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/*
* 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.
*/
import java.lang.management.GarbageCollectorMXBean;
import java.lang.management.ManagementFactory;
/*
* @test TestEnabled
* @key gc
* @requires vm.gc.Shenandoah & vm.gc == "null" & !vm.graal.enabled
* @run main/othervm -Dexpected=false -Xmx64m TestEnabled
* @run main/othervm -Dexpected=true -Xmx64m -XX:+UnlockExperimentalVMOptions -XX:+UseShenandoahGC TestEnabled
*/
/*
* @test TestEnabledAlready
* @key gc
* @requires vm.gc.Shenandoah & vm.gc == "Shenandoah" & !vm.graal.enabled
* @run main/othervm -Dexpected=true -Xmx64m TestEnabled
*/
public class TestEnabled {
public static void main(String... args) {
boolean expected = Boolean.getBoolean("expected");
boolean actual = isEnabled();
if (expected != actual) {
throw new IllegalStateException("Error: expected = " + expected + ", actual = " + actual);
}
}
public static boolean isEnabled() {
for (GarbageCollectorMXBean bean : ManagementFactory.getGarbageCollectorMXBeans()) {
if (bean.getName().contains("Shenandoah")) {
return true;
}
}
return false;
}
}
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