Wed, 27 Apr 2016 01:25:04 +0800
Initial load
http://hg.openjdk.java.net/jdk8u/jdk8u/hotspot/
changeset: 6782:28b50d07f6f8
tag: jdk8u25-b17
aoqi@0 | 1 | /* |
aoqi@0 | 2 | * Copyright (c) 2014, Oracle and/or its affiliates. All rights reserved. |
aoqi@0 | 3 | * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. |
aoqi@0 | 4 | * |
aoqi@0 | 5 | * This code is free software; you can redistribute it and/or modify it |
aoqi@0 | 6 | * under the terms of the GNU General Public License version 2 only, as |
aoqi@0 | 7 | * published by the Free Software Foundation. |
aoqi@0 | 8 | * |
aoqi@0 | 9 | * This code is distributed in the hope that it will be useful, but WITHOUT |
aoqi@0 | 10 | * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or |
aoqi@0 | 11 | * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License |
aoqi@0 | 12 | * version 2 for more details (a copy is included in the LICENSE file that |
aoqi@0 | 13 | * accompanied this code). |
aoqi@0 | 14 | * |
aoqi@0 | 15 | * You should have received a copy of the GNU General Public License version |
aoqi@0 | 16 | * 2 along with this work; if not, write to the Free Software Foundation, |
aoqi@0 | 17 | * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. |
aoqi@0 | 18 | * |
aoqi@0 | 19 | * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA |
aoqi@0 | 20 | * or visit www.oracle.com if you need additional information or have any |
aoqi@0 | 21 | * questions. |
aoqi@0 | 22 | * |
aoqi@0 | 23 | */ |
aoqi@0 | 24 | |
aoqi@0 | 25 | /* |
aoqi@0 | 26 | * @test |
aoqi@0 | 27 | * @bug 8032010 |
aoqi@0 | 28 | * @summary method lookup on an abstract method in a concrete class should be successful |
aoqi@0 | 29 | * @run main TestConcreteClassWithAbstractMethod |
aoqi@0 | 30 | */ |
aoqi@0 | 31 | |
aoqi@0 | 32 | import jdk.internal.org.objectweb.asm.ClassWriter; |
aoqi@0 | 33 | import jdk.internal.org.objectweb.asm.MethodVisitor; |
aoqi@0 | 34 | |
aoqi@0 | 35 | import static jdk.internal.org.objectweb.asm.Opcodes.*; |
aoqi@0 | 36 | |
aoqi@0 | 37 | /* |
aoqi@0 | 38 | * class T1 { public int m() {} } |
aoqi@0 | 39 | * class T2 { public abstract int m(); } |
aoqi@0 | 40 | * class T3 { public int m() {} } |
aoqi@0 | 41 | * |
aoqi@0 | 42 | * Call site: T3.test() { invokevirtual T2.m() } |
aoqi@0 | 43 | * T3.m() should be invoked |
aoqi@0 | 44 | */ |
aoqi@0 | 45 | public class TestConcreteClassWithAbstractMethod { |
aoqi@0 | 46 | static final String classT1 = "p1.T1"; |
aoqi@0 | 47 | static final String classT2 = "p1.T2"; |
aoqi@0 | 48 | static final String classT3 = "p1.T3"; |
aoqi@0 | 49 | |
aoqi@0 | 50 | static final String callerName = classT3; |
aoqi@0 | 51 | |
aoqi@0 | 52 | public static void main(String[] args) throws Exception { |
aoqi@0 | 53 | ClassLoader cl = new ClassLoader() { |
aoqi@0 | 54 | public Class<?> loadClass(String name) throws ClassNotFoundException { |
aoqi@0 | 55 | if (findLoadedClass(name) != null) { |
aoqi@0 | 56 | return findLoadedClass(name); |
aoqi@0 | 57 | } |
aoqi@0 | 58 | |
aoqi@0 | 59 | if (classT1.equals(name)) { |
aoqi@0 | 60 | byte[] classFile = dumpT1(); |
aoqi@0 | 61 | return defineClass(classT1, classFile, 0, classFile.length); |
aoqi@0 | 62 | } |
aoqi@0 | 63 | if (classT2.equals(name)) { |
aoqi@0 | 64 | byte[] classFile = dumpT2(); |
aoqi@0 | 65 | return defineClass(classT2, classFile, 0, classFile.length); |
aoqi@0 | 66 | } |
aoqi@0 | 67 | if (classT3.equals(name)) { |
aoqi@0 | 68 | byte[] classFile = dumpT3(); |
aoqi@0 | 69 | return defineClass(classT3, classFile, 0, classFile.length); |
aoqi@0 | 70 | } |
aoqi@0 | 71 | |
aoqi@0 | 72 | return super.loadClass(name); |
aoqi@0 | 73 | } |
aoqi@0 | 74 | }; |
aoqi@0 | 75 | |
aoqi@0 | 76 | cl.loadClass(classT1); |
aoqi@0 | 77 | cl.loadClass(classT2); |
aoqi@0 | 78 | cl.loadClass(classT3); |
aoqi@0 | 79 | |
aoqi@0 | 80 | //cl.loadClass(callerName).getDeclaredMethod("m"); |
aoqi@0 | 81 | cl.loadClass(callerName).newInstance(); |
aoqi@0 | 82 | |
aoqi@0 | 83 | int result = (Integer)cl.loadClass(callerName).getDeclaredMethod("test").invoke(null); |
aoqi@0 | 84 | System.out.println(""+result); |
aoqi@0 | 85 | } |
aoqi@0 | 86 | |
aoqi@0 | 87 | public static byte[] dumpT1() { |
aoqi@0 | 88 | ClassWriter cw = new ClassWriter(0); |
aoqi@0 | 89 | MethodVisitor mv; |
aoqi@0 | 90 | |
aoqi@0 | 91 | cw.visit(52, ACC_PUBLIC | ACC_SUPER, "p1/T1", null, "java/lang/Object", null); |
aoqi@0 | 92 | { |
aoqi@0 | 93 | mv = cw.visitMethod(ACC_PUBLIC, "<init>", "()V", null, null); |
aoqi@0 | 94 | mv.visitCode(); |
aoqi@0 | 95 | mv.visitVarInsn(ALOAD, 0); |
aoqi@0 | 96 | mv.visitMethodInsn(INVOKESPECIAL, "java/lang/Object", "<init>", "()V", false); |
aoqi@0 | 97 | mv.visitInsn(RETURN); |
aoqi@0 | 98 | mv.visitMaxs(1, 1); |
aoqi@0 | 99 | mv.visitEnd(); |
aoqi@0 | 100 | } |
aoqi@0 | 101 | { |
aoqi@0 | 102 | mv = cw.visitMethod(ACC_PUBLIC, "m", "()I", null, null); |
aoqi@0 | 103 | mv.visitCode(); |
aoqi@0 | 104 | mv.visitFieldInsn(GETSTATIC, "java/lang/System", "out", "Ljava/io/PrintStream;"); |
aoqi@0 | 105 | mv.visitLdcInsn("p1/T1.m()"); |
aoqi@0 | 106 | mv.visitMethodInsn(INVOKEVIRTUAL, "java/io/PrintStream", "print", "(Ljava/lang/String;)V", false); |
aoqi@0 | 107 | mv.visitIntInsn(BIPUSH, 3); |
aoqi@0 | 108 | mv.visitInsn(IRETURN); |
aoqi@0 | 109 | mv.visitMaxs(2, 1); |
aoqi@0 | 110 | mv.visitEnd(); |
aoqi@0 | 111 | } |
aoqi@0 | 112 | cw.visitEnd(); |
aoqi@0 | 113 | |
aoqi@0 | 114 | return cw.toByteArray(); |
aoqi@0 | 115 | } |
aoqi@0 | 116 | |
aoqi@0 | 117 | public static byte[] dumpT2() { |
aoqi@0 | 118 | ClassWriter cw = new ClassWriter(0); |
aoqi@0 | 119 | MethodVisitor mv; |
aoqi@0 | 120 | |
aoqi@0 | 121 | cw.visit(52, ACC_PUBLIC | ACC_SUPER, "p1/T2", null, "p1/T1", null); |
aoqi@0 | 122 | { |
aoqi@0 | 123 | mv = cw.visitMethod(ACC_PUBLIC, "<init>", "()V", null, null); |
aoqi@0 | 124 | mv.visitCode(); |
aoqi@0 | 125 | mv.visitVarInsn(ALOAD, 0); |
aoqi@0 | 126 | mv.visitMethodInsn(INVOKESPECIAL, "p1/T1", "<init>", "()V", false); |
aoqi@0 | 127 | mv.visitInsn(RETURN); |
aoqi@0 | 128 | mv.visitMaxs(1, 1); |
aoqi@0 | 129 | mv.visitEnd(); |
aoqi@0 | 130 | } |
aoqi@0 | 131 | { |
aoqi@0 | 132 | mv = cw.visitMethod(ACC_PUBLIC + ACC_ABSTRACT, "m", "()I", null, null); |
aoqi@0 | 133 | mv.visitEnd(); |
aoqi@0 | 134 | } |
aoqi@0 | 135 | cw.visitEnd(); |
aoqi@0 | 136 | |
aoqi@0 | 137 | return cw.toByteArray(); |
aoqi@0 | 138 | } |
aoqi@0 | 139 | |
aoqi@0 | 140 | public static byte[] dumpT3() { |
aoqi@0 | 141 | ClassWriter cw = new ClassWriter(0); |
aoqi@0 | 142 | MethodVisitor mv; |
aoqi@0 | 143 | |
aoqi@0 | 144 | cw.visit(52, ACC_PUBLIC + ACC_SUPER, "p1/T3", null, "p1/T2", null); |
aoqi@0 | 145 | |
aoqi@0 | 146 | { |
aoqi@0 | 147 | mv = cw.visitMethod(ACC_PUBLIC, "<init>", "()V", null, null); |
aoqi@0 | 148 | mv.visitCode(); |
aoqi@0 | 149 | mv.visitVarInsn(ALOAD, 0); |
aoqi@0 | 150 | mv.visitMethodInsn(INVOKESPECIAL, "p1/T2", "<init>", "()V", false); |
aoqi@0 | 151 | mv.visitInsn(RETURN); |
aoqi@0 | 152 | mv.visitMaxs(1, 1); |
aoqi@0 | 153 | mv.visitEnd(); |
aoqi@0 | 154 | } |
aoqi@0 | 155 | { |
aoqi@0 | 156 | mv = cw.visitMethod(ACC_PUBLIC, "m", "()I", null, null); |
aoqi@0 | 157 | mv.visitCode(); |
aoqi@0 | 158 | mv.visitFieldInsn(GETSTATIC, "java/lang/System", "out", "Ljava/io/PrintStream;"); |
aoqi@0 | 159 | mv.visitLdcInsn("p1/T3.m()"); |
aoqi@0 | 160 | mv.visitMethodInsn(INVOKEVIRTUAL, "java/io/PrintStream", "print", "(Ljava/lang/String;)V", false); |
aoqi@0 | 161 | mv.visitIntInsn(BIPUSH, 2); |
aoqi@0 | 162 | mv.visitInsn(IRETURN); |
aoqi@0 | 163 | mv.visitMaxs(2, 1); |
aoqi@0 | 164 | mv.visitEnd(); |
aoqi@0 | 165 | } |
aoqi@0 | 166 | { |
aoqi@0 | 167 | mv = cw.visitMethod(ACC_PUBLIC + ACC_STATIC, "test", "()I", null, null); |
aoqi@0 | 168 | mv.visitCode(); |
aoqi@0 | 169 | mv.visitTypeInsn(NEW, "p1/T3"); |
aoqi@0 | 170 | mv.visitInsn(DUP); |
aoqi@0 | 171 | mv.visitMethodInsn(INVOKESPECIAL, "p1/T3", "<init>", "()V", false); |
aoqi@0 | 172 | mv.visitMethodInsn(INVOKEVIRTUAL, "p1/T2", "m", "()I", false); |
aoqi@0 | 173 | mv.visitInsn(IRETURN); |
aoqi@0 | 174 | mv.visitMaxs(3, 2); |
aoqi@0 | 175 | mv.visitEnd(); |
aoqi@0 | 176 | } |
aoqi@0 | 177 | cw.visitEnd(); |
aoqi@0 | 178 | |
aoqi@0 | 179 | return cw.toByteArray(); |
aoqi@0 | 180 | } |
aoqi@0 | 181 | } |