public void addHeader(String key, String value){
		if(headers == null)
			headers = new TreeMap<String, String>(String.CASE_INSENSITIVE_ORDER);
		headers.put(key, value);
	}
public void addHeader ( String key , String value ) { if ( headers == null ) headers = new TreeMap < String , String > ( String . CASE_INSENSITIVE_ORDER ) ; headers . put ( key , value ) ; }
@since 1.4.1
Adds an additional header to be sent in the handshake.<br>
If the connection is already made, adding headers has no effect,
unless reconnect is called, which then a new handshake is sent.<br>
If a header with the same key already exists, it is overridden.
@param key Name of the header to add.
@param value Value of the header to add.