docs: private void initEntityResolver() {
          final String entityResolveClazzName = System.getProperty( ExtensibleXmlParser.ENTITY_RESOLVER_PROPERTY_NAME );
          if ( entityResolveClazzName != null && entityResolveClazzName.length() > 0 ) {
              try {
  
                  final Class entityResolverClazz = classLoader.loadClass( entityResolveClazzName );
                  this.entityResolver = (EntityResolver) entityResolverClazz.newInstance();
              } catch ( final Exception ignoreIt ) {
              }
          }
      }