Here you can find the source of isEmpty(List> collection)
public static boolean isEmpty(List<?> collection)
//package com.java2s; /*//from w ww . j a v a 2 s . co m * Copyright 2013 (c) MuleSoft, Inc. * * Licensed under the Apache 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.apache.org/licenses/LICENSE-2.0 * * 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.List; public class Main { public static boolean isEmpty(List<?> collection) { return collection == null || collection.isEmpty(); } }