Mercurial > hg > graal-compiler
view test/runtime/finalStatic/FinalStatic.java @ 22253:12e527c175b2
Using the non-deprecated RootNode constructors with a MockLanguage in tests
author | Jaroslav Tulach <jaroslav.tulach@oracle.com> |
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date | Mon, 20 Jul 2015 16:57:56 +0200 |
parents | 2e7b5143763f |
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 8028553 * @summary Test that VerifyError is not thrown when 'overriding' a static method. * @run main FinalStatic */ import java.lang.reflect.*; import jdk.internal.org.objectweb.asm.ClassWriter; import jdk.internal.org.objectweb.asm.MethodVisitor; import jdk.internal.org.objectweb.asm.Opcodes; /* * class A { static final int m() {return FAIL; } } * class B extends A { int m() { return PASS; } } * class FinalStatic { * public static void main () { * Object b = new B(); * b.m(); * } * } */ public class FinalStatic { static final String CLASS_NAME_A = "A"; static final String CLASS_NAME_B = "B"; static final int FAILED = 0; static final int EXPECTED = 1234; static class TestClassLoader extends ClassLoader implements Opcodes { @Override public Class findClass(String name) throws ClassNotFoundException { byte[] b; try { b = loadClassData(name); } catch (Throwable th) { // th.printStackTrace(); throw new ClassNotFoundException("Loading error", th); } return defineClass(name, b, 0, b.length); } private byte[] loadClassData(String name) throws Exception { ClassWriter cw = new ClassWriter(0); MethodVisitor mv; switch (name) { case CLASS_NAME_A: cw.visit(52, ACC_SUPER | ACC_PUBLIC, CLASS_NAME_A, 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"); mv.visitInsn(RETURN); mv.visitMaxs(1, 1); mv.visitEnd(); mv = cw.visitMethod(ACC_FINAL | ACC_STATIC, "m", "()I", null, null); mv.visitCode(); mv.visitLdcInsn(FAILED); mv.visitInsn(IRETURN); mv.visitMaxs(1, 1); mv.visitEnd(); } break; case CLASS_NAME_B: cw.visit(52, ACC_SUPER | ACC_PUBLIC, CLASS_NAME_B, null, CLASS_NAME_A, null); { mv = cw.visitMethod(ACC_PUBLIC, "<init>", "()V", null, null); mv.visitCode(); mv.visitVarInsn(ALOAD, 0); mv.visitMethodInsn(INVOKESPECIAL, CLASS_NAME_A, "<init>", "()V"); mv.visitInsn(RETURN); mv.visitMaxs(1, 1); mv.visitEnd(); mv = cw.visitMethod(ACC_PUBLIC, "m", "()I", null, null); mv.visitCode(); mv.visitLdcInsn(EXPECTED); mv.visitInsn(IRETURN); mv.visitMaxs(1, 1); mv.visitEnd(); } break; default: break; } cw.visitEnd(); return cw.toByteArray(); } } public static void main(String[] args) throws Exception { TestClassLoader tcl = new TestClassLoader(); Class<?> a = tcl.loadClass(CLASS_NAME_A); Class<?> b = tcl.loadClass(CLASS_NAME_B); Object inst = b.newInstance(); Method[] meths = b.getDeclaredMethods(); Method m = meths[0]; int mod = m.getModifiers(); if ((mod & Modifier.FINAL) != 0) { throw new Exception("FAILED: " + m + " is FINAL"); } if ((mod & Modifier.STATIC) != 0) { throw new Exception("FAILED: " + m + " is STATIC"); } m.setAccessible(true); if (!m.invoke(inst).equals(EXPECTED)) { throw new Exception("FAILED: " + EXPECTED + " from " + m); } System.out.println("Passed."); } }