ect. Each property corresponds to a
 <code>property</code> element in the <code>persistence.xml</code> file
 or to a property set by the container.</div>
<dl>
<dt><span class="returnLabel">Returns:</span></dt>
<dd>Properties object</dd>
</dl>
</li>
</ul>
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<h4>getPersistenceXMLSchemaVersion</h4>
<pre><a href="https://docs.oracle.com/javase/8/docs/api/java/lang/String.html?is-external=true" title="class or