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/*
* Copyright (c) 2015, 2016, 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
* @modules java.base/jdk.internal.misc
* @modules java.base/jdk.internal.org.objectweb.asm
* java.base/jdk.internal.org.objectweb.asm.tree
* jdk.internal.vm.ci/jdk.vm.ci.hotspot
* jdk.internal.vm.ci/jdk.vm.ci.code
* @build jdk.internal.vm.ci/jdk.vm.ci.hotspot.CompilerToVMHelper
* @run main/othervm -XX:+UnlockExperimentalVMOptions -XX:+EnableJVMCI
* -Djvmci.Compiler=null
* compiler.jvmci.compilerToVM.ResolveMethodTest
*/
package compiler.jvmci.compilerToVM;
import compiler.jvmci.common.CTVMUtilities;
import compiler.jvmci.common.testcases.AbstractClass;
import compiler.jvmci.common.testcases.AbstractClassExtender;
import compiler.jvmci.common.testcases.MultipleImplementer1;
import compiler.jvmci.common.testcases.MultipleImplementer2;
import compiler.jvmci.common.testcases.MultipleImplementersInterface;
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.internal.misc.Unsafe;
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.util.HashSet;
import java.util.Set;
public class ResolveMethodTest {
private static final Unsafe UNSAFE = Unsafe.getUnsafe();
public static void main(String args[]) {
ResolveMethodTest test = new ResolveMethodTest();
// positive cases
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<>();
// a usual class public method
result.add(new TestCase(SingleSubclass.class, SingleSubclass.class,
"usualMethod", ResolveMethodTest.class, true));
// an array method
result.add(new TestCase(int[].class, Object.class, "toString",
ResolveMethodTest.class, true));
// a method from base class, which was overriden in tested one
result.add(new TestCase(SingleSubclass.class, SingleSubclass.class,
"overridenMethod", ResolveMethodTest.class, true));
// a method from base class, which was not overriden in tested one
result.add(new TestCase(SingleSubclass.class,
SingleSubclassedClass.class, "inheritedMethod",
ResolveMethodTest.class, true));
/* a method from base class, which was overriden in tested one with
base class as holder */
result.add(new TestCase(SingleSubclass.class,
SingleSubclassedClass.class, "overridenMethod",
ResolveMethodTest.class, true));
// an interface method
result.add(new TestCase(SingleImplementer.class,
SingleImplementerInterface.class, "interfaceMethod",
ResolveMethodTest.class, true));
// an interface default method overriden in implementer
result.add(new TestCase(MultipleImplementer1.class,
MultipleImplementersInterface.class, "defaultMethod",
ResolveMethodTest.class, true));
// an interface default method not overriden in implementer
result.add(new TestCase(MultipleImplementer2.class,
MultipleImplementersInterface.class, "defaultMethod",
ResolveMethodTest.class, true));
// an abstract method
result.add(new TestCase(AbstractClassExtender.class, AbstractClass.class,
"abstractMethod", ResolveMethodTest.class, true));
// private method with right accessor
result.add(new TestCase(SingleSubclass.class, SingleSubclass.class,
"privateMethod", SingleSubclass.class, true));
// package-private method with right accessor
result.add(new TestCase(SingleSubclass.class, SingleSubclass.class,
"defaultAccessMethod", SingleSubclass.class, true));
// negative cases
// private method of another class
result.add(new TestCase(SingleSubclass.class, SingleSubclass.class,
"privateMethod", ResolveMethodTest.class, false));
// package-private method from another package
result.add(new TestCase(SingleSubclass.class, SingleSubclass.class,
"defaultAccessMethod", ResolveMethodTest.class, false));
return result;
}
private void runTest(TestCase tcase) throws NoSuchMethodException {
System.out.println(tcase);
HotSpotResolvedJavaMethod metaspaceMethod = CTVMUtilities
.getResolvedMethod(tcase.holder,
tcase.holder.getDeclaredMethod(tcase.methodName));
HotSpotResolvedObjectType holderMetaspace = CompilerToVMHelper
.lookupTypeHelper(Utils.toJVMTypeSignature(tcase.holder),
getClass(), /* resolve = */ true);
HotSpotResolvedObjectType callerMetaspace = CompilerToVMHelper
.lookupTypeHelper(Utils.toJVMTypeSignature(tcase.caller),
getClass(), /* resolve = */ true);
HotSpotResolvedObjectType receiverMetaspace = CompilerToVMHelper
.lookupTypeHelper(Utils.toJVMTypeSignature(tcase.receiver),
getClass(), /* resolve = */ true);
// Can only resolve methods on a linked class so force initialization
receiverMetaspace.initialize();
HotSpotResolvedJavaMethod resolvedMetaspaceMethod
= CompilerToVMHelper.resolveMethod(receiverMetaspace,
metaspaceMethod, callerMetaspace);
if (tcase.isPositive) {
Asserts.assertNotNull(resolvedMetaspaceMethod,
"Unexpected null resolved method value for "
+ tcase.methodName);
Asserts.assertEQ(metaspaceMethod.getName(), tcase.methodName,
"Reflection and c2vm method names doesn't match");
} else {
Asserts.assertNull(resolvedMetaspaceMethod,
"Method unexpectedly resolved");
}
}
private static class TestCase {
public final Class<?> receiver;
public final Class<?> holder;
public final Class<?> caller;
public final String methodName;
public final boolean isPositive;
public TestCase(Class<?> recv, Class<?> holder, String methodName,
Class<?> caller, boolean isPositive) {
this.receiver = recv;
this.holder = holder;
this.caller = caller;
this.methodName = methodName;
this.isPositive = isPositive;
}
@Override
public String toString() {
return String.format("CASE: receiver=%s, holder=%s, method=%s,"
+ "caller=%s, isPositive=%s%n", receiver.getName(),
holder.getName(), methodName, caller.getName(), isPositive);
}
}
}
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