Of the links provided by Steve above none actually talks about the `hibernate.transaction.jta.platform` property.
It would look far more professional if issues are being rejected and closed after due diligence is performed.

The only hibernate page that Google returns for this property is:
http://docs.jboss.org/hibernate/ogm/4.1/reference/en-US/html/ogm-configuration.html
which simply gives some examples without explanation what the property purpose is.