| /* |
| * Copyright (c) 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 8087223 |
| * @summary Adding constantTag to keep method call consistent with it. |
| * @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"); |
| Handle handle2 = |
| new Handle(Opcodes.H_INVOKEINTERFACE, "BadInterfaceMethodref", "staticM", "()V"); |
| |
| { |
| 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"); |
| Handle handle2 = |
| new Handle(Opcodes.H_INVOKEINTERFACE, "BadMethodref", "staticM", "()V"); |
| |
| { |
| 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 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; |
| 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()); |
| } |
| |
| 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 (no exception)"); // ICCE should be thrown |
| } catch (Throwable e) { |
| if (e instanceof InvocationTargetException && e.getCause() != null && |
| e.getCause() instanceof IncompatibleClassChangeError) { |
| System.out.println("PASSED"); |
| success++; |
| continue; |
| } else { |
| System.out.println("FAILED with exception"); |
| 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 (no exception)"); // ICCE should be thrown |
| } catch (Throwable e) { |
| if (e instanceof InvocationTargetException && e.getCause() != null && |
| e.getCause() instanceof IncompatibleClassChangeError) { |
| System.out.println("PASSED"); |
| success++; |
| continue; |
| } else { |
| System.out.println("FAILED with exception"); |
| throw e; |
| } |
| } |
| } |
| if (success != methods.length) { |
| throw new Exception("BadMethodRef Failed to catch IncompatibleClassChangeError"); |
| } |
| |
| } |
| } |