/*

 * 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

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 */

/**

 * @test TestAlwaysPretouch

 * @key gc

 * @requires vm.gc.Epsilon & !vm.graal.enabled

 * @summary Basic sanity test for Epsilon

 * @library /test/lib

 */

import jdk.test.lib.Platform;

import java.lang.management.GarbageCollectorMXBean;

import java.lang.management.ManagementFactory;

public class TestEpsilonEnabled {

  public static void main(String[] args) throws Exception {

    if (!isEpsilonEnabled()) {

      throw new IllegalStateException("Debug builds should have Epsilon enabled");

    }

  }

  public static boolean isEpsilonEnabled() {

    for (GarbageCollectorMXBean bean : ManagementFactory.getGarbageCollectorMXBeans()) {

      if (bean.getName().contains("Epsilon")) {

        return true;

      }

    }

    return false;

  }

}