appeared in
https://hibernate.atlassian.net/browse/HHH-7689

org.hibernate.engine.jdbc.batch.internal.NonBatchingBatch

@Override
public void addToBatch() {
    ...
    - getStatements().clear();
    +
    + releaseStatements();
}

releaseStatements() - reason of hidden exception:

DEBUG org.hibernate.engine.jdbc.internal.JdbcCoordinatorImpl ~ Exception clearing maxRows/queryTimeout [You can't operate on a closed Statement!!!]

It work's correct in 4.2.13 version with getStatements().clear()