| /* |
| * Copyright (C) 2014 The Android Open Source Project |
| * Copyright (c) 1996, 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 java.lang; |
| |
| import java.lang.reflect.Method; |
| import libcore.util.EmptyArray; |
| |
| /** |
| * The {@code Void} class is an uninstantiable placeholder class to hold a |
| * reference to the {@code Class} object representing the Java keyword |
| * void. |
| * |
| * @author unascribed |
| * @since JDK1.1 |
| */ |
| public final |
| class Void { |
| |
| /** |
| * The {@code Class} object representing the pseudo-type corresponding to |
| * the keyword {@code void}. |
| */ |
| public static final Class<Void> TYPE = lookupType(); |
| |
| // Android-changed: Upstream code would use reflection to establish the value of "void.class". |
| // ART makes a native call instead because the reflection approach could lead to initialization |
| // of TYPE with the current, i.e. uninitialized, value of TYPE due to other Android changes. |
| @dalvik.annotation.optimization.FastNative |
| private static native Class<Void> lookupType(); |
| /* |
| @SuppressWarnings("unchecked") |
| private static Class<Void> lookupType() { |
| try { |
| Method method = Runnable.class.getMethod("run", EmptyArray.CLASS); |
| return (Class<Void>) method.getReturnType(); |
| } catch (Exception e) { |
| throw new AssertionError(e); |
| } |
| } |
| */ |
| |
| /* |
| * The Void class cannot be instantiated. |
| */ |
| private Void() {} |
| } |