Server was started and allowed to run unoccupied with no error.
After player joins server, there is a delay where the player can move about in the world, then the server crashes silently. Error persists after downgrading server to 1.14.1, then re-upgrading to 1.14.2. When the world is played in single player, there are no crashes.
Error has been triggered 4 times.
I'm not sure what would be required for reproduction other than the world folder, but as it is 913 MB in size, I will wait on providing it until requested.
Potential related bugs:
MC-138550 has lag leading to crashes, but there is no lag before crash in my scenario.
Environment
Windows 7 64-bit, java 1.8.0_66 64-bit
This is always caused by the server being heavily overworked and shutting down because of that. Hence, probably caused by MC-138550, even if you didn't notice any lag.
Please note that MC-138550 is about server lag, not client lag. Your FPS can be amazing, but this issue can still occur.