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/*
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* Copyright 2004 Sun Microsystems, Inc. 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. Sun designates this
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* particular file as subject to the "Classpath" exception as provided
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* by Sun in the LICENSE file that accompanied this code.
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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 Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
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* CA 95054 USA or visit www.sun.com if you need additional information or
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* have any questions.
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*/
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package sun.reflect;
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import java.lang.reflect.Field;
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import java.lang.reflect.Modifier;
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import sun.misc.Unsafe;
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/**
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* Base class for sun.misc.Unsafe-based FieldAccessors for fields with
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* final or volatile qualifiers. These differ from unqualified
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* versions in that (1) they check for read-only status (2) they use
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* the volatile forms of Unsafe get/put methods. (When accessed via
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* reflection, finals act as slightly "lighter" forms of volatiles. So
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* the volatile forms are heavier than necessary in terms of
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* underlying reordering rules and memory barriers, but preserve
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* correctness.)
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*/
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abstract class UnsafeQualifiedFieldAccessorImpl
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extends UnsafeFieldAccessorImpl
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{
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protected final boolean isReadOnly;
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UnsafeQualifiedFieldAccessorImpl(Field field, boolean isReadOnly) {
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super(field);
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this.isReadOnly = isReadOnly;
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}
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}
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