Here you can find the source of isNull(BigDecimal bdg)
public static boolean isNull(BigDecimal bdg)
//package com.java2s; //License from project: Open Source License import java.math.BigDecimal; import java.util.List; public class Main { public static boolean isNull(String str) { return str == null || "".equals(str); }//from w w w . j av a2s . c om public static boolean isNull(List<Object> list) { return list == null || list.isEmpty(); } public static boolean isNull(Integer itg) { return itg == null; } public static boolean isNull(BigDecimal bdg) { return bdg == null; } }