Here you can find the source of normaliseHeaders(String[] headers)
public static void normaliseHeaders(String[] headers)
//package com.java2s; /**// www .j a v a2s .c o m * Copyright (C) 2011 - present by OpenGamma Inc. and the OpenGamma group of companies * * Please see distribution for license. */ public class Main { public static void normaliseHeaders(String[] headers) { for (int i = 0; i < headers.length; i++) { headers[i] = headers[i].toLowerCase(); } } }