Main.java Source code

Introduction

Here is the source code for Main.java

Source

//package com.java2s;
/*
 * USE - UML based specification environment
 * Copyright (C) 1999-2004 Mark Richters, University of Bremen
 *
 * 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 2 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, write to the Free Software
 * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
 */

import java.util.Collections;

import java.util.Set;

public class Main {
    /**
     * Returns <code>theSet</code> if it is not <code>null</code> or
     * an unmodifiable singleton empty set (see {@link Collections#emptySet()}).
     * @param <T>
     * @param theSet
     * @return
     */
    public static <T> Set<T> emptySetIfNull(final Set<T> theSet) {
        if (theSet == null)
            return Collections.emptySet();
        else
            return theSet;
    }
}