Hello all.
Version: Hibernate 5.1.0.Final.

When javax.persistence.query.timeout is set to "4000", for example, it is expected that Hibernate issues a
to the JDBC driver, some time after Connection.prepareStatement(), converting milliseconds to seconds.
Well, this is true after the following two statements:
However: when javax.persistence.query.timeout is set in either
and when the setHint() method is not explicitly used by application code, then the property is not passed to setQueryTimeout at all.
I was unable to tell whether this behavior is also shared by

I was able to verify, however, that javax.persistence.query.timeout specified in persistence.xml, for example, finds its way into EntityManager.getProperties().
But it does not get any further from there.
In fact, by tracing the code of EntityManager.find in a debugger I got the impression that the properties object of an EntityManager is simply ignored when it is processed in a Hibernate Session.
But I may be mistaken.
Please look into the matter and fix.

Thanks.

This is not an issue, you are just making mistaking EMF properties with query hints.

According to the JPA docs, the properties that you provide when you call:



mean that:



On the other hand, the query hints must be supplied explicitly when you create a Query instance.

No, I do not think that I am mistaking EMF properties with query hints.

The issue is: javax.persistence.query.timeout is a property supported by the standard.
It may legally appear either in persistence.xml and in a EMF properties map.
True?

Its intended effect is obviously to set a timeout value on each subsequent query.
Do we agree on that?

I do not think that it is an optional parameter that a persistence provider is free to ignore.
Do we agree on that, too?

So the question is: why does Hibernate not call when the parameter was present in one of those locations mentioned above?

Thanks, again.
H.

There is no section in the JPA specification to state your assumptions. But feel free to open a Jira issue, of course. If you supply a PR, it will have a higher priority to be integrated.