Mercurial > hg > graal-compiler
view test/runtime/lambda-features/TestConcreteClassWithAbstractMethod.java @ 17837:e7a61fa2658b
Added tag jdk8u20-b09 for changeset 4d73f1e99f97
author | katleman |
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date | Wed, 09 Apr 2014 08:47:37 -0700 |
parents | a81bc2b2c4d3 |
children |
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/* * Copyright (c) 2014, 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 8032010 * @summary method lookup on an abstract method in a concrete class should be successful * @run main TestConcreteClassWithAbstractMethod */ import jdk.internal.org.objectweb.asm.ClassWriter; import jdk.internal.org.objectweb.asm.MethodVisitor; import static jdk.internal.org.objectweb.asm.Opcodes.*; /* * class T1 { public int m() {} } * class T2 { public abstract int m(); } * class T3 { public int m() {} } * * Call site: T3.test() { invokevirtual T2.m() } * T3.m() should be invoked */ public class TestConcreteClassWithAbstractMethod { static final String classT1 = "p1.T1"; static final String classT2 = "p1.T2"; static final String classT3 = "p1.T3"; static final String callerName = classT3; public static void main(String[] args) throws Exception { ClassLoader cl = new ClassLoader() { public Class<?> loadClass(String name) throws ClassNotFoundException { if (findLoadedClass(name) != null) { return findLoadedClass(name); } if (classT1.equals(name)) { byte[] classFile = dumpT1(); return defineClass(classT1, classFile, 0, classFile.length); } if (classT2.equals(name)) { byte[] classFile = dumpT2(); return defineClass(classT2, classFile, 0, classFile.length); } if (classT3.equals(name)) { byte[] classFile = dumpT3(); return defineClass(classT3, classFile, 0, classFile.length); } return super.loadClass(name); } }; cl.loadClass(classT1); cl.loadClass(classT2); cl.loadClass(classT3); //cl.loadClass(callerName).getDeclaredMethod("m"); cl.loadClass(callerName).newInstance(); int result = (Integer)cl.loadClass(callerName).getDeclaredMethod("test").invoke(null); System.out.println(""+result); } public static byte[] dumpT1() { ClassWriter cw = new ClassWriter(0); MethodVisitor mv; cw.visit(52, ACC_PUBLIC | ACC_SUPER, "p1/T1", null, "java/lang/Object", null); { 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(); } { mv = cw.visitMethod(ACC_PUBLIC, "m", "()I", null, null); mv.visitCode(); mv.visitFieldInsn(GETSTATIC, "java/lang/System", "out", "Ljava/io/PrintStream;"); mv.visitLdcInsn("p1/T1.m()"); mv.visitMethodInsn(INVOKEVIRTUAL, "java/io/PrintStream", "print", "(Ljava/lang/String;)V", false); mv.visitIntInsn(BIPUSH, 3); mv.visitInsn(IRETURN); mv.visitMaxs(2, 1); mv.visitEnd(); } cw.visitEnd(); return cw.toByteArray(); } public static byte[] dumpT2() { ClassWriter cw = new ClassWriter(0); MethodVisitor mv; cw.visit(52, ACC_PUBLIC | ACC_SUPER, "p1/T2", null, "p1/T1", null); { mv = cw.visitMethod(ACC_PUBLIC, "<init>", "()V", null, null); mv.visitCode(); mv.visitVarInsn(ALOAD, 0); mv.visitMethodInsn(INVOKESPECIAL, "p1/T1", "<init>", "()V", false); mv.visitInsn(RETURN); mv.visitMaxs(1, 1); mv.visitEnd(); } { mv = cw.visitMethod(ACC_PUBLIC + ACC_ABSTRACT, "m", "()I", null, null); mv.visitEnd(); } cw.visitEnd(); return cw.toByteArray(); } public static byte[] dumpT3() { ClassWriter cw = new ClassWriter(0); MethodVisitor mv; cw.visit(52, ACC_PUBLIC + ACC_SUPER, "p1/T3", null, "p1/T2", null); { mv = cw.visitMethod(ACC_PUBLIC, "<init>", "()V", null, null); mv.visitCode(); mv.visitVarInsn(ALOAD, 0); mv.visitMethodInsn(INVOKESPECIAL, "p1/T2", "<init>", "()V", false); mv.visitInsn(RETURN); mv.visitMaxs(1, 1); mv.visitEnd(); } { mv = cw.visitMethod(ACC_PUBLIC, "m", "()I", null, null); mv.visitCode(); mv.visitFieldInsn(GETSTATIC, "java/lang/System", "out", "Ljava/io/PrintStream;"); mv.visitLdcInsn("p1/T3.m()"); mv.visitMethodInsn(INVOKEVIRTUAL, "java/io/PrintStream", "print", "(Ljava/lang/String;)V", false); mv.visitIntInsn(BIPUSH, 2); mv.visitInsn(IRETURN); mv.visitMaxs(2, 1); mv.visitEnd(); } { mv = cw.visitMethod(ACC_PUBLIC + ACC_STATIC, "test", "()I", null, null); mv.visitCode(); mv.visitTypeInsn(NEW, "p1/T3"); mv.visitInsn(DUP); mv.visitMethodInsn(INVOKESPECIAL, "p1/T3", "<init>", "()V", false); mv.visitMethodInsn(INVOKEVIRTUAL, "p1/T2", "m", "()I", false); mv.visitInsn(IRETURN); mv.visitMaxs(3, 2); mv.visitEnd(); } cw.visitEnd(); return cw.toByteArray(); } }