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/*
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* Copyright (c) 2015, Oracle and/or its affiliates. All rights reserved.
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* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
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*
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* This code is free software; you can redistribute it and/or modify it
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* under the terms of the GNU General Public License version 2 only, as
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* published by the Free Software Foundation.
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*
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* This code is distributed in the hope that it will be useful, but WITHOUT
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* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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* version 2 for more details (a copy is included in the LICENSE file that
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* accompanied this code).
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*
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* You should have received a copy of the GNU General Public License version
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* 2 along with this work; if not, write to the Free Software Foundation,
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* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
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*
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* Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
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* or visit www.oracle.com if you need additional information or have any
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* questions.
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*/
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/*
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* @test
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* @run testng/othervm -Diters=10 -Xint VarHandleTestAccessShort
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* @run testng/othervm -Diters=20000 -XX:TieredStopAtLevel=1 VarHandleTestAccessShort
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* @run testng/othervm -Diters=20000 VarHandleTestAccessShort
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* @run testng/othervm -Diters=20000 -XX:-TieredCompilation VarHandleTestAccessShort
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*/
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import org.testng.annotations.BeforeClass;
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import org.testng.annotations.DataProvider;
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import org.testng.annotations.Test;
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import java.lang.invoke.MethodHandles;
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import java.lang.invoke.VarHandle;
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import java.util.ArrayList;
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import java.util.Arrays;
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import java.util.List;
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import static org.testng.Assert.*;
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public class VarHandleTestAccessShort extends VarHandleBaseTest {
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static final short static_final_v = (short)1;
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static short static_v;
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final short final_v = (short)1;
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short v;
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VarHandle vhFinalField;
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VarHandle vhField;
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VarHandle vhStaticField;
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VarHandle vhStaticFinalField;
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VarHandle vhArray;
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@BeforeClass
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public void setup() throws Exception {
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vhFinalField = MethodHandles.lookup().findVarHandle(
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VarHandleTestAccessShort.class, "final_v", short.class);
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vhField = MethodHandles.lookup().findVarHandle(
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VarHandleTestAccessShort.class, "v", short.class);
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vhStaticFinalField = MethodHandles.lookup().findStaticVarHandle(
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VarHandleTestAccessShort.class, "static_final_v", short.class);
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vhStaticField = MethodHandles.lookup().findStaticVarHandle(
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VarHandleTestAccessShort.class, "static_v", short.class);
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vhArray = MethodHandles.arrayElementVarHandle(short[].class);
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}
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@DataProvider
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public Object[][] varHandlesProvider() throws Exception {
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List<VarHandle> vhs = new ArrayList<>();
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vhs.add(vhField);
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vhs.add(vhStaticField);
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vhs.add(vhArray);
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return vhs.stream().map(tc -> new Object[]{tc}).toArray(Object[][]::new);
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}
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@Test(dataProvider = "varHandlesProvider")
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public void testIsAccessModeSupported(VarHandle vh) {
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assertTrue(vh.isAccessModeSupported(VarHandle.AccessMode.get));
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assertTrue(vh.isAccessModeSupported(VarHandle.AccessMode.set));
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assertTrue(vh.isAccessModeSupported(VarHandle.AccessMode.getVolatile));
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assertTrue(vh.isAccessModeSupported(VarHandle.AccessMode.setVolatile));
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assertTrue(vh.isAccessModeSupported(VarHandle.AccessMode.getAcquire));
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assertTrue(vh.isAccessModeSupported(VarHandle.AccessMode.setRelease));
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assertTrue(vh.isAccessModeSupported(VarHandle.AccessMode.getOpaque));
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assertTrue(vh.isAccessModeSupported(VarHandle.AccessMode.setOpaque));
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assertFalse(vh.isAccessModeSupported(VarHandle.AccessMode.compareAndSet));
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assertFalse(vh.isAccessModeSupported(VarHandle.AccessMode.compareAndExchangeVolatile));
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assertFalse(vh.isAccessModeSupported(VarHandle.AccessMode.compareAndExchangeAcquire));
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assertFalse(vh.isAccessModeSupported(VarHandle.AccessMode.compareAndExchangeRelease));
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assertFalse(vh.isAccessModeSupported(VarHandle.AccessMode.weakCompareAndSet));
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assertFalse(vh.isAccessModeSupported(VarHandle.AccessMode.weakCompareAndSetAcquire));
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assertFalse(vh.isAccessModeSupported(VarHandle.AccessMode.weakCompareAndSetRelease));
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assertFalse(vh.isAccessModeSupported(VarHandle.AccessMode.weakCompareAndSetRelease));
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assertFalse(vh.isAccessModeSupported(VarHandle.AccessMode.getAndSet));
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assertFalse(vh.isAccessModeSupported(VarHandle.AccessMode.getAndAdd));
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assertFalse(vh.isAccessModeSupported(VarHandle.AccessMode.addAndGet));
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}
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@DataProvider
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public Object[][] typesProvider() throws Exception {
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List<Object[]> types = new ArrayList<>();
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types.add(new Object[] {vhField, Arrays.asList(VarHandleTestAccessShort.class)});
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types.add(new Object[] {vhStaticField, Arrays.asList()});
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types.add(new Object[] {vhArray, Arrays.asList(short[].class, int.class)});
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return types.stream().toArray(Object[][]::new);
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}
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@Test(dataProvider = "typesProvider")
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public void testTypes(VarHandle vh, List<Class<?>> pts) {
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assertEquals(vh.varType(), short.class);
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assertEquals(vh.coordinateTypes(), pts);
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testTypes(vh);
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}
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@Test
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public void testLookupInstanceToStatic() {
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checkIAE("Lookup of static final field to instance final field", () -> {
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MethodHandles.lookup().findStaticVarHandle(
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VarHandleTestAccessShort.class, "final_v", short.class);
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});
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checkIAE("Lookup of static field to instance field", () -> {
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MethodHandles.lookup().findStaticVarHandle(
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VarHandleTestAccessShort.class, "v", short.class);
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});
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}
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@Test
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public void testLookupStaticToInstance() {
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checkIAE("Lookup of instance final field to static final field", () -> {
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MethodHandles.lookup().findVarHandle(
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VarHandleTestAccessShort.class, "static_final_v", short.class);
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});
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checkIAE("Lookup of instance field to static field", () -> {
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vhStaticField = MethodHandles.lookup().findVarHandle(
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VarHandleTestAccessShort.class, "static_v", short.class);
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});
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}
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@DataProvider
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public Object[][] accessTestCaseProvider() throws Exception {
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List<AccessTestCase<?>> cases = new ArrayList<>();
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cases.add(new VarHandleAccessTestCase("Instance final field",
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vhFinalField, vh -> testInstanceFinalField(this, vh)));
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cases.add(new VarHandleAccessTestCase("Instance final field unsupported",
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vhFinalField, vh -> testInstanceFinalFieldUnsupported(this, vh),
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false));
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cases.add(new VarHandleAccessTestCase("Static final field",
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vhStaticFinalField, VarHandleTestAccessShort::testStaticFinalField));
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cases.add(new VarHandleAccessTestCase("Static final field unsupported",
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vhStaticFinalField, VarHandleTestAccessShort::testStaticFinalFieldUnsupported,
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false));
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cases.add(new VarHandleAccessTestCase("Instance field",
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vhField, vh -> testInstanceField(this, vh)));
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cases.add(new VarHandleAccessTestCase("Instance field unsupported",
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vhField, vh -> testInstanceFieldUnsupported(this, vh),
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false));
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cases.add(new VarHandleAccessTestCase("Static field",
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vhStaticField, VarHandleTestAccessShort::testStaticField));
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cases.add(new VarHandleAccessTestCase("Static field unsupported",
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vhStaticField, VarHandleTestAccessShort::testStaticFieldUnsupported,
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false));
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cases.add(new VarHandleAccessTestCase("Array",
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vhArray, VarHandleTestAccessShort::testArray));
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cases.add(new VarHandleAccessTestCase("Array unsupported",
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vhArray, VarHandleTestAccessShort::testArrayUnsupported,
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false));
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cases.add(new VarHandleAccessTestCase("Array index out of bounds",
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vhArray, VarHandleTestAccessShort::testArrayIndexOutOfBounds,
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false));
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// Work around issue with jtreg summary reporting which truncates
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// the String result of Object.toString to 30 characters, hence
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// the first dummy argument
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return cases.stream().map(tc -> new Object[]{tc.toString(), tc}).toArray(Object[][]::new);
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}
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@Test(dataProvider = "accessTestCaseProvider")
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public <T> void testAccess(String desc, AccessTestCase<T> atc) throws Throwable {
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T t = atc.get();
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int iters = atc.requiresLoop() ? ITERS : 1;
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for (int c = 0; c < iters; c++) {
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atc.testAccess(t);
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}
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}
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static void testInstanceFinalField(VarHandleTestAccessShort recv, VarHandle vh) {
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// Plain
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{
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short x = (short) vh.get(recv);
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assertEquals(x, (short)1, "get short value");
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}
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// Volatile
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{
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short x = (short) vh.getVolatile(recv);
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assertEquals(x, (short)1, "getVolatile short value");
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}
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// Lazy
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{
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short x = (short) vh.getAcquire(recv);
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assertEquals(x, (short)1, "getRelease short value");
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}
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// Opaque
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{
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short x = (short) vh.getOpaque(recv);
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assertEquals(x, (short)1, "getOpaque short value");
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}
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}
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static void testInstanceFinalFieldUnsupported(VarHandleTestAccessShort recv, VarHandle vh) {
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checkUOE(() -> {
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vh.set(recv, (short)2);
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});
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checkUOE(() -> {
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vh.setVolatile(recv, (short)2);
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});
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checkUOE(() -> {
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vh.setRelease(recv, (short)2);
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});
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checkUOE(() -> {
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vh.setOpaque(recv, (short)2);
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});
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checkUOE(() -> {
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boolean r = vh.compareAndSet(recv, (short)1, (short)2);
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});
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checkUOE(() -> {
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short r = (short) vh.compareAndExchangeVolatile(recv, (short)1, (short)2);
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});
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checkUOE(() -> {
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short r = (short) vh.compareAndExchangeAcquire(recv, (short)1, (short)2);
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});
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checkUOE(() -> {
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short r = (short) vh.compareAndExchangeRelease(recv, (short)1, (short)2);
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});
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checkUOE(() -> {
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boolean r = vh.weakCompareAndSet(recv, (short)1, (short)2);
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});
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checkUOE(() -> {
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boolean r = vh.weakCompareAndSetAcquire(recv, (short)1, (short)2);
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});
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checkUOE(() -> {
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boolean r = vh.weakCompareAndSetRelease(recv, (short)1, (short)2);
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});
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checkUOE(() -> {
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short o = (short) vh.getAndAdd(recv, (short)1);
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});
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checkUOE(() -> {
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short o = (short) vh.addAndGet(recv, (short)1);
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});
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}
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static void testStaticFinalField(VarHandle vh) {
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// Plain
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{
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short x = (short) vh.get();
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assertEquals(x, (short)1, "get short value");
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}
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// Volatile
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{
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short x = (short) vh.getVolatile();
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assertEquals(x, (short)1, "getVolatile short value");
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}
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// Lazy
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{
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short x = (short) vh.getAcquire();
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assertEquals(x, (short)1, "getRelease short value");
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}
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// Opaque
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{
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short x = (short) vh.getOpaque();
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assertEquals(x, (short)1, "getOpaque short value");
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}
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}
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static void testStaticFinalFieldUnsupported(VarHandle vh) {
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checkUOE(() -> {
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vh.set((short)2);
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});
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checkUOE(() -> {
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vh.setVolatile((short)2);
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});
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checkUOE(() -> {
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vh.setRelease((short)2);
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});
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checkUOE(() -> {
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vh.setOpaque((short)2);
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});
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checkUOE(() -> {
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boolean r = vh.compareAndSet((short)1, (short)2);
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});
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checkUOE(() -> {
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short r = (short) vh.compareAndExchangeVolatile((short)1, (short)2);
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});
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checkUOE(() -> {
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short r = (short) vh.compareAndExchangeAcquire((short)1, (short)2);
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});
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checkUOE(() -> {
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short r = (short) vh.compareAndExchangeRelease((short)1, (short)2);
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});
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checkUOE(() -> {
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boolean r = vh.weakCompareAndSet((short)1, (short)2);
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});
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checkUOE(() -> {
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boolean r = vh.weakCompareAndSetAcquire((short)1, (short)2);
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});
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checkUOE(() -> {
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boolean r = vh.weakCompareAndSetRelease((short)1, (short)2);
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});
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checkUOE(() -> {
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short o = (short) vh.getAndAdd((short)1);
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});
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checkUOE(() -> {
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short o = (short) vh.addAndGet((short)1);
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});
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}
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static void testInstanceField(VarHandleTestAccessShort recv, VarHandle vh) {
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// Plain
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{
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vh.set(recv, (short)1);
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short x = (short) vh.get(recv);
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assertEquals(x, (short)1, "set short value");
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}
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// Volatile
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{
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vh.setVolatile(recv, (short)2);
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short x = (short) vh.getVolatile(recv);
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assertEquals(x, (short)2, "setVolatile short value");
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}
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// Lazy
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{
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vh.setRelease(recv, (short)1);
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short x = (short) vh.getAcquire(recv);
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assertEquals(x, (short)1, "setRelease short value");
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}
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// Opaque
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{
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vh.setOpaque(recv, (short)2);
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short x = (short) vh.getOpaque(recv);
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assertEquals(x, (short)2, "setOpaque short value");
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}
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}
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static void testInstanceFieldUnsupported(VarHandleTestAccessShort recv, VarHandle vh) {
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checkUOE(() -> {
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boolean r = vh.compareAndSet(recv, (short)1, (short)2);
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});
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|
421 |
checkUOE(() -> {
|
|
422 |
short r = (short) vh.compareAndExchangeVolatile(recv, (short)1, (short)2);
|
|
423 |
});
|
|
424 |
|
|
425 |
checkUOE(() -> {
|
|
426 |
short r = (short) vh.compareAndExchangeAcquire(recv, (short)1, (short)2);
|
|
427 |
});
|
|
428 |
|
|
429 |
checkUOE(() -> {
|
|
430 |
short r = (short) vh.compareAndExchangeRelease(recv, (short)1, (short)2);
|
|
431 |
});
|
|
432 |
|
|
433 |
checkUOE(() -> {
|
|
434 |
boolean r = vh.weakCompareAndSet(recv, (short)1, (short)2);
|
|
435 |
});
|
|
436 |
|
|
437 |
checkUOE(() -> {
|
|
438 |
boolean r = vh.weakCompareAndSetAcquire(recv, (short)1, (short)2);
|
|
439 |
});
|
|
440 |
|
|
441 |
checkUOE(() -> {
|
|
442 |
boolean r = vh.weakCompareAndSetRelease(recv, (short)1, (short)2);
|
|
443 |
});
|
|
444 |
|
|
445 |
checkUOE(() -> {
|
|
446 |
short o = (short) vh.getAndAdd(recv, (short)1);
|
|
447 |
});
|
|
448 |
|
|
449 |
checkUOE(() -> {
|
|
450 |
short o = (short) vh.addAndGet(recv, (short)1);
|
|
451 |
});
|
|
452 |
}
|
|
453 |
|
|
454 |
|
|
455 |
static void testStaticField(VarHandle vh) {
|
|
456 |
// Plain
|
|
457 |
{
|
|
458 |
vh.set((short)1);
|
|
459 |
short x = (short) vh.get();
|
|
460 |
assertEquals(x, (short)1, "set short value");
|
|
461 |
}
|
|
462 |
|
|
463 |
|
|
464 |
// Volatile
|
|
465 |
{
|
|
466 |
vh.setVolatile((short)2);
|
|
467 |
short x = (short) vh.getVolatile();
|
|
468 |
assertEquals(x, (short)2, "setVolatile short value");
|
|
469 |
}
|
|
470 |
|
|
471 |
// Lazy
|
|
472 |
{
|
|
473 |
vh.setRelease((short)1);
|
|
474 |
short x = (short) vh.getAcquire();
|
|
475 |
assertEquals(x, (short)1, "setRelease short value");
|
|
476 |
}
|
|
477 |
|
|
478 |
// Opaque
|
|
479 |
{
|
|
480 |
vh.setOpaque((short)2);
|
|
481 |
short x = (short) vh.getOpaque();
|
|
482 |
assertEquals(x, (short)2, "setOpaque short value");
|
|
483 |
}
|
|
484 |
|
|
485 |
|
|
486 |
}
|
|
487 |
|
|
488 |
static void testStaticFieldUnsupported(VarHandle vh) {
|
|
489 |
checkUOE(() -> {
|
|
490 |
boolean r = vh.compareAndSet((short)1, (short)2);
|
|
491 |
});
|
|
492 |
|
|
493 |
checkUOE(() -> {
|
|
494 |
short r = (short) vh.compareAndExchangeVolatile((short)1, (short)2);
|
|
495 |
});
|
|
496 |
|
|
497 |
checkUOE(() -> {
|
|
498 |
short r = (short) vh.compareAndExchangeAcquire((short)1, (short)2);
|
|
499 |
});
|
|
500 |
|
|
501 |
checkUOE(() -> {
|
|
502 |
short r = (short) vh.compareAndExchangeRelease((short)1, (short)2);
|
|
503 |
});
|
|
504 |
|
|
505 |
checkUOE(() -> {
|
|
506 |
boolean r = vh.weakCompareAndSet((short)1, (short)2);
|
|
507 |
});
|
|
508 |
|
|
509 |
checkUOE(() -> {
|
|
510 |
boolean r = vh.weakCompareAndSetAcquire((short)1, (short)2);
|
|
511 |
});
|
|
512 |
|
|
513 |
checkUOE(() -> {
|
|
514 |
boolean r = vh.weakCompareAndSetRelease((short)1, (short)2);
|
|
515 |
});
|
|
516 |
|
|
517 |
checkUOE(() -> {
|
|
518 |
short o = (short) vh.getAndAdd((short)1);
|
|
519 |
});
|
|
520 |
|
|
521 |
checkUOE(() -> {
|
|
522 |
short o = (short) vh.addAndGet((short)1);
|
|
523 |
});
|
|
524 |
}
|
|
525 |
|
|
526 |
|
|
527 |
static void testArray(VarHandle vh) {
|
|
528 |
short[] array = new short[10];
|
|
529 |
|
|
530 |
for (int i = 0; i < array.length; i++) {
|
|
531 |
// Plain
|
|
532 |
{
|
|
533 |
vh.set(array, i, (short)1);
|
|
534 |
short x = (short) vh.get(array, i);
|
|
535 |
assertEquals(x, (short)1, "get short value");
|
|
536 |
}
|
|
537 |
|
|
538 |
|
|
539 |
// Volatile
|
|
540 |
{
|
|
541 |
vh.setVolatile(array, i, (short)2);
|
|
542 |
short x = (short) vh.getVolatile(array, i);
|
|
543 |
assertEquals(x, (short)2, "setVolatile short value");
|
|
544 |
}
|
|
545 |
|
|
546 |
// Lazy
|
|
547 |
{
|
|
548 |
vh.setRelease(array, i, (short)1);
|
|
549 |
short x = (short) vh.getAcquire(array, i);
|
|
550 |
assertEquals(x, (short)1, "setRelease short value");
|
|
551 |
}
|
|
552 |
|
|
553 |
// Opaque
|
|
554 |
{
|
|
555 |
vh.setOpaque(array, i, (short)2);
|
|
556 |
short x = (short) vh.getOpaque(array, i);
|
|
557 |
assertEquals(x, (short)2, "setOpaque short value");
|
|
558 |
}
|
|
559 |
|
|
560 |
|
|
561 |
}
|
|
562 |
}
|
|
563 |
|
|
564 |
static void testArrayUnsupported(VarHandle vh) {
|
|
565 |
short[] array = new short[10];
|
|
566 |
|
|
567 |
int i = 0;
|
|
568 |
checkUOE(() -> {
|
|
569 |
boolean r = vh.compareAndSet(array, i, (short)1, (short)2);
|
|
570 |
});
|
|
571 |
|
|
572 |
checkUOE(() -> {
|
|
573 |
short r = (short) vh.compareAndExchangeVolatile(array, i, (short)1, (short)2);
|
|
574 |
});
|
|
575 |
|
|
576 |
checkUOE(() -> {
|
|
577 |
short r = (short) vh.compareAndExchangeAcquire(array, i, (short)1, (short)2);
|
|
578 |
});
|
|
579 |
|
|
580 |
checkUOE(() -> {
|
|
581 |
short r = (short) vh.compareAndExchangeRelease(array, i, (short)1, (short)2);
|
|
582 |
});
|
|
583 |
|
|
584 |
checkUOE(() -> {
|
|
585 |
boolean r = vh.weakCompareAndSet(array, i, (short)1, (short)2);
|
|
586 |
});
|
|
587 |
|
|
588 |
checkUOE(() -> {
|
|
589 |
boolean r = vh.weakCompareAndSetAcquire(array, i, (short)1, (short)2);
|
|
590 |
});
|
|
591 |
|
|
592 |
checkUOE(() -> {
|
|
593 |
boolean r = vh.weakCompareAndSetRelease(array, i, (short)1, (short)2);
|
|
594 |
});
|
|
595 |
|
|
596 |
checkUOE(() -> {
|
|
597 |
short o = (short) vh.getAndAdd(array, i, (short)1);
|
|
598 |
});
|
|
599 |
|
|
600 |
checkUOE(() -> {
|
|
601 |
short o = (short) vh.addAndGet(array, i, (short)1);
|
|
602 |
});
|
|
603 |
}
|
|
604 |
|
|
605 |
static void testArrayIndexOutOfBounds(VarHandle vh) throws Throwable {
|
|
606 |
short[] array = new short[10];
|
|
607 |
|
|
608 |
for (int i : new int[]{-1, Integer.MIN_VALUE, 10, 11, Integer.MAX_VALUE}) {
|
|
609 |
final int ci = i;
|
|
610 |
|
|
611 |
checkIOOBE(() -> {
|
|
612 |
short x = (short) vh.get(array, ci);
|
|
613 |
});
|
|
614 |
|
|
615 |
checkIOOBE(() -> {
|
|
616 |
vh.set(array, ci, (short)1);
|
|
617 |
});
|
|
618 |
|
|
619 |
checkIOOBE(() -> {
|
|
620 |
short x = (short) vh.getVolatile(array, ci);
|
|
621 |
});
|
|
622 |
|
|
623 |
checkIOOBE(() -> {
|
|
624 |
vh.setVolatile(array, ci, (short)1);
|
|
625 |
});
|
|
626 |
|
|
627 |
checkIOOBE(() -> {
|
|
628 |
short x = (short) vh.getAcquire(array, ci);
|
|
629 |
});
|
|
630 |
|
|
631 |
checkIOOBE(() -> {
|
|
632 |
vh.setRelease(array, ci, (short)1);
|
|
633 |
});
|
|
634 |
|
|
635 |
checkIOOBE(() -> {
|
|
636 |
short x = (short) vh.getOpaque(array, ci);
|
|
637 |
});
|
|
638 |
|
|
639 |
checkIOOBE(() -> {
|
|
640 |
vh.setOpaque(array, ci, (short)1);
|
|
641 |
});
|
|
642 |
|
|
643 |
|
|
644 |
}
|
|
645 |
}
|
|
646 |
}
|
|
647 |
|