1.1 --- /dev/null Thu Jan 01 00:00:00 1970 +0000
1.2 +++ b/test/runtime/lambda-features/TestConcreteClassWithAbstractMethod.java Wed Feb 05 15:14:47 2014 -0800
1.3 @@ -0,0 +1,181 @@
1.4 +/*
1.5 + * Copyright (c) 2014, Oracle and/or its affiliates. All rights reserved.
1.6 + * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
1.7 + *
1.8 + * This code is free software; you can redistribute it and/or modify it
1.9 + * under the terms of the GNU General Public License version 2 only, as
1.10 + * published by the Free Software Foundation.
1.11 + *
1.12 + * This code is distributed in the hope that it will be useful, but WITHOUT
1.13 + * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
1.14 + * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
1.15 + * version 2 for more details (a copy is included in the LICENSE file that
1.16 + * accompanied this code).
1.17 + *
1.18 + * You should have received a copy of the GNU General Public License version
1.19 + * 2 along with this work; if not, write to the Free Software Foundation,
1.20 + * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
1.21 + *
1.22 + * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
1.23 + * or visit www.oracle.com if you need additional information or have any
1.24 + * questions.
1.25 + *
1.26 + */
1.27 +
1.28 +/*
1.29 + * @test
1.30 + * @bug 8032010
1.31 + * @summary method lookup on an abstract method in a concrete class should be successful
1.32 + * @run main TestConcreteClassWithAbstractMethod
1.33 + */
1.34 +
1.35 +import jdk.internal.org.objectweb.asm.ClassWriter;
1.36 +import jdk.internal.org.objectweb.asm.MethodVisitor;
1.37 +
1.38 +import static jdk.internal.org.objectweb.asm.Opcodes.*;
1.39 +
1.40 +/*
1.41 + * class T1 { public int m() {} }
1.42 + * class T2 { public abstract int m(); }
1.43 + * class T3 { public int m() {} }
1.44 + *
1.45 + * Call site: T3.test() { invokevirtual T2.m() }
1.46 + * T3.m() should be invoked
1.47 + */
1.48 +public class TestConcreteClassWithAbstractMethod {
1.49 + static final String classT1 = "p1.T1";
1.50 + static final String classT2 = "p1.T2";
1.51 + static final String classT3 = "p1.T3";
1.52 +
1.53 + static final String callerName = classT3;
1.54 +
1.55 + public static void main(String[] args) throws Exception {
1.56 + ClassLoader cl = new ClassLoader() {
1.57 + public Class<?> loadClass(String name) throws ClassNotFoundException {
1.58 + if (findLoadedClass(name) != null) {
1.59 + return findLoadedClass(name);
1.60 + }
1.61 +
1.62 + if (classT1.equals(name)) {
1.63 + byte[] classFile = dumpT1();
1.64 + return defineClass(classT1, classFile, 0, classFile.length);
1.65 + }
1.66 + if (classT2.equals(name)) {
1.67 + byte[] classFile = dumpT2();
1.68 + return defineClass(classT2, classFile, 0, classFile.length);
1.69 + }
1.70 + if (classT3.equals(name)) {
1.71 + byte[] classFile = dumpT3();
1.72 + return defineClass(classT3, classFile, 0, classFile.length);
1.73 + }
1.74 +
1.75 + return super.loadClass(name);
1.76 + }
1.77 + };
1.78 +
1.79 + cl.loadClass(classT1);
1.80 + cl.loadClass(classT2);
1.81 + cl.loadClass(classT3);
1.82 +
1.83 + //cl.loadClass(callerName).getDeclaredMethod("m");
1.84 + cl.loadClass(callerName).newInstance();
1.85 +
1.86 + int result = (Integer)cl.loadClass(callerName).getDeclaredMethod("test").invoke(null);
1.87 + System.out.println(""+result);
1.88 + }
1.89 +
1.90 + public static byte[] dumpT1() {
1.91 + ClassWriter cw = new ClassWriter(0);
1.92 + MethodVisitor mv;
1.93 +
1.94 + cw.visit(52, ACC_PUBLIC | ACC_SUPER, "p1/T1", null, "java/lang/Object", null);
1.95 + {
1.96 + mv = cw.visitMethod(ACC_PUBLIC, "<init>", "()V", null, null);
1.97 + mv.visitCode();
1.98 + mv.visitVarInsn(ALOAD, 0);
1.99 + mv.visitMethodInsn(INVOKESPECIAL, "java/lang/Object", "<init>", "()V", false);
1.100 + mv.visitInsn(RETURN);
1.101 + mv.visitMaxs(1, 1);
1.102 + mv.visitEnd();
1.103 + }
1.104 + {
1.105 + mv = cw.visitMethod(ACC_PUBLIC, "m", "()I", null, null);
1.106 + mv.visitCode();
1.107 + mv.visitFieldInsn(GETSTATIC, "java/lang/System", "out", "Ljava/io/PrintStream;");
1.108 + mv.visitLdcInsn("p1/T1.m()");
1.109 + mv.visitMethodInsn(INVOKEVIRTUAL, "java/io/PrintStream", "print", "(Ljava/lang/String;)V", false);
1.110 + mv.visitIntInsn(BIPUSH, 3);
1.111 + mv.visitInsn(IRETURN);
1.112 + mv.visitMaxs(2, 1);
1.113 + mv.visitEnd();
1.114 + }
1.115 + cw.visitEnd();
1.116 +
1.117 + return cw.toByteArray();
1.118 + }
1.119 +
1.120 + public static byte[] dumpT2() {
1.121 + ClassWriter cw = new ClassWriter(0);
1.122 + MethodVisitor mv;
1.123 +
1.124 + cw.visit(52, ACC_PUBLIC | ACC_SUPER, "p1/T2", null, "p1/T1", null);
1.125 + {
1.126 + mv = cw.visitMethod(ACC_PUBLIC, "<init>", "()V", null, null);
1.127 + mv.visitCode();
1.128 + mv.visitVarInsn(ALOAD, 0);
1.129 + mv.visitMethodInsn(INVOKESPECIAL, "p1/T1", "<init>", "()V", false);
1.130 + mv.visitInsn(RETURN);
1.131 + mv.visitMaxs(1, 1);
1.132 + mv.visitEnd();
1.133 + }
1.134 + {
1.135 + mv = cw.visitMethod(ACC_PUBLIC + ACC_ABSTRACT, "m", "()I", null, null);
1.136 + mv.visitEnd();
1.137 + }
1.138 + cw.visitEnd();
1.139 +
1.140 + return cw.toByteArray();
1.141 + }
1.142 +
1.143 + public static byte[] dumpT3() {
1.144 + ClassWriter cw = new ClassWriter(0);
1.145 + MethodVisitor mv;
1.146 +
1.147 + cw.visit(52, ACC_PUBLIC + ACC_SUPER, "p1/T3", null, "p1/T2", null);
1.148 +
1.149 + {
1.150 + mv = cw.visitMethod(ACC_PUBLIC, "<init>", "()V", null, null);
1.151 + mv.visitCode();
1.152 + mv.visitVarInsn(ALOAD, 0);
1.153 + mv.visitMethodInsn(INVOKESPECIAL, "p1/T2", "<init>", "()V", false);
1.154 + mv.visitInsn(RETURN);
1.155 + mv.visitMaxs(1, 1);
1.156 + mv.visitEnd();
1.157 + }
1.158 + {
1.159 + mv = cw.visitMethod(ACC_PUBLIC, "m", "()I", null, null);
1.160 + mv.visitCode();
1.161 + mv.visitFieldInsn(GETSTATIC, "java/lang/System", "out", "Ljava/io/PrintStream;");
1.162 + mv.visitLdcInsn("p1/T3.m()");
1.163 + mv.visitMethodInsn(INVOKEVIRTUAL, "java/io/PrintStream", "print", "(Ljava/lang/String;)V", false);
1.164 + mv.visitIntInsn(BIPUSH, 2);
1.165 + mv.visitInsn(IRETURN);
1.166 + mv.visitMaxs(2, 1);
1.167 + mv.visitEnd();
1.168 + }
1.169 + {
1.170 + mv = cw.visitMethod(ACC_PUBLIC + ACC_STATIC, "test", "()I", null, null);
1.171 + mv.visitCode();
1.172 + mv.visitTypeInsn(NEW, "p1/T3");
1.173 + mv.visitInsn(DUP);
1.174 + mv.visitMethodInsn(INVOKESPECIAL, "p1/T3", "<init>", "()V", false);
1.175 + mv.visitMethodInsn(INVOKEVIRTUAL, "p1/T2", "m", "()I", false);
1.176 + mv.visitInsn(IRETURN);
1.177 + mv.visitMaxs(3, 2);
1.178 + mv.visitEnd();
1.179 + }
1.180 + cw.visitEnd();
1.181 +
1.182 + return cw.toByteArray();
1.183 + }
1.184 +}
