1 /* 2 * Copyright (c) 2015, 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 * @compile -XDignore.symbol.file IntfMethod.java 29 * @run main/othervm IntfMethod 30 * @run main/othervm -Xint IntfMethod 31 * @run main/othervm -Xcomp IntfMethod 32 */ 33 34 35 import jdk.internal.org.objectweb.asm.*; 36 import java.io.FileOutputStream; 37 import java.lang.reflect.InvocationTargetException; 38 import static jdk.internal.org.objectweb.asm.Opcodes.*; 39 40 public class IntfMethod { 41 static byte[] dumpC() { 42 ClassWriter cw = new ClassWriter(0); 43 cw.visit(52, ACC_PUBLIC | ACC_SUPER, "C", null, "java/lang/Object", new String[]{"I"}); 44 { 45 MethodVisitor mv = cw.visitMethod(ACC_PUBLIC, "<init>", "()V", null, null); 46 mv.visitCode(); 47 mv.visitVarInsn(ALOAD, 0); 48 mv.visitMethodInsn(INVOKESPECIAL, "java/lang/Object", "<init>", "()V", false); 49 mv.visitInsn(RETURN); 50 mv.visitMaxs(1, 1); 51 mv.visitEnd(); 52 } 53 { 54 MethodVisitor mv = cw.visitMethod(ACC_PUBLIC, "testSpecialIntf", "()V", null, null); 55 mv.visitCode(); 56 mv.visitVarInsn(ALOAD, 0); 57 mv.visitMethodInsn(INVOKESPECIAL, "I", "f1", "()V", /*itf=*/false); 58 mv.visitInsn(RETURN); 59 mv.visitMaxs(1, 1); 60 mv.visitEnd(); 61 } 62 { 63 MethodVisitor mv = cw.visitMethod(ACC_PUBLIC, "testStaticIntf", "()V", null, null); 64 mv.visitCode(); 65 mv.visitMethodInsn(INVOKESTATIC, "I", "f2", "()V", /*itf=*/false); 66 mv.visitInsn(RETURN); 67 mv.visitMaxs(1, 1); 68 mv.visitEnd(); 69 } 70 { 71 MethodVisitor mv = cw.visitMethod(ACC_PUBLIC, "testSpecialClass", "()V", null, null); 72 mv.visitCode(); 73 mv.visitVarInsn(ALOAD, 0); 74 mv.visitMethodInsn(INVOKESPECIAL, "C", "f1", "()V", /*itf=*/true); 75 mv.visitInsn(RETURN); 76 mv.visitMaxs(1, 1); 77 mv.visitEnd(); 78 } 79 80 { 81 MethodVisitor mv = cw.visitMethod(ACC_PUBLIC | ACC_STATIC, "f2", "()V", null, null); 82 mv.visitCode(); 83 mv.visitInsn(RETURN); 84 mv.visitMaxs(0, 1); 85 mv.visitEnd(); 86 } 87 { 88 MethodVisitor mv = cw.visitMethod(ACC_PUBLIC, "testStaticClass", "()V", null, null); 89 mv.visitCode(); 90 mv.visitMethodInsn(INVOKESTATIC, "C", "f2", "()V", /*itf=*/true); 91 mv.visitInsn(RETURN); 92 mv.visitMaxs(1, 1); 93 mv.visitEnd(); 94 } 95 cw.visitEnd(); 96 return cw.toByteArray(); 97 } 98 99 static byte[] dumpI() { 100 ClassWriter cw = new ClassWriter(0); 101 cw.visit(52, ACC_PUBLIC | ACC_ABSTRACT | ACC_INTERFACE, "I", null, "java/lang/Object", null); 102 { 103 MethodVisitor mv = cw.visitMethod(ACC_PUBLIC, "f1", "()V", null, null); 104 mv.visitCode(); 105 mv.visitInsn(RETURN); 106 mv.visitMaxs(0, 1); 107 mv.visitEnd(); 108 } 109 { 110 MethodVisitor mv = cw.visitMethod(ACC_PUBLIC | ACC_STATIC, "f2", "()V", null, null); 111 mv.visitCode(); 112 mv.visitInsn(RETURN); 113 mv.visitMaxs(0, 1); 114 mv.visitEnd(); 115 } 116 cw.visitEnd(); 117 return cw.toByteArray(); 118 } 119 120 static class CL extends ClassLoader { 121 @Override 122 protected Class<?> findClass(String name) throws ClassNotFoundException { 123 byte[] classFile; 124 switch (name) { 125 case "I": classFile = dumpI(); break; 126 case "C": classFile = dumpC(); break; 127 default: 128 throw new ClassNotFoundException(name); 129 } 130 return defineClass(name, classFile, 0, classFile.length); 131 } 132 } 133 134 public static void main(String[] args) throws Throwable { 135 Class<?> cls = (new CL()).loadClass("C"); 136 try (FileOutputStream fos = new FileOutputStream("I.class")) { fos.write(dumpI()); } 137 try (FileOutputStream fos = new FileOutputStream("C.class")) { fos.write(dumpC()); } 138 139 for (String name : new String[] { "testSpecialIntf", "testStaticIntf", "testSpecialClass", "testStaticClass"}) { 140 System.out.printf("%s: ", name); 141 try { 142 cls.getMethod(name).invoke(cls.newInstance()); 143 System.out.println("FAILED"); 144 throw new Exception("Failed to create ICCE"); 145 } catch (Throwable e) { 146 if (e instanceof InvocationTargetException && 147 e.getCause() != null && e.getCause() instanceof IncompatibleClassChangeError) { 148 System.out.println("PASSED"); 149 continue; 150 } else { 151 throw e; 152 } 153 } 154 } 155 } 156 }