I am running a CF instance using commandBox (box server start cfengine=adobe@2023.0.3+330486) When I try to add a Derby database as a datasource I get this error

Connection verification failed for data source: CFTrainingDSN

java.sql.SQLException: Timed out trying to establish connection.

Is there a jar file that I need or something, thanks!

“Time out” usually means your connection information is incorrect - or the attempt to connect is being firewalled

I thought Derby is an in-memory database, so I'm curious exactly what socket connection is even being made here.

I used

box cfpm install derby

, to install Derby, and I just tried to install the datasource using a different version of the database, but I get the same error.

Is there a full stack trace of the error?

No, just the generic error, see attached image

@johnbarrett You need to turn on robust exception messages.

I got it, here's the full stack trace in a pdf file