JdbcSession should close connection after execution

[krzyk]

Leaving a stale open connection leads to problems with connection pools (they don't know if the connection is still used).
JdbcSession should either have an explicit close connection in finally clause in run method or have a seperate public close method that will close it.

[yegor256]

thanks for reporting!

[dmarkov]

@yegor256 please don't close the issue, ask @krzyk to do this instead, since he is the author of it

[yegor256]

@krzyk could you please close it if the problem is fixed

[krzyk]

Yes, it is fixed