Here you can find the source of createMap()
private static Map<String, String[]> createMap()
//package com.java2s; //License from project: Open Source License import java.util.Collections; import java.util.HashMap; import java.util.Map; public class Main { private static Map<String, String[]> createMap() { Map<String, String[]> result = new HashMap<String, String[]>(); result.put("echoResponse", new String[] {}); return Collections.unmodifiableMap(result); }/*from www. j a v a2 s .c o m*/ }