jdk-24/test/hotspot/jtreg/gc/shenandoah/compiler/BarrierInInfiniteLoop.java
2020-01-28 11:28:52 +01:00

52 lines
1.7 KiB
Java

/*
* Copyright (c) 2020, 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
* @bug 8237837
* @summary Shenandoah: assert(mem == __null) failed: only one safepoint
* @key gc
* @requires vm.flavor == "server"
* @requires vm.gc.Shenandoah & !vm.graal.enabled
*
* @run main/othervm -XX:+UnlockExperimentalVMOptions -XX:+UseShenandoahGC -Xcomp -XX:CompileOnly=BarrierInInfiniteLoop::test -XX:CompileCommand=quiet BarrierInInfiniteLoop
*
*/
public class BarrierInInfiniteLoop {
private static Object field1 = new Object();
private static Object field2 = new Object();
public static void main(String[] args) {
test(false);
}
private static void test(boolean flag) {
if (flag) {
for (;;) {
field1 = field2;
}
}
}
}