Liquibase liquibase = null;
try {
c = dataSource.getConnection();
liquibase = createLiquibase(c);
liquibase.getDatabase();
liquibase.update(new Contexts(config.getContexts()), new LabelExpression(config.getLabels()));
updateSuccessful = true;
} catch (SQLException e) {
throw new DatabaseException(e);
} catch (LiquibaseException ex) {
updateSuccessful = false;