--- /dev/null 2018-05-14 10:08:09.016338956 +0200 +++ new/test/hotspot/jtreg/gc/epsilon/TestUpdateCountersSteps.java 2018-06-06 18:21:29.855369837 +0200 @@ -0,0 +1,39 @@ +/* + * Copyright (c) 2017, 2018, Red Hat, Inc. 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 TestUpdateCountersSteps + * @key gc + * @requires vm.gc.Epsilon + * @summary Test EpsilonUpdateCountersStep works + * @run main/othervm -XX:+UnlockExperimentalVMOptions -XX:+UseEpsilonGC -Xlog:gc -XX:EpsilonUpdateCountersStep=1 TestUpdateCountersSteps + * @run main/othervm -XX:+UnlockExperimentalVMOptions -XX:+UseEpsilonGC -Xlog:gc -XX:EpsilonUpdateCountersStep=10 TestUpdateCountersSteps + * @run main/othervm -XX:+UnlockExperimentalVMOptions -XX:+UseEpsilonGC -Xlog:gc -XX:EpsilonUpdateCountersStep=100 TestUpdateCountersSteps + * @run main/othervm -XX:+UnlockExperimentalVMOptions -XX:+UseEpsilonGC -Xlog:gc -XX:EpsilonUpdateCountersStep=1000 TestUpdateCountersSteps + */ + +public class TestUpdateCountersSteps { + public static void main(String[] args) throws Exception { + System.out.println("Hello World"); + } +}