* one exception to this rule is default listeners: all default listeners
* found will be added to a list in the order that they are read from the
* instance document(s).
*/
public void processPersistenceUnitMetadata() {
m_file = new MetadataFile(this);
if (m_persistenceUnitMetadata != null) {
// Set the accessible object for persistence unit metadata.
m_persistenceUnitMetadata.initXMLObject(m_file, this);