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/* * Copyright (c) 2001, 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 * or visit www.oracle.com if you need additional information or have any * questions. */ package sun.reflect; import java.lang.reflect.Field;import java.lang.reflect.Modifier;import java.security.AccessController;import sun.misc.Unsafe; /** Base class for sun.misc.Unsafe-based FieldAccessors for static    fields. The observation is that there are only nine types of    fields from the standpoint of reflection code: the eight primitive    types and Object. Using class Unsafe instead of generated    bytecodes saves memory and loading time for the    dynamically-generated FieldAccessors. */ abstract class UnsafeStaticFieldAccessorImpl extends UnsafeFieldAccessorImpl {    static {        Reflection.registerFieldsToFilter(UnsafeStaticFieldAccessorImpl.class,                                          new String[] { "base" });    }     protected Object base; // base     UnsafeStaticFieldAccessorImpl(Field field) {        super(field);        base = unsafe.staticFieldBase(field);    }}