessString.class, "static_v", String.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, VarHandleTestAccessString::testStaticFinalField));
cases.add(new VarHandleAccessTestCase("Static final field unsupported",
vhStaticFinalField, VarHandleTestAccessString::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, VarHandleTestAccessString::testStaticField));
cases.add(new VarHandleAccessTestCase("Static field unsupported",
vhStaticField, VarHandleTestAccessString::testStaticFieldUnsupported,
false));
cases.add(new VarHandleAccessTestCase("Array",
vhArray, VarHandleTestAccessString::testArray));
cases.add(new VarHandleAccessTestCase("Array unsupported",
vhArray, VarHandleTestAccessString::testArrayUnsupported,
false));
cases.add(new VarHandleAccessTestCase("Array index out of bounds",
vhArray, VarHandleTestAccessString::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(VarHandleTestAccessString recv, VarHandle vh) {
// Plain
{
String x = (String) vh.get(recv);
assertEquals(x, "foo", "get String value");
}
// Volatile
{
String x = (String) vh.getVolatile(recv);
assertEquals(x, "foo", "getVolatile String value");
}
// Lazy
{
String x = (String) vh.getAcquire(recv);
assertEquals(x, "foo", "getRelease String value");
}
// Opaque
{
String x = (String) vh.getOpaque(recv);
assertEquals(x, "foo", "getOpaque String value");
}
}
static void testInstanceFinalFieldUnsupported(VarHandleTestAccessString recv, VarHandle vh) {
checkUOE(() -> {
vh.set(recv, "bar");
});
checkUOE(() -> {
vh.setVolatile(recv, "bar");
});
checkUOE(() -> {
vh.setRelease(recv, "bar");
});
checkUOE(() -> {
vh.setOpaque(recv, "bar");
});
checkUOE(() -> {
String o = (String) vh.getAndAdd(recv, "foo");
});
checkUOE(() -> {
String o = (String) vh.getAndAddAcquire(recv, "foo");
});
checkUOE(() -> {
String o = (String) vh.getAndAddRelease(recv, "foo");
});
checkUOE(() -> {
String o = (String) vh.getAndBitwiseOr(recv, "foo");
});
checkUOE(() -> {
String o = (String) vh.getAndBitwiseOrAcquire(recv, "foo");
});
checkUOE(() -> {
String o = (String) vh.getAndBitwiseOrRelease(recv, "foo");
});
checkUOE(() -> {
String o = (String) vh.getAndBitwiseAnd(recv, "foo");
});
checkUOE(() -> {
String o = (String) vh.getAndBitwiseAndAcquire(recv, "foo");
});
checkUOE(() -> {
String o = (String) vh.getAndBitwiseAndRelease(recv, "foo");
});
checkUOE(() -> {
String o = (String) vh.getAndBitwiseXor(recv, "foo");
});
checkUOE(() -> {
String o = (String) vh.getAndBitwiseXorAcquire(recv, "foo");
});
checkUOE(() -> {
String o = (String) vh.getAndBitwiseXorRelease(recv, "foo");
});
}
static void testStaticFinalField(VarHandle vh) {
// Plain
{
String x = (String) vh.get();
assertEquals(x, "foo", "get String value");
}
// Volatile
{
String x = (String) vh.getVolatile();
assertEquals(x, "foo", "getVolatile String value");
}
// Lazy
{
String x = (String) vh.getAcquire();
assertEquals(x, "foo", "getRelease String value");
}
// Opaque
{
String x = (String) vh.getOpaque();
assertEquals(x, "foo", "getOpaque String value");
}
}
static void testStaticFinalFieldUnsupported(VarHandle vh) {
checkUOE(() -> {
vh.set("bar");
});
checkUOE(() -> {
vh.setVolatile("bar");
});
checkUOE(() -> {
vh.setRelease("bar");
});
checkUOE(() -> {
vh.setOpaque("bar");
});
checkUOE(() -> {
String o = (String) vh.getAndAdd("foo");
});
checkUOE(() -> {
String o = (String) vh.getAndAddAcquire("foo");
});
checkUOE(() -> {
String o = (String) vh.getAndAddRelease("foo");
});
checkUOE(() -> {
String o = (String) vh.getAndBitwiseOr("foo");
});
checkUOE(() -> {
String o = (String) vh.getAndBitwiseOrAcquire("foo");
});
checkUOE(() -> {
String o = (String) vh.getAndBitwiseOrRelease("foo");
});
checkUOE(() -> {
String o = (String) vh.getAndBitwiseAnd("foo");
});
checkUOE(() -> {
String o = (String) vh.getAndBitwiseAndAcquire("foo");
});
checkUOE(() -> {
String o = (String) vh.getAndBitwiseAndRelease("foo");
});
checkUOE(() -> {
String o = (String) vh.getAndBitwiseXor("foo");
});
checkUOE(() -> {
String o = (String) vh.getAndBitwiseXorAcquire("foo");
});
checkUOE(() -> {
String o = (String) vh.getAndBitwiseXorRelease("foo");
});
}
static void testInstanceField(VarHandleTestAccessString recv, VarHandle vh) {
// Plain
{
vh.set(recv, "foo");
String x = (String) vh.get(recv);
assertEquals(x, "foo", "set String value");
}
// Volatile
{
vh.setVolatile(recv, "bar");
String x = (String) vh.getVolatile(recv);
assertEquals(x, "bar", "setVolatile String value");
}
// Lazy
{
vh.setRelease(recv, "foo");
String x = (String) vh.getAcquire(recv);
assertEquals(x, "foo", "setRelease String value");
}
// Opaque
{
vh.setOpaque(recv, "bar");
String x = (String) vh.getOpaque(recv);
assertEquals(x, "bar", "setOpaque String value");
}
vh.set(recv, "foo");
// Compare
{
boolean r = vh.compareAndSet(recv, "foo", "bar");
assertEquals(r, true, "success compareAndSet String");
String x = (String) vh.get(recv);
assertEquals(x, "bar", "success compareAndSet String value");
}
{
boolean r = vh.compareAndSet(recv, "foo", "baz");
assertEquals(r, false, "failing compareAndSet String");
String x = (String) vh.get(recv);
assertEquals(x, "bar", "failing compareAndSet String value");
}
{
String r = (String) vh.compareAndExchange(recv, "bar", "foo");
assertEquals(r, "bar", "success compareAndExchange String");
String x = (String) vh.get(recv);
assertEquals(x, "foo", "success compareAndExchange String value");
}
{
String r = (String) vh.compareAndExchange(recv, "bar", "baz");
assertEquals(r, "foo", "failing compareAndExchange String");
String x = (String) vh.get(recv);
assertEquals(x, "foo", "failing compareAndExchange String value");
}
{
String r = (String) vh.compareAndExchangeAcquire(recv, "foo", "bar");
assertEquals(r, "foo", "success compareAndExchangeAcquire String");
String x = (String) vh.get(recv);
assertEquals(x, "bar", "success compareAndExchangeAcquire String value");
}
{
String r = (String) vh.compareAndExchangeAcquire(recv, "foo", "baz");
assertEquals(r, "bar", "failing compareAndExchangeAcquire String");
String x = (String) vh.get(recv);
assertEquals(x, "bar", "failing compareAndExchangeAcquire String value");
}
{
String r = (String) vh.compareAndExchangeRelease(recv, "bar", "foo");
assertEquals(r, "bar", "success compareAndExchangeRelease String");
String x = (String) vh.get(recv);
assertEquals(x, "foo", "success compareAndExchangeRelease String value");
}
{
String r = (String) vh.compareAndExchangeRelease(recv, "bar", "baz");
assertEquals(r, "foo", "failing compareAndExchangeRelease String");
String x = (String) vh.get(recv);
assertEquals(x, "foo", "failing compareAndExchangeRelease String value");
}
{
boolean success = false;
for (int c = 0; c < WEAK_ATTEMPTS && !success; c++) {
success = vh.weakCompareAndSetPlain(recv, "foo", "bar");
}
assertEquals(success, true, "weakCompareAndSetPlain String");
String x = (String) vh.get(recv);
assertEquals(x, "bar", "weakCompareAndSetPlain String value");
}
{
boolean success = false;
for (int c = 0; c < WEAK_ATTEMPTS && !success; c++) {
success = vh.weakCompareAndSetAcquire(recv, "bar", "foo");
}
assertEquals(success, true, "weakCompareAndSetAcquire String");
String x = (String) vh.get(recv);
assertEquals(x, "foo", "weakCompareAndSetAcquire String");
}
{
boolean success = false;
for (int c = 0; c < WEAK_ATTEMPTS && !success; c++) {
success = vh.weakCompareAndSetRelease(recv, "foo", "bar");
}
assertEquals(success, true, "weakCompareAndSetRelease String");
String x = (String) vh.get(recv);
assertEquals(x, "bar", "weakCompareAndSetRelease String");
}
{
boolean success = false;
for (int c = 0; c < WEAK_ATTEMPTS && !success; c++) {
success = vh.weakCompareAndSet(recv, "bar", "foo");
}
assertEquals(success, true, "weakCompareAndSet String");
String x = (String) vh.get(recv);
assertEquals(x, "foo", "weakCompareAndSet String value");
}
// Compare set and get
{
vh.set(recv, "foo");
String o = (String) vh.getAndSet(recv, "bar");
assertEquals(o, "foo", "getAndSet String");
String x = (String) vh.get(recv);
assertEquals(x, "bar", "getAndSet String value");
}
{
vh.set(recv, "foo");
String o = (String) vh.getAndSetAcquire(recv, "bar");
assertEquals(o, "foo", "getAndSetAcquire String");
String x = (String) vh.get(recv);
assertEquals(x, "bar", "getAndSetAcquire String value");
}
{
vh.set(recv, "foo");
String o = (String) vh.getAndSetRelease(recv, "bar");
assertEquals(o, "foo", "getAndSetRelease String");
String x = (String) vh.get(recv);
assertEquals(x, "bar", "getAndSetRelease String value");
}
}
static void testInstanceFieldUnsupported(VarHandleTestAccessString recv, VarHandle vh) {
checkUOE(() -> {
String o = (String) vh.getAndAdd(recv, "foo");
});
checkUOE(() -> {
String o = (String) vh.getAndAddAcquire(recv, "foo");
});
checkUOE(() -> {
String o = (String) vh.getAndAddRelease(recv, "foo");
});
checkUOE(() -> {
String o = (String) vh.getAndBitwiseOr(recv, "foo");
});
checkUOE(() -> {
String o = (String) vh.getAndBitwiseOrAcquire(recv, "foo");
});
checkUOE(() -> {
String o = (String) vh.getAndBitwiseOrRelease(recv, "foo");
});
checkUOE(() -> {
String o = (String) vh.getAndBitwiseAnd(recv, "foo");
});
checkUOE(() -> {
String o = (String) vh.getAndBitwiseAndAcquire(recv, "foo");
});
checkUOE(() -> {
String o = (String) vh.getAndBitwiseAndRelease(recv, "foo");
});
checkUOE(() -> {
String o = (String) vh.getAndBitwiseXor(recv, "foo");
});
checkUOE(() -> {
String o = (String) vh.getAndBitwiseXorAcquire(recv, "foo");
});
checkUOE(() -> {
String o = (String) vh.getAndBitwiseXorRelease(recv, "foo");
});
}
static void testStaticField(VarHandle vh) {
// Plain
{
vh.set("foo");
String x = (String) vh.get();
assertEquals(x, "foo", "set String value");
}
// Volatile
{
vh.setVolatile("bar");
String x = (String) vh.getVolatile();
assertEquals(x, "bar", "setVolatile String value");
}
// Lazy
{
vh.setRelease("foo");
String x = (String) vh.getAcquire();
assertEquals(x, "foo", "setRelease String value");
}
// Opaque
{
vh.setOpaque("bar");
String x = (String) vh.getOpaque();
assertEquals(x, "bar", "setOpaque String value");
}
vh.set("foo");
// Compare
{
boolean r = vh.compareAndSet("foo", "bar");
assertEquals(r, true, "success compareAndSet String");
String x = (String) vh.get();
assertEquals(x, "bar", "success compareAndSet String value");
}
{
boolean r = vh.compareAndSet("foo", "baz");
assertEquals(r, false, "failing compareAndSet String");
String x = (String) vh.get();
assertEquals(x, "bar", "failing compareAndSet String value");
}
{
String r = (String) vh.compareAndExchange("bar", "foo");
assertEquals(r, "bar", "success compareAndExchange String");
String x = (String) vh.get();
assertEquals(x, "foo", "success compareAndExchange String value");
}
{
String r = (String) vh.compareAndExchange("bar", "baz");
assertEquals(r, "foo", "failing compareAndExchange String");
String x = (String) vh.get();
assertEquals(x, "foo", "failing compareAndExchange String value");
}
{
String r = (String) vh.compareAndExchangeAcquire("foo", "bar");
assertEquals(r, "foo", "success compareAndExchangeAcquire String");
String x = (String) vh.get();
assertEquals(x, "bar", "success compareAndExchangeAcquire String value");
}
{
String r = (String) vh.compareAndExchangeAcquire("foo", "baz");
assertEquals(r, "bar", "failing compareAndExchangeAcquire String");
String x = (String) vh.get();
assertEquals(x, "bar", "failing compareAndExchangeAcquire String value");
}
{
String r = (String) vh.compareAndExchangeRelease("bar", "foo");
assertEquals(r, "bar", "success compareAndExchangeRelease String");
String x = (String) vh.get();
assertEquals(x, "foo", "success compareAndExchangeRelease String value");
}
{
String r = (String) vh.compareAndExchangeRelease("bar", "baz");
assertEquals(r, "foo", "failing compareAndExchangeRelease String");
String x = (String) vh.get();
assertEquals(x, "foo", "failing compareAndExchangeRelease String value");
}
{
boolean success = false;
for (int c = 0; c < WEAK_ATTEMPTS && !success; c++) {
success = vh.weakCompareAndSetPlain("foo", "bar");
}
assertEquals(success, true, "weakCompareAndSetPlain String");
String x = (String) vh.get();
assertEquals(x, "bar", "weakCompareAndSetPlain String value");
}
{
boolean success = false;
for (int c = 0; c < WEAK_ATTEMPTS && !success; c++) {
success = vh.weakCompareAndSetAcquire("bar", "foo");
}
assertEquals(success, true, "weakCompareAndSetAcquire String");
String x = (String) vh.get();
assertEquals(x, "foo", "weakCompareAndSetAcquire String");
}
{
boolean success = false;
for (int c = 0; c < WEAK_ATTEMPTS && !success; c++) {
success = vh.weakCompareAndSetRelease("foo", "bar");
}
assertEquals(success, true, "weakCompareAndSetRelease String");
String x = (String) vh.get();
assertEquals(x, "bar", "weakCompareAndSetRelease String");
}
{
boolean success = false;
for (int c = 0; c < WEAK_ATTEMPTS && !success; c++) {
success = vh.weakCompareAndSet("bar", "foo");
}
assertEquals(success, true, "weakCompareAndSet String");
String x = (String) vh.get();
assertEquals(x, "foo", "weakCompareAndSet String");
}
// Compare set and get
{
vh.set("foo");
String o = (String) vh.getAndSet("bar");
assertEquals(o, "foo", "getAndSet String");
String x = (String) vh.get();
assertEquals(x, "bar", "getAndSet String value");
}
{
vh.set("foo");
String o = (String) vh.getAndSetAcquire("bar");
assertEquals(o, "foo", "getAndSetAcquire String");
String x = (String) vh.get();
assertEquals(x, "bar", "getAndSetAcquire String value");
}
{
vh.set("foo");
String o = (String) vh.getAndSetRelease("bar");
assertEquals(o, "foo", "getAndSetRelease String");
String x = (String) vh.get();
assertEquals(x, "bar", "getAndSetRelease String value");
}
}
static void testStaticFieldUnsupported(VarHandle vh) {
checkUOE(() -> {
String o = (String) vh.getAndAdd("foo");
});
checkUOE(() -> {
String o = (String) vh.getAndAddAcquire("foo");
});
checkUOE(() -> {
String o = (String) vh.getAndAddRelease("foo");
});
checkUOE(() -> {
String o = (String) vh.getAndBitwiseOr("foo");
});
checkUOE(() -> {
String o = (String) vh.getAndBitwiseOrAcquire("foo");
});
checkUOE(() -> {
String o = (String) vh.getAndBitwiseOrRelease("foo");
});
checkUOE(() -> {
String o = (String) vh.getAndBitwiseAnd("foo");
});
checkUOE(() -> {
String o = (String) vh.getAndBitwiseAndAcquire("foo");
});
checkUOE(() -> {
String o = (String) vh.getAndBitwiseAndRelease("foo");
});
checkUOE(() -> {
String o = (String) vh.getAndBitwiseXor("foo");
});
checkUOE(() -> {
String o = (String) vh.getAndBitwiseXorAcquire("foo");
});
checkUOE(() -> {
String o = (String) vh.getAndBitwiseXorRelease("foo");
});
}
static void testArray(VarHandle vh) {
String[] array = new String[10];
for (int i = 0; i < array.length; i++) {
// Plain
{
vh.set(array, i, "foo");
String x = (String) vh.get(array, i);
assertEquals(x, "foo", "get String value");
}
// Volatile
{
vh.setVolatile(array, i, "bar");
String x = (String) vh.getVolatile(array, i);
assertEquals(x, "bar", "setVolatile String value");
}
// Lazy
{
vh.setRelease(array, i, "foo");
String x = (String) vh.getAcquire(array, i);
assertEquals(x, "foo", "setRelease String value");
}
// Opaque
{
vh.setOpaque(array, i, "bar");
String x = (String) vh.getOpaque(array, i);
assertEquals(x, "bar", "setOpaque String value");
}
vh.set(array, i, "foo");
// Compare
{
boolean r = vh.compareAndSet(array, i, "foo", "bar");
assertEquals(r, true, "success compareAndSet String");
String x = (String) vh.get(array, i);
assertEquals(x, "bar", "success compareAndSet String value");
}
{
boolean r = vh.compareAndSet(array, i, "foo", "baz");
assertEquals(r, false, "failing compareAndSet String");
String x = (String) vh.get(array, i);
assertEquals(x, "bar", "failing compareAndSet String value");
}
{
String r = (String) vh.compareAndExchange(array, i, "bar", "foo");
assertEquals(r, "bar", "success compareAndExchange String");
String x = (String) vh.get(array, i);
assertEquals(x, "foo", "success compareAndExchange String value");
}
{
String r = (String) vh.compareAndExchange(array, i, "bar", "baz");
assertEquals(r, "foo", "failing compareAndExchange String");
String x = (String) vh.get(array, i);
assertEquals(x, "foo", "failing compareAndExchange String value");
}
{
String r = (String) vh.compareAndExchangeAcquire(array, i, "foo", "bar");
assertEquals(r, "foo", "success compareAndExchangeAcquire String");
String x = (String) vh.get(array, i);
assertEquals(x, "bar", "success compareAndExchangeAcquire String value");
}
{
String r = (String) vh.compareAndExchangeAcquire(array, i, "foo", "baz");
assertEquals(r, "bar", "failing compareAndExchangeAcquire String");
String x = (String) vh.get(array, i);
assertEquals(x, "bar", "failing compareAndExchangeAcquire String value");
}
{
String r = (String) vh.compareAndExchangeRelease(array, i, "bar", "foo");
assertEquals(r, "bar", "success compareAndExchangeRelease String");
String x = (String) vh.get(array, i);
assertEquals(x, "foo", "success compareAndExchangeRelease String value");
}
{
String r = (String) vh.compareAndExchangeRelease(array, i, "bar", "baz");
assertEquals(r, "foo", "failing compareAndExchangeRelease String");
String x = (String) vh.get(array, i);
assertEquals(x, "foo", "failing compareAndExchangeRelease String value");
}
{
boolean success = false;
for (int c = 0; c < WEAK_ATTEMPTS && !success; c++) {
success = vh.weakCompareAndSetPlain(array, i, "foo", "bar");
}
assertEquals(success, true, "weakCompareAndSetPlain String");
String x = (String) vh.get(array, i);
assertEquals(x, "bar", "weakCompareAndSetPlain String value");
}
{
boolean success = false;
for (int c = 0; c < WEAK_ATTEMPTS && !success; c++) {
success = vh.weakCompareAndSetAcquire(array, i, "bar", "foo");
}
assertEquals(success, true, "weakCompareAndSetAcquire String");
String x = (String) vh.get(array, i);
assertEquals(x, "foo", "weakCompareAndSetAcquire String");
}
{
boolean success = false;
for (int c = 0; c < WEAK_ATTEMPTS && !success; c++) {
success = vh.weakCompareAndSetRelease(array, i, "foo", "bar");
}
assertEquals(success, true, "weakCompareAndSetRelease String");
String x = (String) vh.get(array, i);
assertEquals(x, "bar", "weakCompareAndSetRelease String");
}
{
boolean success = false;
for (int c = 0; c < WEAK_ATTEMPTS && !success; c++) {
success = vh.weakCompareAndSet(array, i, "bar", "foo");
}
assertEquals(success, true, "weakCompareAndSet String");
String x = (String) vh.get(array, i);
assertEquals(x, "foo", "weakCompareAndSet String");
}
// Compare set and get
{
vh.set(array, i, "foo");
String o = (String) vh.getAndSet(array, i, "bar");
assertEquals(o, "foo", "getAndSet String");
String x = (String) vh.get(array, i);
assertEquals(x, "bar", "getAndSet String value");
}
{
vh.set(array, i, "foo");
String o = (String) vh.getAndSetAcquire(array, i, "bar");
assertEquals(o, "foo", "getAndSetAcquire String");
String x = (String) vh.get(array, i);
assertEquals(x, "bar", "getAndSetAcquire String value");
}
{
vh.set(array, i, "foo");
String o = (String) vh.getAndSetRelease(array, i, "bar");
assertEquals(o, "foo", "getAndSetRelease String");
String x = (String) vh.get(array, i);
assertEquals(x, "bar", "getAndSetRelease String value");
}
}
}
static void testArrayUnsupported(VarHandle vh) {
String[] array = new String[10];
int i = 0;
checkUOE(() -> {
String o = (String) vh.getAndAdd(array, i, "foo");
});
checkUOE(() -> {
String o = (String) vh.getAndAddAcquire(array, i, "foo");
});
checkUOE(() -> {
String o = (String) vh.getAndAddRelease(array, i, "foo");
});
checkUOE(() -> {
String o = (String) vh.getAndBitwiseOr(array, i, "foo");
});
checkUOE(() -> {
String o = (String) vh.getAndBitwiseOrAcquire(array, i, "foo");
});
checkUOE(() -> {
String o = (String) vh.getAndBitwiseOrRelease(array, i, "foo");
});
checkUOE(() -> {
String o = (String) vh.getAndBitwiseAnd(array, i, "foo");
});
checkUOE(() -> {
String o = (String) vh.getAndBitwiseAndAcquire(array, i, "foo");
});
checkUOE(() -> {
String o = (String) vh.getAndBitwiseAndRelease(array, i, "foo");
});
checkUOE(() -> {
String o = (String) vh.getAndBitwiseXor(array, i, "foo");
});
checkUOE(() -> {
String o = (String) vh.getAndBitwiseXorAcquire(array, i, "foo");
});
checkUOE(() -> {
String o = (String) vh.getAndBitwiseXorRelease(array, i, "foo");
});
}
static void testArrayIndexOutOfBounds(VarHandle vh) throws Throwable {
String[] array = new String[10];
for (int i : new int[]{-1, Integer.MIN_VALUE, 10, 11, Integer.MAX_VALUE}) {
final int ci = i;
checkIOOBE(() -> {
String x = (String) vh.get(array, ci);
});
checkIOOBE(() -> {
vh.set(array, ci, "foo");
});
checkIOOBE(() -> {
String x = (String) vh.getVolatile(array, ci);
});
checkIOOBE(() -> {
vh.setVolatile(array, ci, "foo");
});
checkIOOBE(() -> {
String x = (String) vh.getAcquire(array, ci);
});
checkIOOBE(() -> {
vh.setRelease(array, ci, "foo");
});
checkIOOBE(() -> {
String x = (String) vh.getOpaque(array, ci);
});
checkIOOBE(() -> {
vh.setOpaque(array, ci, "foo");
});
checkIOOBE(() -> {
boolean r = vh.compareAndSet(array, ci, "foo", "bar");
});
checkIOOBE(() -> {
String r = (String) vh.compareAndExchange(array, ci, "bar", "foo");
});
checkIOOBE(() -> {
String r = (String) vh.compareAndExchangeAcquire(array, ci, "bar", "foo");
});
checkIOOBE(() -> {
String r = (String) vh.compareAndExchangeRelease(array, ci, "bar", "foo");
});
checkIOOBE(() -> {
boolean r = vh.weakCompareAndSetPlain(array, ci, "foo", "bar");
});
checkIOOBE(() -> {
boolean r = vh.weakCompareAndSet(array, ci, "foo", "bar");
});
checkIOOBE(() -> {
boolean r = vh.weakCompareAndSetAcquire(array, ci, "foo", "bar");
});
checkIOOBE(() -> {
boolean r = vh.weakCompareAndSetRelease(array, ci, "foo", "bar");
});
checkIOOBE(() -> {
String o = (String) vh.getAndSet(array, ci, "foo");
});
checkIOOBE(() -> {
String o = (String) vh.getAndSetAcquire(array, ci, "foo");
});
checkIOOBE(() -> {
String o = (String) vh.getAndSetRelease(array, ci, "foo");
});
}
}
}