Can't connect to Postgres DB through Apache Tomcat?

Question

I'm trying to set up Geoportal 1.2.4, running on Apache Tomcat 8.5.6, Postgres 9.0.6_1, JDK 6, and jdbc(postgresql-9.1-901.jdbc4.jar). I cannot log into the Geoportal, When I log in using admin details (),I get this error "A database communication error has occurred" Checking the Apache logfiles, I see there's a severe error

I have tried a range of different entries in the config for the jdbc, but it always comes back to that error.

That is just my latest attempt. I have seen conflicting posts all over the net about exactly what the url should look like. I checked the rest of the config files carefully, and the editing within them was minimal and probably has no play on the error. If anyone could point out my mistake it would be appreciated.