prepare to fix IDEA-118417 — cleanup
prepare to fix IDEA-118417 — cleanup
continue IDEA-118417 — get rid of myAvailableUsersLock, avoid nested synchronization (flushOnlineUsers)
use Time.SECOND instead of custom const
prepare to fix IDEA-118417 — cleanup
continue IDEA-118417 — get rid of myCachedUsersLock, avoid nested synchronization
cleanup
cleanup
cleanup
cleanup
IDEA-118417 IDEA freezes
extract "Node interpreter" title to a constant