le="class in jakarta.resource">ResourceException</a></pre>
<div class="block">Returns the user name for an active connection as known to 
  the underlying EIS instance. The name corresponds the resource
  principal under whose security context a connection to the
  EIS instance has been established.</div>
<dl>
<dt><span class="returnLabel">Returns:</span></dt>
<dd>String representing the user name</dd>
<dt><span class="throwsLabel">Throws:</span></dt>
<dd><code><a href="../ResourceException.html" title="cla