1 /* 2 * Copyright (c) 2016, 2018, Red Hat, Inc. All rights reserved. 3 * 4 * This code is free software; you can redistribute it and/or modify it 5 * under the terms of the GNU General Public License version 2 only, as 6 * published by the Free Software Foundation. 7 * 8 * This code is distributed in the hope that it will be useful, but WITHOUT 9 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or 10 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License 11 * version 2 for more details (a copy is included in the LICENSE file that 12 * accompanied this code). 13 * 14 * You should have received a copy of the GNU General Public License version 15 * 2 along with this work; if not, write to the Free Software Foundation, 16 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. 17 * 18 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA 19 * or visit www.oracle.com if you need additional information or have any 20 * questions. 21 * 22 */ 23 24 /* @test TestSingleThreaded 25 * @summary test single worker threaded Shenandoah 26 * @key gc 27 * @requires vm.gc.Shenandoah & !vm.graal.enabled 28 * @run main/othervm -XX:+UnlockDiagnosticVMOptions -XX:+UnlockExperimentalVMOptions 29 * -XX:+UseShenandoahGC -XX:ShenandoahGCHeuristics=aggressive 30 * -XX:ParallelGCThreads=1 -XX:ConcGCThreads=1 TestSingleThreaded 31 */ 32 33 public class TestSingleThreaded { 34 35 public static void main(String[] args) { 36 // Bug should crash before we get here. 37 } 38 }