esource</code> method searches through CLASSPATH until it
 finds the requested file and then stops. <p>

 The ordering of entries in the resource files matters.  If multiple
 entries exist, the first entries take precedence over the later
 entries.  For example, the first IMAP provider found will be set as the
 default IMAP implementation until explicitly changed by the
 application.  The user- or system-supplied resource files augment, they
 do not override, the default files included with the Jakarta Mail