/* * Copyright (c) 2022, 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 8296924 * @summary Tests compilation of an unreachable unsafe access with a bad base address. * @modules java.base/jdk.internal.misc:+open * @run main/othervm -XX:CompileCommand=compileonly,TestBadBaseAddress::test -XX:-TieredCompilation -Xcomp TestBadBaseAddress */ import java.lang.reflect.*; import sun.misc.*; public class TestBadBaseAddress { private static Unsafe unsafe; static { try { Field field = Unsafe.class.getDeclaredField("theUnsafe"); field.setAccessible(true); unsafe = (Unsafe)field.get(null); } catch (Exception e) { throw new RuntimeException(e); } } public static void test(boolean b) { if (b) { unsafe.putLong(-1, 42); } } public static void main(String[] args) { test(false); } }