I think with context it will be pretty apparent whether you're talking about islands in the Pacific/Micronesia or a real time chat room.
Java is also a place name
I crack up every time I see the Java logo, a cup of coffee. I honestly doubt they knew it was an island with hundreds of millions of inhabitants when they picked that name.
Amazon is also a place name.
Not a chance, if Alphabet can call a molten salt power storage spinoff "Malta" (and really, really drive home the point that they were coming up with names by spitballing random "molten"-like sounds)