NeoLoad can only record Oracle Forms application configured in servlet mode i.e http mode and not in socket mode.

In one of the server response you should find that settings. From your recorded script if you use the "Flag request" feature and search on server responses that pattern:

var xconnectMode    = "socket"

If it is really servlet mode then you may have to force the JAVA plugin to use "localhost:8090" during your NeoLoad recording. It can be done in the JAVA control panel.