Issue with FrontBase PK generation in Cayenne 4.1

[Amedeo Mantica]

Hi,

I have noticed an NPE in PrimaryKey generation when using Frointbase database

Cayenne version 4.0.2 works fine, but in Cayenne 4.1 there is an issue in 
SQLTemplateAction

the line

PreparedStatement statement = connection.prepareStatement(compiled.getSql());

returns a null statement, causing NPE in statement.close(), even if the 
compiled SQL is valid.

Thoughts ?

Thank you
Amedeo