Java tutorial
//package com.java2s; import java.util.Collection; import java.util.Map; public class Main { /** * Utility method to check if a collection is null or empty * * @param collection * @return */ public static boolean isNullOrEmpty(Collection<?> collection) { if (collection == null || collection.isEmpty()) return true; return false; } /** * Utility method to check if a map is null or empty * * @param map * @return */ public static boolean isNullOrEmpty(Map<?, ?> map) { if (map == null || map.isEmpty()) return true; return false; } }