jdk-24/test/langtools/tools/javac/defaultMethods/super/TestDirectSuperInterfaceInvoke.java
2024-05-24 15:58:34 +00:00

106 lines
3.8 KiB
Java

/*
* Copyright (c) 2013, 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
* @bug 8027281
* @summary As per JVMS 4.9.2, invokespecial can only refer to direct superinterfaces
* @enablePreview
* @modules java.base/jdk.internal.classfile.impl
* @compile TestDirectSuperInterfaceInvoke.java
* @run main TestDirectSuperInterfaceInvoke
*/
import java.io.File;
import java.lang.classfile.*;
import java.lang.classfile.attribute.CodeAttribute;
import java.lang.classfile.constantpool.MemberRefEntry;
import java.lang.classfile.instruction.InvokeInstruction;
interface BaseInterface {
public default int testedMethod(){ return 1; }
}
interface IntermediateInterface extends BaseInterface {
}
interface TestInterface extends IntermediateInterface {
public default void test() {
IntermediateInterface.super.testedMethod();
}
}
abstract class BaseClass implements BaseInterface { }
class TestClass extends BaseClass implements BaseInterface {
public int testedMethod() {return 9;}
public void test() {
if (super.testedMethod() != 1)
throw new IllegalStateException();
if (TestClass.super.testedMethod() != 1)
throw new IllegalStateException();
new Runnable() {
public void run() {
if (TestClass.super.testedMethod() != 1)
throw new IllegalStateException();
}
}.run();
}
}
public class TestDirectSuperInterfaceInvoke {
public static void main(String... args) throws Exception {
new TestDirectSuperInterfaceInvoke().run();
}
public void run() throws Exception {
new TestClass().test();
verifyDefaultBody("TestClass.class");
new TestInterface() {}.test();
verifyDefaultBody("TestInterface.class");
}
void verifyDefaultBody(String classFile) {
String workDir = System.getProperty("test.classes");
File file = new File(workDir, classFile);
try {
final ClassModel cf = ClassFile.of().parse(file.toPath());
for (MethodModel m : cf.methods()) {
CodeAttribute codeAttr = m.findAttribute(Attributes.code()).orElseThrow();
for (CodeElement ce : codeAttr.elementList()) {
if (ce instanceof InvokeInstruction instr && instr.opcode() == Opcode.INVOKESPECIAL) {
MemberRefEntry ref = instr.method();
String className = ref.owner().asInternalName();
if (className.equals("BaseInterface"))
throw new IllegalStateException("Must not directly refer to TestedInterface");
}
}
}
} catch (Exception e) {
e.printStackTrace();
throw new Error("error reading " + file +": " + e);
}
}
}