The BSF for trigger scripts can be extended with Java, the classes have to be in "IntegrityServer/data/java/classes".
Changes and additions are only visible to the script framework after the server ha been restarted.
Is there a way to reload new and changed classes without a server restart?
No, there is currently no way, besides restarting the server, to pickup and reload the new classes.
You'd have to post a product idea if you desire that functionality, and product management could review such request.
did you try this?
and what about this as a programmatic alternative:
I know that a former customer from us solved it, just I don't know how anymore 😞