Java List Unmodifiable nullTolerantUnmodifiableList(List l)

Description

null Tolerant Unmodifiable List

License

Open Source License

Declaration

public static <T> List<T> nullTolerantUnmodifiableList(List<? extends T> l) 

Method Source Code

//package com.java2s;
/*******************************************************************************
 * Breakout Cave Survey Visualizer/*from  w ww  .  java  2 s . co m*/
 *
 * Copyright (C) 2014 James Edwards
 *
 * jedwards8 at fastmail dot fm
 *
 * 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.,
 * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
 *******************************************************************************/

import java.util.Collections;

import java.util.List;

public class Main {
    public static <T> List<T> nullTolerantUnmodifiableList(List<? extends T> l) {
        return l == null ? Collections.<T>emptyList() : Collections.unmodifiableList(l);
    }
}

Related

1. addMappedUnmodifiableListEntry(Map> map, K key, V value)
2. toUnmodifiableList(CharSequence... sequences)
3. toUnmodifiableList(T[] array)