--- /dev/null 2018-11-30 10:10:44.238550338 +0100 +++ new/test/hotspot/jtreg/gc/shenandoah/options/TestAlwaysPreTouch.java 2018-11-30 10:24:28.472364647 +0100 @@ -0,0 +1,43 @@ +/* + * Copyright (c) 2016, 2018, Red Hat, Inc. All rights reserved. + * + * 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 TestAlwaysPreTouch + * @summary Check that Shenandoah's AlwaysPreTouch does not fire asserts + * @key gc + * @requires vm.gc.Shenandoah + * + * @run main/othervm -XX:+UnlockExperimentalVMOptions -XX:+UseShenandoahGC -XX:+AlwaysPreTouch -Xmx1g TestAlwaysPreTouch + * @run main/othervm -XX:+UnlockExperimentalVMOptions -XX:+UseShenandoahGC -XX:+AlwaysPreTouch -XX:ConcGCThreads=2 -Xmx1g TestAlwaysPreTouch + * @run main/othervm -XX:+UnlockExperimentalVMOptions -XX:+UseShenandoahGC -XX:+AlwaysPreTouch -XX:ParallelGCThreads=2 -Xmx1g TestAlwaysPreTouch + * @run main/othervm -XX:+UnlockExperimentalVMOptions -XX:+UseShenandoahGC -XX:+AlwaysPreTouch -Xms128m -Xmx1g TestAlwaysPreTouch + * @run main/othervm -XX:+UnlockExperimentalVMOptions -XX:+UseShenandoahGC -XX:+AlwaysPreTouch -Xms1g -Xmx1g TestAlwaysPreTouch + */ + +public class TestAlwaysPreTouch { + + public static void main(String[] args) throws Exception { + // checking the initialization before entering main() + } + +}