JdbcDataSourceStat dataSourceStat = dataSource.getDataSourceStat();
StatFilter filter = new StatFilter();
filter.init(dataSource);
dataSourceStat.reset();
Assert.assertNull(StatFilter.getStatFilter(dataSource));
Assert.assertNull(dataSourceStat.getSqlStat(Integer.MAX_VALUE));
Assert.assertNull(dataSourceStat.getConnectionStat().getConnectLastTime());