return XSDFileSchemaTreePopulator.getSchemaTree( fileName );
return new XSDFileSchemaTreePopulator().getSchemaTree( fileName );
	public static ATreeNode getSchemaTree( String fileName )			throws OdaException	{		if( fileName.toUpperCase().endsWith(".XSD"))			return XSDFileSchemaTreePopulator.getSchemaTree( fileName );		else			return new XMLFileSchemaTreePopulator().getSchemaTree( fileName );	}