When using Hibernate with the latest version, or any of the past ten versions, of the PostgreSQL JDBC driver version an "Unexpected error trying to gauge level of JDBC REF_CURSOR support : null" error occurs when starting up my application. The error is only viewable after setting the Hibernate log level to "DEBUG" which causes me to think it could be a Hibernate issue.

It causes my application to hang when starting up for anywhere between eighty to three hundred seconds. After startup everything works fine. I am using the following driver version:

(Gradle Dependency style)
'org.postgresql:postgresql:9.3-1102-jdbc41'

My application is a Spring Boot application and the hanging happens upon starting that application.

I saw the error after turning on Hibernate logging. The full log is at the following paste.

http://pastebin.com/CAjSyQw9

Does this sort of an error seem like an issue with the Hibernate or the JDBC driver?