rs of this class will use simple parameter names.
 In some cases, for example, when processing IMAP protocol
 messages, individual segments of a multi-segment name
 (specified by RFC 2231) will be encountered and passed to
 the <a href="../../../javax/mail/internet/ParameterList.html#set-java.lang.String-java.lang.String-"><code>set(java.lang.String, java.lang.String)</code></a> method.  After all these segments are added
 to this ParameterList, they need to be combined to represent
 the logical parameter n