abel">Throws:</span></dt>
<dd><code><a href="../../javax/transaction/NotSupportedException.html" title="class in javax.transaction">NotSupportedException</a></code> - Thrown if the thread is already
    associated with a transaction and the Transaction Manager
    implementation does not support nested transactions.</dd>
<dd><code><a href="../../javax/transaction/SystemException.html" title="class in javax.transaction">SystemException</a></code> - Thrown if the transaction manager
    encounters an unexpect