Mercurial > hg > graal-jvmci-8
view graal/com.oracle.graal.jtt/src/com/oracle/graal/jtt/jdk/UnsafeAccess01.java @ 16041:f0efdd541094
less dependency between jtt tests and GraalCompilerTest constructors
author | Lukas Stadler <lukas.stadler@oracle.com> |
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date | Thu, 05 Jun 2014 18:14:14 +0200 |
parents | c6fcb4a36c6a |
children | 5ff49be5a02c |
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/* * Copyright (c) 2008, 2012, 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. */ package com.oracle.graal.jtt.jdk; import java.lang.reflect.*; import org.junit.*; import sun.misc.*; import com.oracle.graal.jtt.*; /* */ public class UnsafeAccess01 extends JTTTest { private static class TestClass { @SuppressWarnings("unused") private int field = 42; } public static int test() throws SecurityException, NoSuchFieldException { final Unsafe unsafe = getUnsafe(); final TestClass object = new TestClass(); final Field field = TestClass.class.getDeclaredField("field"); final long offset = unsafe.objectFieldOffset(field); final int value = unsafe.getInt(object, offset); return value; } static Unsafe getUnsafe() { try { final Field unsafeField = Unsafe.class.getDeclaredField("theUnsafe"); unsafeField.setAccessible(true); return (Unsafe) unsafeField.get(null); } catch (Exception e) { throw new Error(e); } } @Test public void run0() throws Throwable { runTest("test"); } }