/* * Copyright (c) 2020 Alibaba Group Holding Limited. 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. Alibaba designates this * particular file as subject to the "Classpath" exception as provided * by Oracle in the LICENSE file that accompanied this code. * * 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. */ /* * @test * @library /lib/testlibrary * @summary Verify timer could be processed when we're yielding * @requires os.family == "linux" * @run main/othervm -XX:+UseWisp2 -Dcom.alibaba.wisp.carrierEngines=1 YieldTimerTest * @run main/othervm -XX:+UseWisp2 -Dcom.alibaba.wisp.carrierEngines=1 -Dcom.alibaba.wisp.highPrecisionTimer=true YieldTimerTest */ import java.util.concurrent.Executors; import java.util.concurrent.Future; import java.util.concurrent.TimeUnit; public class YieldTimerTest { public static void main(String[] args) throws Exception { Future future = Executors.newSingleThreadExecutor().submit(() -> { try { Thread.sleep(200); } catch (InterruptedException e) { e.printStackTrace(); } }); new Thread(() -> { while (true) { Thread.yield(); } }).start(); future.get(1, TimeUnit.SECONDS); } }