/* * 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); } }