Change Variable Type	entitiesToReturn : List<ATSEntity> to entitiesToReturn : List<TimelineEntity> in method public getEntities(entityType String, limit Long, windowStart Long, windowEnd Long, primaryFilter NameValuePair, secondaryFilters Collection<NameValuePair>, fields EnumSet<Field>) : TimelineEntities in class org.apache.hadoop.yarn.server.applicationhistoryservice.timeline.MemoryTimelineStore