Java tutorial
//package com.java2s; /* GRANITE DATA SERVICES Copyright (C) 2007 ADEQUATE SYSTEMS SARL This file is part of Granite Data Services. Granite Data Services is free software; you can redistribute it and/or modify it under the terms of the GNU Lesser General Public License as published by the Free Software Foundation; either version 3 of the License, or (at your option) any later version. Granite Data Services 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 Lesser General Public License for more details. You should have received a copy of the GNU Lesser General Public License along with this library; if not, see <http://www.gnu.org/licenses/>. */ import java.util.Collections; import java.util.Set; public class Main { @SuppressWarnings("unchecked") public static <T> Set<T> emptySet(Class<T> type) { return Collections.EMPTY_SET; } }