Answer by Kunal for Could not open Hibernate Session for transaction on First Login

The answer is on my edit that was to add the following in my beans that have the connection data:

<!--      Configuration pool --><property name="validationQuery" value="SELECT 1" /><property name="validationInterval" value="34000" /><property name="testOnBorrow" value="true" /><property name="removeAbandoned" value="true" /><property name="removeAbandonedTimeout" value="55" />

I don't know why but @Paweł Głowacz 's answer didn't work for me.Thanks for your help guys