/* * Copyright (c) 2008, 2009, 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.nio.fs; import java.lang.reflect.*; import java.security.AccessController; import java.security.PrivilegedAction; /** * Utility class for reflection. */ class Reflect { private Reflect() {} private static void setAccessible(final AccessibleObject ao) { AccessController.doPrivileged(new PrivilegedAction<Object>() { @Override public Object run() { ao.setAccessible(true); return null; }}); } /** * Lookup the field of a given class. */ static Field lookupField(String className, String fieldName) { try { Class<?> cl = Class.forName(className); Field f = cl.getDeclaredField(fieldName); setAccessible(f); return f; } catch (ClassNotFoundException x) { throw new AssertionError(x); } catch (NoSuchFieldException x) { throw new AssertionError(x); } } }