Javelin of Lightning does the attack have disadvantage if target is outside normal range for a standard javelin?

@JeremyECrawford When using the special ability of Javelin of Lightning does the attack have disadvantage if target is outside normal range for a standard javelin rwa? Is this ability part of an Attack Action or some kind of magic item activation? RAI>RAW if they differ. 1

— Dave Williams (@DaveWil33) February 8, 2018

The attack portion of the javelin of lightning follows the normal rules for an attack with a javelin, and it can be done as part of the Attack action. #DnD https://t.co/nyTPLB7dj2

— Jeremy Crawford (@JeremyECrawford) February 8, 2018