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/*
* Copyright (c) 2015, 2025, 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
* @bug 8136421
* @requires vm.jvmci
* @library / /test/lib
* @library ../common/patches
* @library /testlibrary/asm
* @modules java.base/jdk.internal.misc
* @modules jdk.internal.vm.ci/jdk.vm.ci.hotspot
* jdk.internal.vm.ci/jdk.vm.ci.code
* jdk.internal.vm.ci/jdk.vm.ci.meta
* jdk.internal.vm.ci/jdk.vm.ci.runtime
*
* @build jdk.internal.vm.ci/jdk.vm.ci.hotspot.CompilerToVMHelper
* @run main/othervm -XX:+UnlockExperimentalVMOptions -XX:+EnableJVMCI
* -XX:-UseJVMCICompiler
* compiler.jvmci.compilerToVM.GetVtableIndexForInterfaceTest
*/
package compiler.jvmci.compilerToVM;
import compiler.jvmci.common.CTVMUtilities;
import compiler.jvmci.common.testcases.AbstractClass;
import compiler.jvmci.common.testcases.AnotherSingleImplementer;
import compiler.jvmci.common.testcases.AnotherSingleImplementerInterface;
import compiler.jvmci.common.testcases.DoNotExtendClass;
import compiler.jvmci.common.testcases.MultipleAbstractImplementer;
import compiler.jvmci.common.testcases.MultipleImplementersInterface;
import compiler.jvmci.common.testcases.MultipleImplementersInterfaceExtender;
import compiler.jvmci.common.testcases.SingleImplementer;
import compiler.jvmci.common.testcases.SingleImplementerInterface;
import compiler.jvmci.common.testcases.SingleSubclass;
import compiler.jvmci.common.testcases.SingleSubclassedClass;
import jdk.test.lib.Asserts;
import jdk.test.lib.Utils;
import jdk.vm.ci.hotspot.CompilerToVMHelper;
import jdk.vm.ci.hotspot.HotSpotResolvedJavaMethod;
import jdk.vm.ci.hotspot.HotSpotResolvedObjectType;
import java.lang.reflect.Method;
import java.util.HashSet;
import java.util.Set;
import java.util.stream.Stream;
public class GetVtableIndexForInterfaceTest {
private static final int INVALID_VTABLE_INDEX = -4; // see method.hpp: VtableIndexFlag
public static void main(String args[]) {
GetVtableIndexForInterfaceTest test
= new GetVtableIndexForInterfaceTest();
try {
for (TestCase tcase : createTestCases()) {
test.runTest(tcase);
}
} catch (NoSuchMethodException e) {
throw new Error("TEST BUG: can't find requested method", e);
}
}
private static Set<TestCase> createTestCases() {
Set<TestCase> result = new HashSet<>();
Stream.of(
AbstractClass.class,
SingleImplementer.class,
SingleImplementerInterface.class,
MultipleImplementersInterface.class,
MultipleImplementersInterfaceExtender.class,
SingleSubclass.class,
SingleSubclassedClass.class,
DoNotExtendClass.class,
MultipleAbstractImplementer.class
)
.forEach(Utils::ensureClassIsLoaded);
// non iface method
result.add(new TestCase(SingleImplementer.class,
SingleImplementer.class, "nonInterfaceMethod",
false, InternalError.class));
// iface method w/o default implementation
result.add(new TestCase(SingleImplementer.class,
SingleImplementerInterface.class, "interfaceMethod", false));
/* another iface which provides default implementation for the
original iface*/
result.add(new TestCase(MultipleImplementersInterfaceExtender.class,
MultipleImplementersInterface.class, "testMethod", false,
InternalError.class));
// iface method w/ default implementation
result.add(new TestCase(SingleImplementer.class,
SingleImplementerInterface.class, "defaultMethod", true));
// non iface class
result.add(new TestCase(SingleSubclass.class,
SingleSubclassedClass.class, "inheritedMethod", false,
InternalError.class));
// class not implementing iface
result.add(new TestCase(DoNotExtendClass.class,
SingleImplementerInterface.class, "defaultMethod", false,
InternalError.class));
// abstract class which doesn't implement iface
result.add(new TestCase(AbstractClass.class,
SingleImplementerInterface.class, "defaultMethod", false,
InternalError.class));
// abstract class which implements iface
result.add(new TestCase(MultipleAbstractImplementer.class,
MultipleImplementersInterface.class, "defaultMethod", true));
// class not initialized
result.add(new TestCase(AnotherSingleImplementer.class,
AnotherSingleImplementerInterface.class, "defaultMethod", false,
InternalError.class));
return result;
}
private void runTest(TestCase tcase) throws NoSuchMethodException {
System.out.println(tcase);
Method method = tcase.holder.getDeclaredMethod(tcase.methodName);
HotSpotResolvedObjectType metaspaceKlass = CompilerToVMHelper
.lookupTypeHelper(Utils.toJVMTypeSignature(tcase.receiver),
getClass(), /* resolve = */ true);
HotSpotResolvedJavaMethod metaspaceMethod = CTVMUtilities
.getResolvedMethod(tcase.holder, method);
int index = 0;
try {
index = CompilerToVMHelper
.getVtableIndexForInterfaceMethod(metaspaceKlass,
metaspaceMethod);
} catch (Throwable t) {
if (tcase.isPositive || tcase.expectedException == null) {
throw new Error("Caught unexpected exception " + t);
}
if (!tcase.expectedException.equals(t.getClass())) {
throw new Error(String.format("Caught %s while expected %s",
t.getClass().getName(),
tcase.expectedException.getName()));
}
return;
}
if (tcase.expectedException != null) {
throw new AssertionError("Expected exception wasn't caught: "
+ tcase.expectedException.getName());
}
if (tcase.isPositive) {
Asserts.assertNE(index, INVALID_VTABLE_INDEX,
"Unexpected: got invalid index");
} else {
Asserts.assertEQ(index, INVALID_VTABLE_INDEX,
"Unexpected: got valid index ");
}
}
private static class TestCase {
public final Class<?> receiver;
public final Class<?> holder;
public final String methodName;
public final boolean isPositive;
public final Class<? extends Throwable> expectedException;
public TestCase(Class<?> receiver, Class<?> holder, String methodName,
boolean isPositive,
Class<? extends Throwable> expectedException) {
this.receiver = receiver;
this.holder = holder;
this.methodName = methodName;
this.isPositive = isPositive;
this.expectedException = expectedException;
}
public TestCase(Class<?> receiver, Class<?> holder, String methodName,
boolean isPositive) {
this(receiver, holder, methodName, isPositive, null);
}
@Override
public String toString() {
return String.format("CASE: receiver=%s, holder=%s, method=%s,"
+ " isPositive=%s%n", receiver.getName(), holder.getName(),
methodName, isPositive);
}
}
}
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