Lukasz Antoniak, this looks related to what you reported earlier on IRC. JdbcCoordinatorImpl#close(Statement) doesn't check statement#isClosed() before it does the getMaxRows and getQueryTimeout, leading to the same exception. If you were able to debug and get the stack that led to it, much appreciated. Steve mentioned:

[18:00] <sebersole> this is specifically in batching
[18:00] <sebersole> org.hibernate.engine.jdbc.batch.internal.NonBatchingBatch#addToBatch releases each statement as it is done with it

Similar for you, or something different?