/*
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* 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
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*
* 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.
*
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*/
/*
* @test
* @bug 8087223 8195650
* @summary Adding constantTag to keep method call consistent with it.
* @modules java.base/jdk.internal.org.objectweb.asm
* java.base/jdk.internal.misc
* java.management
* @compile -XDignore.symbol.file BadMethodHandles.java
* @run main/othervm BadMethodHandles
*/
import jdk.internal.org.objectweb.asm.*;
import java.io.FileOutputStream;
import java.lang.reflect.InvocationTargetException;
import java.lang.invoke.MethodHandle;
import java.lang.invoke.MethodHandles;
import java.lang.invoke.MethodType;
import static jdk.internal.org.objectweb.asm.Opcodes.*;
public class BadMethodHandles {
static byte[] dumpBadInterfaceMethodref() {
ClassWriter cw = new ClassWriter(0);
cw.visit(52, ACC_PUBLIC | ACC_SUPER, "BadInterfaceMethodref", null, "java/lang/Object", null);
Handle handle1 =
new Handle(Opcodes.H_INVOKEINTERFACE, "BadInterfaceMethodref", "m", "()V", true);
Handle handle2 =
new Handle(Opcodes.H_INVOKEINTERFACE, "BadInterfaceMethodref", "staticM", "()V", true);
{
MethodVisitor mv = cw.visitMethod(ACC_PUBLIC, "<init>", "()V", null, null);
mv.visitCode();
mv.visitVarInsn(ALOAD, 0);
mv.visitMethodInsn(INVOKESPECIAL, "java/lang/Object", "<init>", "()V", false);
mv.visitInsn(RETURN);
mv.visitMaxs(1, 1);
mv.visitEnd();
}
{
MethodVisitor mv = cw.visitMethod(ACC_PUBLIC, "m", "()V", null, null);
mv.visitCode();
mv.visitFieldInsn(GETSTATIC, "java/lang/System", "out", "Ljava/io/PrintStream;");
mv.visitLdcInsn("hello from m");
mv.visitMethodInsn(INVOKEVIRTUAL, "java/io/PrintStream", "println", "(Ljava/lang/String;)V", false/*intf*/);
mv.visitInsn(RETURN);
mv.visitMaxs(3, 1);
mv.visitEnd();
}
{
MethodVisitor mv = cw.visitMethod(ACC_PUBLIC | ACC_STATIC, "staticM", "()V", null, null);
mv.visitCode();
mv.visitFieldInsn(GETSTATIC, "java/lang/System", "out", "Ljava/io/PrintStream;");
mv.visitLdcInsn("hello from staticM");
mv.visitMethodInsn(INVOKEVIRTUAL, "java/io/PrintStream", "println", "(Ljava/lang/String;)V", false/*intf*/);
mv.visitInsn(RETURN);
mv.visitMaxs(3, 1);
mv.visitEnd();
}
{
MethodVisitor mv = cw.visitMethod(ACC_PUBLIC | ACC_STATIC, "runm", "()V", null, null);
mv.visitCode();
// REF_invokeStatic
mv.visitLdcInsn(handle1);
mv.visitMethodInsn(INVOKEVIRTUAL, "java/lang/invoke/MethodHandle", "invoke", "()V", false);
mv.visitInsn(RETURN);
mv.visitMaxs(1, 1);
mv.visitEnd();
}
{
MethodVisitor mv = cw.visitMethod(ACC_PUBLIC | ACC_STATIC, "runStaticM", "()V", null, null);
mv.visitCode();
// REF_invokeStatic
mv.visitLdcInsn(handle2);
mv.visitMethodInsn(INVOKEVIRTUAL, "java/lang/invoke/MethodHandle", "invoke", "()V", false);
mv.visitInsn(RETURN);
mv.visitMaxs(1, 1);
mv.visitEnd();
}
cw.visitEnd();
return cw.toByteArray();
}
static byte[] dumpIBad() {
ClassWriter cw = new ClassWriter(0);
cw.visit(52, ACC_PUBLIC | ACC_ABSTRACT | ACC_INTERFACE, "IBad", null, "java/lang/Object", null);
{
MethodVisitor mv = cw.visitMethod(ACC_PUBLIC, "m", "()V", null, null);
mv.visitCode();
mv.visitFieldInsn(GETSTATIC, "java/lang/System", "out", "Ljava/io/PrintStream;");
mv.visitLdcInsn("hello from m");
mv.visitMethodInsn(INVOKEVIRTUAL, "java/io/PrintStream", "println", "(Ljava/lang/String;)V", false/*intf*/);
mv.visitInsn(RETURN);
mv.visitMaxs(3, 1);
mv.visitEnd();
}
{
MethodVisitor mv = cw.visitMethod(ACC_PUBLIC | ACC_STATIC, "staticM", "()V", null, null);
mv.visitCode();
mv.visitFieldInsn(GETSTATIC, "java/lang/System", "out", "Ljava/io/PrintStream;");
mv.visitLdcInsn("hello from staticM");
mv.visitMethodInsn(INVOKEVIRTUAL, "java/io/PrintStream", "println", "(Ljava/lang/String;)V", false/*intf*/);
mv.visitInsn(RETURN);
mv.visitMaxs(3, 1);
mv.visitEnd();
}
cw.visitEnd();
return cw.toByteArray();
}
static byte[] dumpBadMethodref() {
ClassWriter cw = new ClassWriter(0);
cw.visit(52, ACC_PUBLIC | ACC_SUPER, "BadMethodref", null, "java/lang/Object", new String[]{"IBad"});
Handle handle1 =
new Handle(Opcodes.H_INVOKEINTERFACE, "BadMethodref", "m", "()V", true);
Handle handle2 =
new Handle(Opcodes.H_INVOKEINTERFACE, "BadMethodref", "staticM", "()V", true);
{
MethodVisitor mv = cw.visitMethod(ACC_PUBLIC, "<init>", "()V", null, null);
mv.visitCode();
mv.visitVarInsn(ALOAD, 0);
mv.visitMethodInsn(INVOKESPECIAL, "java/lang/Object", "<init>", "()V", false);
mv.visitInsn(RETURN);
mv.visitMaxs(1, 1);
mv.visitEnd();
}
{
MethodVisitor mv = cw.visitMethod(ACC_PUBLIC | ACC_STATIC, "runm", "()V", null, null);
mv.visitCode();
// REF_invokeStatic
mv.visitLdcInsn(handle1);
mv.visitMethodInsn(INVOKEVIRTUAL, "java/lang/invoke/MethodHandle", "invoke", "()V", false);
mv.visitInsn(RETURN);
mv.visitMaxs(1, 1);
mv.visitEnd();
}
{
MethodVisitor mv = cw.visitMethod(ACC_PUBLIC | ACC_STATIC, "runStaticM", "()V", null, null);
mv.visitCode();
// REF_invokeStatic
mv.visitLdcInsn(handle2);
mv.visitMethodInsn(INVOKEVIRTUAL, "java/lang/invoke/MethodHandle", "invoke", "()V", false);
mv.visitInsn(RETURN);
mv.visitMaxs(1, 1);
mv.visitEnd();
}
cw.visitEnd();
return cw.toByteArray();
}
static byte[] dumpInvokeBasic() {
ClassWriter cw = new ClassWriter(0);
cw.visit(52, ACC_PUBLIC | ACC_SUPER, "InvokeBasicref", null, "java/lang/Object", null);
Handle handle =
new Handle(Opcodes.H_INVOKEVIRTUAL, "java/lang/invoke/MethodHandle", "invokeBasic", "([Ljava/lang/Object;)Ljava/lang/Object;", false);
{
MethodVisitor mv = cw.visitMethod(ACC_PUBLIC, "<init>", "()V", null, null);
mv.visitCode();
mv.visitVarInsn(ALOAD, 0);
mv.visitMethodInsn(INVOKESPECIAL, "java/lang/Object", "<init>", "()V", false);
mv.visitInsn(RETURN);
mv.visitMaxs(1, 1);
mv.visitEnd();
}
{
MethodVisitor mv = cw.visitMethod(ACC_PUBLIC | ACC_STATIC, "runInvokeBasicM", "()V", null, null);
mv.visitCode();
mv.visitLdcInsn(handle);
mv.visitMethodInsn(INVOKEVIRTUAL, "java/lang/invoke/MethodHandle", "invoke", "()V", false);
mv.visitInsn(RETURN);
mv.visitMaxs(1, 1);
mv.visitEnd();
}
cw.visitEnd();
return cw.toByteArray();
}
static class CL extends ClassLoader {
@Override
protected Class<?> findClass(String name) throws ClassNotFoundException {
byte[] classBytes = null;
switch (name) {
case "BadInterfaceMethodref": classBytes = dumpBadInterfaceMethodref(); break;
case "BadMethodref" : classBytes = dumpBadMethodref(); break;
case "IBad" : classBytes = dumpIBad(); break;
case "InvokeBasicref" : classBytes = dumpInvokeBasic(); break;
default : throw new ClassNotFoundException(name);
}
return defineClass(name, classBytes, 0, classBytes.length);
}
}
public static void main(String[] args) throws Throwable {
try (FileOutputStream fos = new FileOutputStream("BadInterfaceMethodref.class")) {
fos.write(dumpBadInterfaceMethodref());
}
try (FileOutputStream fos = new FileOutputStream("IBad.class")) {
fos.write(dumpIBad());
}
try (FileOutputStream fos = new FileOutputStream("BadMethodref.class")) {
fos.write(dumpBadMethodref());
}
try (FileOutputStream fos = new FileOutputStream("InvokeBasicref.class")) {
fos.write(dumpInvokeBasic());
}
Class<?> cls = (new CL()).loadClass("BadInterfaceMethodref");
String[] methods = {"runm", "runStaticM"};
System.out.println("Test BadInterfaceMethodref:");
int success = 0;
for (String name : methods) {
try {
System.out.printf("invoke %s: \n", name);
cls.getMethod(name).invoke(cls.newInstance());
System.out.println("FAILED - ICCE should be thrown");
} catch (Throwable e) {
if (e instanceof InvocationTargetException && e.getCause() != null &&
e.getCause() instanceof IncompatibleClassChangeError) {
System.out.println("PASSED - expected ICCE thrown");
success++;
continue;
} else {
System.out.println("FAILED with wrong exception" + e);
throw e;
}
}
}
if (success != methods.length) {
throw new Exception("BadInterfaceMethodRef Failed to catch IncompatibleClassChangeError");
}
System.out.println("Test BadMethodref:");
cls = (new CL()).loadClass("BadMethodref");
success = 0;
for (String name : methods) {
try {
System.out.printf("invoke %s: \n", name);
cls.getMethod(name).invoke(cls.newInstance());
System.out.println("FAILED - ICCE should be thrown");
} catch (Throwable e) {
if (e instanceof InvocationTargetException && e.getCause() != null &&
e.getCause() instanceof IncompatibleClassChangeError) {
System.out.println("PASSED - expected ICCE thrown");
success++;
continue;
} else {
System.out.println("FAILED with wrong exception" + e);
throw e;
}
}
}
if (success != methods.length) {
throw new Exception("BadMethodRef Failed to catch IncompatibleClassChangeError");
}
System.out.println("Test InvokeBasicref:");
cls = (new CL()).loadClass("InvokeBasicref");
success = 0;
methods = new String[] {"runInvokeBasicM"};
for (String name : methods) {
try {
System.out.printf("invoke %s: \n", name);
cls.getMethod(name).invoke(cls.newInstance());
System.out.println("FAILED - ICCE should be thrown");
} catch (Throwable e) {
e.printStackTrace();
if (e instanceof InvocationTargetException && e.getCause() != null &&
e.getCause() instanceof IncompatibleClassChangeError) {
System.out.println("PASSED - expected ICCE thrown");
success++;
continue;
} else {
System.out.println("FAILED with wrong exception" + e);
throw e;
}
}
}
if (success != methods.length) {
throw new Exception("InvokeBasicref Failed to catch IncompatibleClassChangeError");
}
}
}