1/* 2 * Copyright (c) 2016, Oracle and/or its affiliates. All rights reserved. 3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. 4 * 5 * This code is free software; you can redistribute it and/or modify it 6 * under the terms of the GNU General Public License version 2 only, as 7 * published by the Free Software Foundation. 8 * 9 * This code is distributed in the hope that it will be useful, but WITHOUT 10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or 11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License 12 * version 2 for more details (a copy is included in the LICENSE file that 13 * accompanied this code). 14 * 15 * You should have received a copy of the GNU General Public License version 16 * 2 along with this work; if not, write to the Free Software Foundation, 17 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. 18 * 19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA 20 * or visit www.oracle.com if you need additional information or have any 21 * questions. 22 */ 23 24/* 25 * @test 26 * $bug 8087223 27 * @summary Adding constantTag to keep method call consistent with it. 28 * @modules java.base/jdk.internal.org.objectweb.asm 29 * java.base/jdk.internal.misc 30 * java.management 31 * @compile -XDignore.symbol.file IntfMethod.java 32 * @run main/othervm IntfMethod 33 * @run main/othervm -Xint IntfMethod 34 * @run main/othervm -Xcomp IntfMethod 35 */ 36 37 38import jdk.internal.org.objectweb.asm.*; 39import java.io.FileOutputStream; 40import java.lang.reflect.InvocationTargetException; 41import static jdk.internal.org.objectweb.asm.Opcodes.*; 42 43public class IntfMethod { 44 static byte[] dumpC() { 45 ClassWriter cw = new ClassWriter(0); 46 cw.visit(52, ACC_PUBLIC | ACC_SUPER, "C", null, "java/lang/Object", new String[]{"I"}); 47 { 48 MethodVisitor mv = cw.visitMethod(ACC_PUBLIC, "<init>", "()V", null, null); 49 mv.visitCode(); 50 mv.visitVarInsn(ALOAD, 0); 51 mv.visitMethodInsn(INVOKESPECIAL, "java/lang/Object", "<init>", "()V", false); 52 mv.visitInsn(RETURN); 53 mv.visitMaxs(1, 1); 54 mv.visitEnd(); 55 } 56 { 57 MethodVisitor mv = cw.visitMethod(ACC_PUBLIC, "testSpecialIntf", "()V", null, null); 58 mv.visitCode(); 59 mv.visitVarInsn(ALOAD, 0); 60 mv.visitMethodInsn(INVOKESPECIAL, "I", "f1", "()V", /*itf=*/false); 61 mv.visitInsn(RETURN); 62 mv.visitMaxs(1, 1); 63 mv.visitEnd(); 64 } 65 { 66 MethodVisitor mv = cw.visitMethod(ACC_PUBLIC, "testStaticIntf", "()V", null, null); 67 mv.visitCode(); 68 mv.visitMethodInsn(INVOKESTATIC, "I", "f2", "()V", /*itf=*/false); 69 mv.visitInsn(RETURN); 70 mv.visitMaxs(1, 1); 71 mv.visitEnd(); 72 } 73 { 74 MethodVisitor mv = cw.visitMethod(ACC_PUBLIC, "testSpecialClass", "()V", null, null); 75 mv.visitCode(); 76 mv.visitVarInsn(ALOAD, 0); 77 mv.visitMethodInsn(INVOKESPECIAL, "C", "f1", "()V", /*itf=*/true); 78 mv.visitInsn(RETURN); 79 mv.visitMaxs(1, 1); 80 mv.visitEnd(); 81 } 82 83 { 84 MethodVisitor mv = cw.visitMethod(ACC_PUBLIC | ACC_STATIC, "f2", "()V", null, null); 85 mv.visitCode(); 86 mv.visitInsn(RETURN); 87 mv.visitMaxs(0, 1); 88 mv.visitEnd(); 89 } 90 { 91 MethodVisitor mv = cw.visitMethod(ACC_PUBLIC, "testStaticClass", "()V", null, null); 92 mv.visitCode(); 93 mv.visitMethodInsn(INVOKESTATIC, "C", "f2", "()V", /*itf=*/true); 94 mv.visitInsn(RETURN); 95 mv.visitMaxs(1, 1); 96 mv.visitEnd(); 97 } 98 cw.visitEnd(); 99 return cw.toByteArray(); 100 } 101 102 static byte[] dumpI() { 103 ClassWriter cw = new ClassWriter(0); 104 cw.visit(52, ACC_PUBLIC | ACC_ABSTRACT | ACC_INTERFACE, "I", null, "java/lang/Object", null); 105 { 106 MethodVisitor mv = cw.visitMethod(ACC_PUBLIC, "f1", "()V", null, null); 107 mv.visitCode(); 108 mv.visitInsn(RETURN); 109 mv.visitMaxs(0, 1); 110 mv.visitEnd(); 111 } 112 { 113 MethodVisitor mv = cw.visitMethod(ACC_PUBLIC | ACC_STATIC, "f2", "()V", null, null); 114 mv.visitCode(); 115 mv.visitInsn(RETURN); 116 mv.visitMaxs(0, 1); 117 mv.visitEnd(); 118 } 119 cw.visitEnd(); 120 return cw.toByteArray(); 121 } 122 123 static class CL extends ClassLoader { 124 @Override 125 protected Class<?> findClass(String name) throws ClassNotFoundException { 126 byte[] classFile; 127 switch (name) { 128 case "I": classFile = dumpI(); break; 129 case "C": classFile = dumpC(); break; 130 default: 131 throw new ClassNotFoundException(name); 132 } 133 return defineClass(name, classFile, 0, classFile.length); 134 } 135 } 136 137 public static void main(String[] args) throws Throwable { 138 Class<?> cls = (new CL()).loadClass("C"); 139 try (FileOutputStream fos = new FileOutputStream("I.class")) { fos.write(dumpI()); } 140 try (FileOutputStream fos = new FileOutputStream("C.class")) { fos.write(dumpC()); } 141 142 int success = 0; 143 for (String name : new String[] { "testSpecialIntf", "testStaticIntf", "testSpecialClass", "testStaticClass"}) { 144 System.out.printf("%s: ", name); 145 try { 146 cls.getMethod(name).invoke(cls.newInstance()); 147 System.out.println("FAILED - ICCE not thrown"); 148 } catch (Throwable e) { 149 if (e instanceof InvocationTargetException && 150 e.getCause() != null && e.getCause() instanceof IncompatibleClassChangeError) { 151 System.out.println("PASSED - expected ICCE thrown"); 152 success++; 153 continue; 154 } 155 } 156 } 157 if (success != 4) throw new Exception("Failed to catch ICCE"); 158 } 159} 160