I tried "Check for Updates" in DevStudio 20161116.1305 and 20161113.1010. I used this update site:
[1] https://devstudio.redhat.com/10.0/snapshots/updates/

Eclipse was not able to detect any updates (I got "No updates were found" message).

Then I tried to install plugins using "Install new software".
Install new software->select Bring Your Own Eclipse->next->restart

Eclipse didn't detect any problems or conflicts during installation but after restart I got a lot of errors and eclipse didn't start.

rh-eclipse46-devstudio10.2.log.20161116.1305_update_2.txt
rh-eclipse46-devstudio10.2.log.20161113.1010_update.txt

I also noticed there isn't update site [1] by default after installation. I had to add it.