When sending a GET Integration request with an invalid id:
https://ci.cloud.redhat.com/api/integrations/v1.0/endpoints/111111

The response is:
RESTEASY003870: Unable to extract parameter from http request: javax.ws.rs.PathParam("id") value is

for public io.smallrye.mutiny.Uni com.redhat.cloud.notifications.routers.EndpointService.getEndpoint(javax.ws.rs.core.SecurityContext,java.util.UUID)
 
Expected to return just 404 return error code without body.

Adding this scenario as well:
When using a valid but non-existing id:

https://ci.cloud.redhat.com/api/integrations/v1.0/endpoints/75101339-e2b3-4780-9d71-c31a58b12345

the response body is:
HTTP 404 Not Found
 

Expected to return just 404 return error code without body.