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/*
* Copyright (c) 2004, Oracle and/or its affiliates. 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. Oracle 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.
*
* Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
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*/
package sun.reflect;
import java.lang.reflect.Field;
import java.lang.reflect.Modifier;
import sun.misc.Unsafe;
/**
* Base class for sun.misc.Unsafe-based FieldAccessors for fields with
* final or volatile qualifiers. These differ from unqualified
* versions in that (1) they check for read-only status (2) they use
* the volatile forms of Unsafe get/put methods. (When accessed via
* reflection, finals act as slightly "lighter" forms of volatiles. So
* the volatile forms are heavier than necessary in terms of
* underlying reordering rules and memory barriers, but preserve
* correctness.)
*/
abstract class UnsafeQualifiedFieldAccessorImpl
extends UnsafeFieldAccessorImpl
{
protected final boolean isReadOnly;
UnsafeQualifiedFieldAccessorImpl(Field field, boolean isReadOnly) {
super(field);
this.isReadOnly = isReadOnly;
}
}