public String value(String name) {
        final HttpHeader header = getHeader(name);
        return header == null ? null : header.value();
    }
public String value ( String name ) { final HttpHeader header = getHeader ( name ) ; return header == null ? null : header . value ( ) ; }
Get the header value for the provided header name. Null will be returned if the header
name isn't found.

@param name the name of the header to look for
@return The String value of the header, or null if the header isn't found