Main.java Source code

Introduction

Here is the source code for Main.java

Source

//package com.java2s;
/**
 * Copyright 2005-2015 The Kuali Foundation
 *
 * Licensed under the Educational Community License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 * http://www.opensource.org/licenses/ecl2.php
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

import java.util.Collections;

import java.util.Map;

public class Main {
    /**
     * Functions as per {@link Collections#unmodifiableMap(Map)} with the exception that if the
     * given map is null, this method will return an unmodifiable empty map as per
     * {@link Collections#emptyMap()}.
     * 
     * @param map the map for which an unmodifiable view is to be returned
     * @return an unmodifiable view of the specified set, or an unmodifiable empty set if the given
     *         set is null
     */
    public static <K, V> Map<K, V> unmodifiableMapNullSafe(Map<? extends K, ? extends V> map) {
        if (map == null) {
            return Collections.emptyMap();
        }
        return Collections.unmodifiableMap(map);
    }
}