| /* |
| * Copyright (c) 2001, 2012, 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 jdk.internal.reflect; |
| |
| import java.lang.reflect.Field; |
| import java.lang.reflect.Modifier; |
| import java.security.AccessController; |
| import jdk.internal.misc.Unsafe; |
| |
| /** Base class for jdk.internal.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 final Object base; // base |
| |
| UnsafeStaticFieldAccessorImpl(Field field) { |
| super(field); |
| base = unsafe.staticFieldBase(field); |
| } |
| } |