Hibernate 4 Access to DialectResolutionInfo cannot be null when 'hibernate.dialect' not set

Question

I am using Hibernate latest version 4.3.5.Final.

My hibernate.cfg.xml file content:

Answer 1

I had the exactly the same problem and the issue was, that my computer was not entered in the pg_hba.conf of the postgres database that allows which Clients(IP-Adresses) are allowed to speak with the database