eturns the JTA-enabled data source to be used by the
 persistence provider. The data source corresponds to the
 <code>jta-data-source</code> element in the <code>persistence.xml</code> file or is
 provided at deployment or by the container.</div>
<dl>
<dt><span class="returnLabel">Returns:</span></dt>
<dd>the JTA-enabled data source to be used by the 
 persistence provider</dd>
</dl>
</li>
</ul>
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<h4>getNonJtaDataS