A holds the lock; B asks with Timeouts.NO_WAIT
B exception: org.hibernate.exception.LockTimeoutException
    caused by org.h2.jdbc.JdbcSQLTimeoutException
      H2 message: Timeout trying to lock table "ACCOUNT"; SQL statement:
    caused by org.h2.mvstore.MVStoreException

select statements B sent:
select a1_0.id,a1_0.balance,a1_0.owner from Account a1_0 where a1_0.id=? for update nowait