Here you can find the source of decodeBase64(String value)
public static byte[] decodeBase64(String value)
//package com.java2s; //License from project: Apache License import javax.xml.bind.DatatypeConverter; public class Main { public static byte[] decodeBase64(String value) { return DatatypeConverter.parseBase64Binary(value); }/*from w w w . j a v a2 s. c o m*/ }