On page 419, first paragraph there is a not closed parenthesis right after "value of the entity instance":

"... value of the entity instance (this little difference, compared to Hibernate’s save() method, will be important again when you implement conversations in “Delaying insertion until flush-time” in chapter 11, section 11.2.3."
-------------
On page 420, first paragraph, there is a dot after the "generic method":

"You don’t need to cast the returned value of the find() operation; it’s a generic method. and its return type is set"
-------------
on page 423, the code example: "Item.setDescription(...);" instead of "item.setDescription(...);".
-------------
on page 427, last paragraph first sentence ends with a comma, right before "Hence":

"The persistence context of the injected container-managed EntityManager is bound to the scope of the transaction, Hence, ..."

regards.

Thanks, added to errata.