78b80150e0
Co-authored-by: Patricio Chilano Mateo <pchilanomate@openjdk.org> Co-authored-by: Alan Bateman <alanb@openjdk.org> Co-authored-by: Andrew Haley <aph@openjdk.org> Co-authored-by: Fei Yang <fyang@openjdk.org> Co-authored-by: Coleen Phillimore <coleenp@openjdk.org> Co-authored-by: Richard Reingruber <rrich@openjdk.org> Co-authored-by: Martin Doerr <mdoerr@openjdk.org> Reviewed-by: aboldtch, dholmes, coleenp, fbredberg, dlong, sspitsyn
39 lines
1.5 KiB
Java
39 lines
1.5 KiB
Java
/*
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* Copyright (c) 2024, Oracle and/or its affiliates. All rights reserved.
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* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
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*
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* This code is free software; you can redistribute it and/or modify it
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* under the terms of the GNU General Public License version 2 only, as
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* published by the Free Software Foundation.
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*
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* This code is distributed in the hope that it will be useful, but WITHOUT
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* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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* version 2 for more details (a copy is included in the LICENSE file that
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* accompanied this code).
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*
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* You should have received a copy of the GNU General Public License version
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* 2 along with this work; if not, write to the Free Software Foundation,
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* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
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*
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* Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
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* or visit www.oracle.com if you need additional information or have any
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* questions.
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*/
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import java.lang.management.ManagementFactory;
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import com.sun.management.HotSpotDiagnosticMXBean;
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class LockingMode {
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private LockingMode() { }
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/**
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* Returns true if using legacy locking mode.
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*/
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static boolean isLegacy() {
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return ManagementFactory.getPlatformMXBean(HotSpotDiagnosticMXBean.class)
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.getVMOption("LockingMode")
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.getValue()
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.equals("1");
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}
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} |