HikariCP pool can be configured using JDBC URL:
```
HikariConfig config = new HikariConfig();
config.setJdbcUrl("jdbc:mysql://localhost:3306/simpsons");
```
or using data source properties
```
Properties props = new Properties();
props.setProperty("dataSourceClassName", "org.postgresql.ds.PGSimpleDataSource");
props.setProperty("dataSource.serverName", "localhost");
...
HikariConfig config = new HikariConfig(props);
HikariDataSource ds = new HikariDataSource(config)
```