Dear Elastic team, we would like to bring to your attention that you recently made a change to your source code and license agreement which violates the GPLv2 license under which the NXT code has been released.
The problematic commit is SHA 74138264 by myalcin81, 04/09/2017 01:15 AM "missing NXT strings converted to XEL strings on relevated Web API." which replaced all copyright messages from Nxt to XEL.
We kindly ask you to revert this change as soon as possible.

You are of course free to add a separate copyright notice for your work.