Welcome to the forum Johan. I can certainly understand why your head would be spinning for your various sources of information and you are wise to suspect that there is a lot of misleading or outright false information to be found out there on these marvelous blades. And then many things are simply a matter of differences of opinion or belief systems that can't ever truly be settled. My best advice to you would be to take some time searching our archives where you will find all these various opinions, along with a few cold, hard facts, living in residence.
As for your first keris, we could certainly use some larger photos, but they do seem relatively sharp and clear. From what i can see it is indeed an antique keris from Jawa. If you posted photos of the sheath and the hilt we good even place it, dress wise, in a more specific area of that island. I can't really see the pamor pattern very well in these pictures, but the blade looks a bit out of stain anyway so even better photos might not give us a clear answer.