s="block">Get the transaction object that represents the transaction
 context of the calling thread.</div>
<dl>
<dt><span class="returnLabel">Returns:</span></dt>
<dd>the <code>Transaction</code> object representing the
          transaction associated with the calling thread.</dd>
<dt><span class="throwsLabel">Throws:</span></dt>
<dd><code><a href="../../javax/transaction/SystemException.html" title="class in javax.transaction">SystemException</a></code> - Thrown if the transaction manager
    encounters a