I have a really simple domain class

```
class Person {

  String code

}

```

And I am also using default DataSource configuration:

```
dataSource {
  pooled = true
  driverClassName = "org.h2.Driver"
  username = "sa"
  password = ""
}
hibernate {
  cache.use_second_level_cache = true
  cache.use_query_cache = false
  cache.region.factory_class = 'net.sf.ehcache.hibernate.EhCacheRegionFactory'
}
// environment specific settings
environments {
  development {
    dataSource {
      dbCreate = "create-drop" // one of 'create', 'create-drop', 'update', 'validate', ''
      url = "jdbc:h2:mem:devDb;MVCC=TRUE;LOCK_TIMEOUT=10000"
      dialect = "org.hibernate.dialect.H2Dialect"
    }
  } ...

```

But when I open /dbconsole then I see that DB is empty and there is no tables. Why? What I am doing wrong?