/* * Copyright (c) 2011, 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.invoke; import java.lang.invoke.MethodHandle; /** * Private API used inside of java.lang.invoke.MethodHandles. * Interface implemented by every object which is produced by * {@link java.lang.invoke.MethodHandles#asInstance MethodHandles.asInstance}. * The methods of this interface allow a caller to recover the parameters * to {@code asInstance}. * This allows applications to repeatedly convert between method handles * and SAM objects, without the risk of creating unbounded delegation chains. */public interface WrapperInstance {    /** Produce or recover a target method handle which is behaviorally     *  equivalent to the SAM method of this object.     */    public MethodHandle getWrapperInstanceTarget();    /** Recover the SAM type for which this object was created.     */    public Class<?> getWrapperInstanceType();}