connection leak when rollback

[ddyycao]

@Override
    public <V> V runInTransaction(Callable<V> callable, @Nullable TransactionIsolation isolation) {
        Objects.requireNotNull(callable);
        checkClosed();
        Transaction transaction = transactionProvider.get();
        if (transaction == null) {
            throw new TransactionException("no transaction");
        }
        try {
            transaction.begin(isolation);
            V result = callable.call();
            transaction.commit();  // will close connection
            return result;
        } catch (Exception e) {
            transaction.rollback();  //doesn't close connection
            throw new RollbackException(e);
        }
    }

transaction.rollback() in runInTransaction doesn't close connection,and cause connection leak

[npurushe]

Thanks for reporting, will be fixed in an upcoming update