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// Copyright (c) 2022, the R8 project authors. Please see the AUTHORS file
// for details. All rights reserved. Use of this source code is governed by a
// BSD-style license that can be found in the LICENSE file.
package varhandle;
import java.lang.invoke.MethodHandles;
import java.lang.invoke.VarHandle;
public class InstanceIntField {
private int field;
private static void checkJavaLangInvokeWrongMethodTypeException(RuntimeException e) {
if (e.getClass().getCanonicalName().equals("java.lang.invoke.WrongMethodTypeException")
|| e.getMessage().equals("java.lang.invoke.WrongMethodTypeException")) {
return;
}
throw e;
}
public static void testGet(VarHandle varHandle) {
System.out.println("testGet");
InstanceIntField instance = new InstanceIntField();
varHandle.set(instance, 1);
System.out.println(varHandle.get(instance));
System.out.println((Object) varHandle.get(instance));
System.out.println((int) varHandle.get(instance));
System.out.println((long) varHandle.get(instance));
System.out.println((float) varHandle.get(instance));
System.out.println((double) varHandle.get(instance));
try {
System.out.println((boolean) varHandle.get(instance));
System.out.println("Unexpected success");
} catch (RuntimeException e) {
checkJavaLangInvokeWrongMethodTypeException(e);
}
try {
System.out.println((byte) varHandle.get(instance));
System.out.println("Unexpected success");
} catch (RuntimeException e) {
checkJavaLangInvokeWrongMethodTypeException(e);
}
try {
System.out.println((short) varHandle.get(instance));
System.out.println("Unexpected success");
} catch (RuntimeException e) {
checkJavaLangInvokeWrongMethodTypeException(e);
}
try {
System.out.println((char) varHandle.get(instance));
System.out.println("Unexpected success");
} catch (RuntimeException e) {
checkJavaLangInvokeWrongMethodTypeException(e);
}
try {
System.out.println((String) varHandle.get(instance));
System.out.println("Unexpected success");
} catch (RuntimeException e) {
checkJavaLangInvokeWrongMethodTypeException(e);
}
}
public static void testGetVolatile(VarHandle varHandle) {
System.out.println("testGetVolatile");
InstanceIntField instance = new InstanceIntField();
varHandle.set(instance, 1);
System.out.println(varHandle.getVolatile(instance));
System.out.println((Object) varHandle.getVolatile(instance));
System.out.println((int) varHandle.getVolatile(instance));
System.out.println((long) varHandle.getVolatile(instance));
System.out.println((float) varHandle.getVolatile(instance));
System.out.println((double) varHandle.getVolatile(instance));
try {
System.out.println((boolean) varHandle.getVolatile(instance));
System.out.println("Unexpected success");
} catch (RuntimeException e) {
checkJavaLangInvokeWrongMethodTypeException(e);
}
try {
System.out.println((byte) varHandle.getVolatile(instance));
System.out.println("Unexpected success");
} catch (RuntimeException e) {
checkJavaLangInvokeWrongMethodTypeException(e);
}
try {
System.out.println((short) varHandle.getVolatile(instance));
System.out.println("Unexpected success");
} catch (RuntimeException e) {
checkJavaLangInvokeWrongMethodTypeException(e);
}
try {
System.out.println((char) varHandle.getVolatile(instance));
System.out.println("Unexpected success");
} catch (RuntimeException e) {
checkJavaLangInvokeWrongMethodTypeException(e);
}
try {
System.out.println((String) varHandle.getVolatile(instance));
System.out.println("Unexpected success");
} catch (RuntimeException e) {
checkJavaLangInvokeWrongMethodTypeException(e);
}
}
public static void testSet(VarHandle varHandle) {
System.out.println("testSet");
InstanceIntField instance = new InstanceIntField();
System.out.println((int) varHandle.get(instance));
// int and Integer values.
varHandle.set(instance, (int) 1);
System.out.println((int) varHandle.get(instance));
varHandle.set(instance, Integer.valueOf(2));
System.out.println(varHandle.get(instance));
// int and Integer compatible values.
varHandle.set(instance, (byte) 3);
System.out.println((int) varHandle.get(instance));
varHandle.set(instance, Byte.valueOf((byte) 4));
System.out.println((int) varHandle.get(instance));
varHandle.set(instance, '0');
System.out.println((int) varHandle.get(instance));
varHandle.set(instance, Character.valueOf('1'));
System.out.println((int) varHandle.get(instance));
varHandle.set(instance, (short) 5);
System.out.println((int) varHandle.get(instance));
varHandle.set(instance, Short.valueOf((short) 6));
System.out.println((int) varHandle.get(instance));
// int and Integer non-compatible values.
try {
varHandle.set(instance, true);
} catch (RuntimeException e) {
checkJavaLangInvokeWrongMethodTypeException(e);
System.out.println(varHandle.get(instance));
}
try {
varHandle.set(instance, 3L);
} catch (RuntimeException e) {
checkJavaLangInvokeWrongMethodTypeException(e);
System.out.println(varHandle.get(instance));
}
try {
varHandle.set(instance, Long.valueOf(3));
} catch (RuntimeException e) {
checkJavaLangInvokeWrongMethodTypeException(e);
System.out.println(varHandle.get(instance));
}
try {
varHandle.set(instance, "3");
} catch (RuntimeException e) {
checkJavaLangInvokeWrongMethodTypeException(e);
System.out.println(varHandle.get(instance));
}
try {
varHandle.set(instance, 3.0f);
} catch (RuntimeException e) {
checkJavaLangInvokeWrongMethodTypeException(e);
System.out.println(varHandle.get(instance));
}
try {
varHandle.set(instance, 3.0);
} catch (RuntimeException e) {
checkJavaLangInvokeWrongMethodTypeException(e);
System.out.println(varHandle.get(instance));
}
}
public static void testSetVolatile(VarHandle varHandle) {
System.out.println("testSetVolatile");
InstanceIntField instance = new InstanceIntField();
System.out.println((int) varHandle.get(instance));
// int and Integer values.
varHandle.setVolatile(instance, (int) 1);
System.out.println((int) varHandle.get(instance));
varHandle.setVolatile(instance, Integer.valueOf(2));
System.out.println(varHandle.get(instance));
// int and Integer compatible values.
varHandle.setVolatile(instance, (byte) 3);
System.out.println((int) varHandle.get(instance));
varHandle.setVolatile(instance, Byte.valueOf((byte) 4));
System.out.println((int) varHandle.get(instance));
varHandle.setVolatile(instance, '0');
System.out.println((int) varHandle.get(instance));
varHandle.setVolatile(instance, Character.valueOf('1'));
System.out.println((int) varHandle.get(instance));
varHandle.setVolatile(instance, (short) 5);
System.out.println((int) varHandle.get(instance));
varHandle.setVolatile(instance, Short.valueOf((short) 6));
System.out.println((int) varHandle.get(instance));
// int and Integer non-compatible values.
try {
varHandle.setVolatile(instance, true);
} catch (RuntimeException e) {
checkJavaLangInvokeWrongMethodTypeException(e);
System.out.println(varHandle.get(instance));
}
try {
varHandle.setVolatile(instance, 3L);
} catch (RuntimeException e) {
checkJavaLangInvokeWrongMethodTypeException(e);
System.out.println(varHandle.get(instance));
}
try {
varHandle.setVolatile(instance, Long.valueOf(3));
} catch (RuntimeException e) {
checkJavaLangInvokeWrongMethodTypeException(e);
System.out.println(varHandle.get(instance));
}
try {
varHandle.setVolatile(instance, "3");
} catch (RuntimeException e) {
checkJavaLangInvokeWrongMethodTypeException(e);
System.out.println(varHandle.get(instance));
}
try {
varHandle.setVolatile(instance, 3.0f);
} catch (RuntimeException e) {
checkJavaLangInvokeWrongMethodTypeException(e);
System.out.println(varHandle.get(instance));
}
try {
varHandle.setVolatile(instance, 3.0);
} catch (RuntimeException e) {
checkJavaLangInvokeWrongMethodTypeException(e);
System.out.println(varHandle.get(instance));
}
}
public static void testSetRelease(VarHandle varHandle) {
System.out.println("testSetRelease");
InstanceIntField instance = new InstanceIntField();
System.out.println((int) varHandle.get(instance));
// int and Integer values.
varHandle.setRelease(instance, (int) 1);
System.out.println((int) varHandle.get(instance));
varHandle.setRelease(instance, Integer.valueOf(2));
System.out.println(varHandle.get(instance));
// int and Integer compatible values.
varHandle.setRelease(instance, (byte) 3);
System.out.println((int) varHandle.get(instance));
varHandle.setRelease(instance, Byte.valueOf((byte) 4));
System.out.println((int) varHandle.get(instance));
varHandle.setRelease(instance, '0');
System.out.println((int) varHandle.get(instance));
varHandle.setRelease(instance, Character.valueOf('1'));
System.out.println((int) varHandle.get(instance));
varHandle.setRelease(instance, (short) 5);
System.out.println((int) varHandle.get(instance));
varHandle.setRelease(instance, Short.valueOf((short) 6));
System.out.println((int) varHandle.get(instance));
// int and Integer non-compatible values.
try {
varHandle.setRelease(instance, true);
} catch (RuntimeException e) {
checkJavaLangInvokeWrongMethodTypeException(e);
System.out.println(varHandle.get(instance));
}
try {
varHandle.setRelease(instance, 3L);
} catch (RuntimeException e) {
checkJavaLangInvokeWrongMethodTypeException(e);
System.out.println(varHandle.get(instance));
}
try {
varHandle.setRelease(instance, Long.valueOf(3));
} catch (RuntimeException e) {
checkJavaLangInvokeWrongMethodTypeException(e);
System.out.println(varHandle.get(instance));
}
try {
varHandle.setRelease(instance, "3");
} catch (RuntimeException e) {
checkJavaLangInvokeWrongMethodTypeException(e);
System.out.println(varHandle.get(instance));
}
try {
varHandle.setRelease(instance, 3.0f);
} catch (RuntimeException e) {
checkJavaLangInvokeWrongMethodTypeException(e);
System.out.println(varHandle.get(instance));
}
try {
varHandle.setRelease(instance, 3.0);
} catch (RuntimeException e) {
checkJavaLangInvokeWrongMethodTypeException(e);
System.out.println(varHandle.get(instance));
}
}
public static void testCompareAndSet(VarHandle varHandle) {
System.out.println("testCompareAndSet");
InstanceIntField instance = new InstanceIntField();
// int and Integer values.
varHandle.compareAndSet(instance, 1, 2);
System.out.println((int) varHandle.get(instance));
varHandle.compareAndSet(instance, 0, 1);
System.out.println((int) varHandle.get(instance));
varHandle.compareAndSet(instance, Integer.valueOf(1), 2);
System.out.println(varHandle.get(instance));
varHandle.compareAndSet(instance, 2, Integer.valueOf(3));
System.out.println(varHandle.get(instance));
varHandle.compareAndSet(instance, Integer.valueOf(3), Integer.valueOf(4));
System.out.println(varHandle.get(instance));
// int and Integer compatible values.
varHandle.compareAndSet(instance, (byte) 4, 5);
System.out.println(varHandle.get(instance));
varHandle.compareAndSet(instance, 5, (byte) 6);
System.out.println(varHandle.get(instance));
varHandle.compareAndSet(instance, (byte) 6, (byte) 7);
System.out.println(varHandle.get(instance));
varHandle.compareAndSet(instance, Byte.valueOf((byte) 7), (byte) 8);
System.out.println(varHandle.get(instance));
varHandle.compareAndSet(instance, (byte) 8, Byte.valueOf((byte) 9));
System.out.println(varHandle.get(instance));
varHandle.compareAndSet(instance, Byte.valueOf((byte) 9), Byte.valueOf((byte) 10));
System.out.println(varHandle.get(instance));
varHandle.compareAndSet(instance, 10, '0');
System.out.println(varHandle.get(instance));
varHandle.compareAndSet(instance, '0', 49);
System.out.println(varHandle.get(instance));
varHandle.compareAndSet(instance, '1', '2');
System.out.println(varHandle.get(instance));
varHandle.compareAndSet(instance, (byte) 50, '3');
System.out.println(varHandle.get(instance));
varHandle.compareAndSet(instance, '3', (byte) 52);
System.out.println(varHandle.get(instance));
varHandle.compareAndSet(instance, '4', '5');
System.out.println(varHandle.get(instance));
// int and Integer non-compatible values.
try {
varHandle.compareAndSet(instance, 6L, 7L);
} catch (RuntimeException e) {
checkJavaLangInvokeWrongMethodTypeException(e);
System.out.println(varHandle.get(instance));
}
try {
varHandle.compareAndSet(instance, 6L, 7);
} catch (RuntimeException e) {
checkJavaLangInvokeWrongMethodTypeException(e);
System.out.println(varHandle.get(instance));
}
try {
varHandle.compareAndSet(instance, 6, Long.valueOf(7));
} catch (RuntimeException e) {
checkJavaLangInvokeWrongMethodTypeException(e);
System.out.println(varHandle.get(instance));
}
try {
varHandle.compareAndSet(instance, Long.valueOf(6), 7);
} catch (RuntimeException e) {
checkJavaLangInvokeWrongMethodTypeException(e);
System.out.println(varHandle.get(instance));
}
try {
varHandle.compareAndSet(instance, Long.valueOf(6), Long.valueOf(7));
} catch (RuntimeException e) {
checkJavaLangInvokeWrongMethodTypeException(e);
System.out.println(varHandle.get(instance));
}
try {
varHandle.compareAndSet(instance, 6, 7.0f);
} catch (RuntimeException e) {
checkJavaLangInvokeWrongMethodTypeException(e);
System.out.println(varHandle.get(instance));
}
try {
varHandle.compareAndSet(instance, 6.0f, 7);
} catch (RuntimeException e) {
checkJavaLangInvokeWrongMethodTypeException(e);
System.out.println(varHandle.get(instance));
}
try {
varHandle.compareAndSet(instance, 6.0f, 7.0f);
} catch (RuntimeException e) {
checkJavaLangInvokeWrongMethodTypeException(e);
System.out.println(varHandle.get(instance));
}
try {
varHandle.compareAndSet(instance, 6, 7.0);
} catch (RuntimeException e) {
checkJavaLangInvokeWrongMethodTypeException(e);
System.out.println(varHandle.get(instance));
}
try {
varHandle.compareAndSet(instance, 6.0, 7);
} catch (RuntimeException e) {
checkJavaLangInvokeWrongMethodTypeException(e);
System.out.println(varHandle.get(instance));
}
try {
varHandle.compareAndSet(instance, 6.0, 7.0);
} catch (RuntimeException e) {
checkJavaLangInvokeWrongMethodTypeException(e);
System.out.println(varHandle.get(instance));
}
try {
varHandle.compareAndSet(instance, 6, "7");
} catch (RuntimeException e) {
checkJavaLangInvokeWrongMethodTypeException(e);
System.out.println(varHandle.get(instance));
}
try {
varHandle.compareAndSet(instance, "6", 7);
} catch (RuntimeException e) {
checkJavaLangInvokeWrongMethodTypeException(e);
System.out.println(varHandle.get(instance));
}
try {
varHandle.compareAndSet(instance, "6", "7");
} catch (RuntimeException e) {
checkJavaLangInvokeWrongMethodTypeException(e);
System.out.println(varHandle.get(instance));
}
}
// This test is not testing weakCompareAndSet behaviour, but assuming it behaves like
// compareAndSet, that is without any spurious failures. This is the desugaring behaviour, as
// as there is no weakCompareAndSet primitive in sun.misc.Unsafe, only compareAndSwapXXX.
public static void testWeakCompareAndSet(VarHandle varHandle) {
System.out.println("testWeakCompareAndSet");
InstanceIntField instance = new InstanceIntField();
// int and Integer values.
varHandle.weakCompareAndSet(instance, 1, 2);
System.out.println((int) varHandle.get(instance));
varHandle.weakCompareAndSet(instance, 0, 1);
System.out.println((int) varHandle.get(instance));
varHandle.weakCompareAndSet(instance, Integer.valueOf(1), 2);
System.out.println(varHandle.get(instance));
varHandle.weakCompareAndSet(instance, 2, Integer.valueOf(3));
System.out.println(varHandle.get(instance));
varHandle.weakCompareAndSet(instance, Integer.valueOf(3), Integer.valueOf(4));
System.out.println(varHandle.get(instance));
// int and Integer compatible values.
varHandle.weakCompareAndSet(instance, (byte) 4, 5);
System.out.println(varHandle.get(instance));
varHandle.weakCompareAndSet(instance, 5, (byte) 6);
System.out.println(varHandle.get(instance));
varHandle.weakCompareAndSet(instance, (byte) 6, (byte) 7);
System.out.println(varHandle.get(instance));
varHandle.weakCompareAndSet(instance, Byte.valueOf((byte) 7), (byte) 8);
System.out.println(varHandle.get(instance));
varHandle.weakCompareAndSet(instance, (byte) 8, Byte.valueOf((byte) 9));
System.out.println(varHandle.get(instance));
varHandle.weakCompareAndSet(instance, Byte.valueOf((byte) 9), Byte.valueOf((byte) 10));
System.out.println(varHandle.get(instance));
varHandle.weakCompareAndSet(instance, 10, '0');
System.out.println(varHandle.get(instance));
varHandle.weakCompareAndSet(instance, '0', 49);
System.out.println(varHandle.get(instance));
varHandle.weakCompareAndSet(instance, '1', '2');
System.out.println(varHandle.get(instance));
varHandle.weakCompareAndSet(instance, (byte) 50, '3');
System.out.println(varHandle.get(instance));
varHandle.weakCompareAndSet(instance, '3', (byte) 52);
System.out.println(varHandle.get(instance));
varHandle.weakCompareAndSet(instance, '4', '5');
System.out.println(varHandle.get(instance));
// int and Integer non-compatible values.
try {
varHandle.weakCompareAndSet(instance, 6L, 7L);
} catch (RuntimeException e) {
checkJavaLangInvokeWrongMethodTypeException(e);
System.out.println(varHandle.get(instance));
}
try {
varHandle.weakCompareAndSet(instance, 6L, 7);
} catch (RuntimeException e) {
checkJavaLangInvokeWrongMethodTypeException(e);
System.out.println(varHandle.get(instance));
}
try {
varHandle.weakCompareAndSet(instance, 6, Long.valueOf(7));
} catch (RuntimeException e) {
checkJavaLangInvokeWrongMethodTypeException(e);
System.out.println(varHandle.get(instance));
}
try {
varHandle.weakCompareAndSet(instance, Long.valueOf(6), 7);
} catch (RuntimeException e) {
checkJavaLangInvokeWrongMethodTypeException(e);
System.out.println(varHandle.get(instance));
}
try {
varHandle.weakCompareAndSet(instance, Long.valueOf(6), Long.valueOf(7));
} catch (RuntimeException e) {
checkJavaLangInvokeWrongMethodTypeException(e);
System.out.println(varHandle.get(instance));
}
try {
varHandle.weakCompareAndSet(instance, 6, 7.0f);
} catch (RuntimeException e) {
checkJavaLangInvokeWrongMethodTypeException(e);
System.out.println(varHandle.get(instance));
}
try {
varHandle.weakCompareAndSet(instance, 6.0f, 7);
} catch (RuntimeException e) {
checkJavaLangInvokeWrongMethodTypeException(e);
System.out.println(varHandle.get(instance));
}
try {
varHandle.weakCompareAndSet(instance, 6.0f, 7.0f);
} catch (RuntimeException e) {
checkJavaLangInvokeWrongMethodTypeException(e);
System.out.println(varHandle.get(instance));
}
try {
varHandle.weakCompareAndSet(instance, 6, 7.0);
} catch (RuntimeException e) {
checkJavaLangInvokeWrongMethodTypeException(e);
System.out.println(varHandle.get(instance));
}
try {
varHandle.weakCompareAndSet(instance, 6.0, 7);
} catch (RuntimeException e) {
checkJavaLangInvokeWrongMethodTypeException(e);
System.out.println(varHandle.get(instance));
}
try {
varHandle.weakCompareAndSet(instance, 6.0, 7.0);
} catch (RuntimeException e) {
checkJavaLangInvokeWrongMethodTypeException(e);
System.out.println(varHandle.get(instance));
}
try {
varHandle.weakCompareAndSet(instance, 6, "7");
} catch (RuntimeException e) {
checkJavaLangInvokeWrongMethodTypeException(e);
System.out.println(varHandle.get(instance));
}
try {
varHandle.weakCompareAndSet(instance, "6", 7);
} catch (RuntimeException e) {
checkJavaLangInvokeWrongMethodTypeException(e);
System.out.println(varHandle.get(instance));
}
try {
varHandle.weakCompareAndSet(instance, "6", "7");
} catch (RuntimeException e) {
checkJavaLangInvokeWrongMethodTypeException(e);
System.out.println(varHandle.get(instance));
}
}
public static void main(String[] args) throws NoSuchFieldException, IllegalAccessException {
VarHandle varHandle =
MethodHandles.lookup().findVarHandle(InstanceIntField.class, "field", int.class);
testGet(varHandle);
testGetVolatile(varHandle);
testSet(varHandle);
testSetVolatile(varHandle);
testSetRelease(varHandle);
testCompareAndSet(varHandle);
testWeakCompareAndSet(varHandle);
}
}