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Hello. I have a question *how to properly close connection and free all* `TransactionManager`s and `Transaction`s?
I am using Hikari data source and tried multiple combinations, like:
```        TransactionManager.closeAndUnregister(database)
        TransactionManager.resetCurrent(TransactionManager.manager)
        hikariDataSource.close()

// option 2
        TransactionManager.closeAndUnregister(database)
        TransactionManager.resetCurrent(null)
        hikariDataSource.close()```
I used Intellij memory check to verify everything works, but there are still some classes which weren't deleted. I mean `ThreadLocalTransaction` and `ThreadLocalTransactionManager`. It causes issues when I create new connection. Some transactions will be broken then.

When I check referring objects of `ThreadLocalTransaction`, there is something called `EntityCache` , but I am not sure why this reference exists because I don't use `Exposed` DAO API. Only `DSL`.