...
Make sure your GatewayPropDir property points to the nhinc property folder.
Validation tests are failing because of certificate path problems
The keystores were set up for you automatically. If this is the case, your gateway is using self-signed certificates. The Java keystore, gateway.jks, contains your gateway's certificate, which is known by the alias "gateway". This certificate has also been imported into the truststore, cacerts.jks, so that the gateway can make secured connections to itself. You may make secured connections to yourself when testing, so that your local gateway acts as both the requesting and responding gateway, and also at other times depending on your gateway configuration. If you want to send a message to a remote gateway, the same "gateway" certificate must be imported into the remote gateway's truststore.