Here you can find the source of newEnumSet(Class
public static <T extends Enum<T>> EnumSet<T> newEnumSet(Class<T> klass)
//package com.java2s; /* /*from ww w .jav a 2s . c o m*/ * Sourcerer: an infrastructure for large-scale source code analysis. * Copyright (C) by contributors. See CONTRIBUTORS.txt for full list. * * This program is free software: you can redistribute it and/or modify * it under the terms of the GNU General Public License as published by * the Free Software Foundation, either version 3 of the License, or * (at your option) any later version. * This program 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 for more details. * You should have received a copy of the GNU General Public License * along with this program. If not, see <http://www.gnu.org/licenses/>. */ import java.util.EnumSet; public class Main { public static <T extends Enum<T>> EnumSet<T> newEnumSet(Class<T> klass) { return EnumSet.noneOf(klass); } }