I do feel some sincere struggle on his part. He does not seem relaxed. Modifying code/configs and run again. It is just that he did not really understand what is wrong with his setup or based on errors how should he go about fixing it. He even told me that he is spending weekends to finish his tasks.

Now I myself have long list of complaints about Spring/Microservice crap and its tendency to bury simple errors in 10 thick layers of abstraction. But that will be more relevant to IT related threads. It is because many other developers are dealing with it and still somehow make it work without spending days for an hour job.