id	summary	reporter	owner	description	type	status	priority	milestone	component	version	resolution	keywords	cc
11657	[patch] User - createOsmUser memory optimization	shinigami	team	"little heuristic - when reading osm files, more changes in line have same user id usually.

Btw. what about using some primitive collections library? There are some Map<Long,..>, List<Double> etc.

We could remove it when JDK10 will come:)."	enhancement	closed	normal	15.08	Core	latest	fixed	performance