Hi,
Thanks for the quick reply and explanation about the 404 
Yes, I’m behind a proxy that should certainly mess something.
I’ll check with the network administrator if everything is ok.
I’m using JDK 8, but not the latest one…
java version “1.8.0_161”
Java™ SE Runtime Environment (build 1.8.0_161-b12)
Java HotSpot™ 64-Bit Server VM (build 25.161-b12, mixed mode)
Thank you for the help