/* * Copyright (c) 2020, 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 8257513 * @requires vm.debug == true * @summary Stress testing code buffers resulted in an assertion failure due to not taking expand calls into account * which can fail more often with -XX:+StressCodeBuffers. Perform some more sanity flag testing. * @run main/othervm -Xcomp -XX:-TieredCompilation -XX:+StressCodeBuffers compiler.codecache.TestStressCodeBuffers * @run main/othervm -Xcomp -XX:+StressCodeBuffers compiler.codecache.TestStressCodeBuffers */ package compiler.codecache; import java.lang.invoke.MethodHandle; import java.lang.invoke.MethodHandles; import java.lang.invoke.MethodType; public class TestStressCodeBuffers { static MethodHandle permh; public static void main(String[] args) throws Exception { test(); } public static void test() throws Exception { MethodHandles.Lookup lookup = MethodHandles.publicLookup(); MethodHandle mh = lookup.findStatic(TestStressCodeBuffers.class, "bar", MethodType.methodType(void.class, int.class, long.class)); permh = MethodHandles.permuteArguments(mh, mh.type(), 0, 1); // Triggers assertion failure } public static void bar(int x, long y) {} }