I have had exactly the same problem (we always use the USB cable to do the imagine and the Java download). The funny thing it was working fine, I left the driver station with the build team for a night, and when I got back the next day it was broken. I have reimaged and reinstalled Java several times, deleted and reinstalled the WPILib plugin for Eclipse, and can't get it to go away (even using a different laptop that had also been working at the start). We finally commented out the check in the build file (there was a thread here from last year I think), as I *know* that I am running the 2017 version. If you figure it out, please make sure to post the answer

None of the laptops have been connected to a 2016 RoboRIO at this point, so it's hard to see how something could have gotten munged in the settings anywhere.