| /* |
| * Copyright (c) 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 8087223 |
| * @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 IntfMethod.java |
| * @run main/othervm IntfMethod |
| * @run main/othervm -Xint IntfMethod |
| * @run main/othervm -Xcomp IntfMethod |
| */ |
| |
| |
| import jdk.internal.org.objectweb.asm.*; |
| import java.io.FileOutputStream; |
| import java.lang.reflect.InvocationTargetException; |
| import static jdk.internal.org.objectweb.asm.Opcodes.*; |
| |
| public class IntfMethod { |
| static byte[] dumpC() { |
| ClassWriter cw = new ClassWriter(0); |
| cw.visit(52, ACC_PUBLIC | ACC_SUPER, "C", null, "java/lang/Object", new String[]{"I"}); |
| { |
| 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, "testSpecialIntf", "()V", null, null); |
| mv.visitCode(); |
| mv.visitVarInsn(ALOAD, 0); |
| mv.visitMethodInsn(INVOKESPECIAL, "I", "f1", "()V", /*itf=*/false); |
| mv.visitInsn(RETURN); |
| mv.visitMaxs(1, 1); |
| mv.visitEnd(); |
| } |
| { |
| MethodVisitor mv = cw.visitMethod(ACC_PUBLIC, "testStaticIntf", "()V", null, null); |
| mv.visitCode(); |
| mv.visitMethodInsn(INVOKESTATIC, "I", "f2", "()V", /*itf=*/false); |
| mv.visitInsn(RETURN); |
| mv.visitMaxs(1, 1); |
| mv.visitEnd(); |
| } |
| { |
| MethodVisitor mv = cw.visitMethod(ACC_PUBLIC, "testSpecialClass", "()V", null, null); |
| mv.visitCode(); |
| mv.visitVarInsn(ALOAD, 0); |
| mv.visitMethodInsn(INVOKESPECIAL, "C", "f1", "()V", /*itf=*/true); |
| mv.visitInsn(RETURN); |
| mv.visitMaxs(1, 1); |
| mv.visitEnd(); |
| } |
| |
| { |
| MethodVisitor mv = cw.visitMethod(ACC_PUBLIC | ACC_STATIC, "f2", "()V", null, null); |
| mv.visitCode(); |
| mv.visitInsn(RETURN); |
| mv.visitMaxs(0, 1); |
| mv.visitEnd(); |
| } |
| { |
| MethodVisitor mv = cw.visitMethod(ACC_PUBLIC, "testStaticClass", "()V", null, null); |
| mv.visitCode(); |
| mv.visitMethodInsn(INVOKESTATIC, "C", "f2", "()V", /*itf=*/true); |
| mv.visitInsn(RETURN); |
| mv.visitMaxs(1, 1); |
| mv.visitEnd(); |
| } |
| cw.visitEnd(); |
| return cw.toByteArray(); |
| } |
| |
| static byte[] dumpI() { |
| ClassWriter cw = new ClassWriter(0); |
| cw.visit(52, ACC_PUBLIC | ACC_ABSTRACT | ACC_INTERFACE, "I", null, "java/lang/Object", null); |
| { |
| MethodVisitor mv = cw.visitMethod(ACC_PUBLIC, "f1", "()V", null, null); |
| mv.visitCode(); |
| mv.visitInsn(RETURN); |
| mv.visitMaxs(0, 1); |
| mv.visitEnd(); |
| } |
| { |
| MethodVisitor mv = cw.visitMethod(ACC_PUBLIC | ACC_STATIC, "f2", "()V", null, null); |
| mv.visitCode(); |
| mv.visitInsn(RETURN); |
| mv.visitMaxs(0, 1); |
| mv.visitEnd(); |
| } |
| cw.visitEnd(); |
| return cw.toByteArray(); |
| } |
| |
| static class CL extends ClassLoader { |
| @Override |
| protected Class<?> findClass(String name) throws ClassNotFoundException { |
| byte[] classFile; |
| switch (name) { |
| case "I": classFile = dumpI(); break; |
| case "C": classFile = dumpC(); break; |
| default: |
| throw new ClassNotFoundException(name); |
| } |
| return defineClass(name, classFile, 0, classFile.length); |
| } |
| } |
| |
| public static void main(String[] args) throws Throwable { |
| Class<?> cls = (new CL()).loadClass("C"); |
| try (FileOutputStream fos = new FileOutputStream("I.class")) { fos.write(dumpI()); } |
| try (FileOutputStream fos = new FileOutputStream("C.class")) { fos.write(dumpC()); } |
| |
| int success = 0; |
| for (String name : new String[] { "testSpecialIntf", "testStaticIntf", "testSpecialClass", "testStaticClass"}) { |
| System.out.printf("%s: ", name); |
| try { |
| cls.getMethod(name).invoke(cls.newInstance()); |
| System.out.println("FAILED - ICCE not thrown"); |
| } catch (Throwable e) { |
| if (e instanceof InvocationTargetException && |
| e.getCause() != null && e.getCause() instanceof IncompatibleClassChangeError) { |
| System.out.println("PASSED - expected ICCE thrown"); |
| success++; |
| continue; |
| } |
| } |
| } |
| if (success != 4) throw new Exception("Failed to catch ICCE"); |
| } |
| } |