Driver Bug jdbc7.0-1.2.jar.

I have downloaded a driver for postgres to develop in java, the driver i downloaded is jdbc7.0-1.2.jar
It works just fine untill i try to do something with the database from an event listener class.
Then it blows up with a java null pointer exception.
Everywhere else in the program i can read and write to the database but when i try to write a record into the database from the listener class i get null pointer error.
I have looked through it with the debugger and i have found out that the pgstream variable was null when i tried using the driver from the listener class and it has some values when i try to use it from anywhere else.
I will attach the code i am trying to build, you can run it and see what happnes, i have used Jbuilder 5.0 to run this code.

Thanks in advance,

Roman Levandovsky.