rt/emul/compact/src/main/java/sun/invoke/empty/Empty.java
author Jaroslav Tulach <jaroslav.tulach@apidesign.org>
Sat, 09 Aug 2014 11:11:13 +0200
branchjdk8-b132
changeset 1646 c880a8a8803b
permissions -rw-r--r--
Batch of classes necessary to implement invoke dynamic interfaces. Taken from JDK8 build 132
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/*
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 * Copyright (c) 2009, 2011, Oracle and/or its affiliates. All rights reserved.
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 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
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 *
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 * This code is free software; you can redistribute it and/or modify it
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 * under the terms of the GNU General Public License version 2 only, as
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 * published by the Free Software Foundation.  Oracle designates this
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 * particular file as subject to the "Classpath" exception as provided
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 * by Oracle in the LICENSE file that accompanied this code.
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 *
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 * This code is distributed in the hope that it will be useful, but WITHOUT
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 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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 * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
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 * version 2 for more details (a copy is included in the LICENSE file that
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 * accompanied this code).
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 *
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 * You should have received a copy of the GNU General Public License version
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 * 2 along with this work; if not, write to the Free Software Foundation,
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 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
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 *
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 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
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 * or visit www.oracle.com if you need additional information or have any
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 * questions.
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 */
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package sun.invoke.empty;
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/**
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 * An empty class in an empty package.
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 * Used as a proxy for unprivileged code, since making access checks
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 * against it will only succeed against public methods in public types.
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 * <p>
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 * This class also stands (internally to sun.invoke) for the type of a
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 * value that cannot be produced, because the expression of this type
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 * always returns abnormally.  (Cf. Nothing in the closures proposal.)
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 * @author jrose
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 */
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public class Empty {
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    private Empty() { throw new InternalError(); }
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}