Issue #2815: improve cache in 'CircleCI'
Issue #2815: improve cache in 'CircleCI'

rnveach/checkstyle,vboerchers/checkstyle,vboerchers/checkstyle,liscju/checkstyle,jochenvdv/checkstyle,romani/checkstyle,baratali/checkstyle,AkshitaKukreja30/checkstyle,sharang108/checkstyle,rnveach/checkstyle,AkshitaKukreja30/checkstyle,bansalayush/checkstyle,izishared/checkstyle,bansalayush/checkstyle,romani/checkstyle,romani/checkstyle,jonmbake/checkstyle,rnveach/checkstyle,izishared/checkstyle,rnveach/checkstyle,nikhilgupta23/checkstyle,checkstyle/checkstyle,romani/checkstyle,sharang108/checkstyle,sirdis/checkstyle,MEZk/checkstyle,romani/checkstyle,checkstyle/checkstyle,HubSpot/checkstyle,ilanKeshet/checkstyle,sirdis/checkstyle,bansalayush/checkstyle,baratali/checkstyle,MEZk/checkstyle,romani/checkstyle,sabaka/checkstyle,liscju/checkstyle,checkstyle/checkstyle,sharang108/checkstyle,izishared/checkstyle,nikhilgupta23/checkstyle,rnveach/checkstyle,liscju/checkstyle,AkshitaKukreja30/checkstyle,vboerchers/checkstyle,jonmbake/checkstyle,sabaka/checkstyle,checkstyle/checkstyle,sirdis/checkstyle,MEZk/checkstyle,ilanKeshet/checkstyle,HubSpot/checkstyle,jochenvdv/checkstyle,baratali/checkstyle,sabaka/checkstyle,checkstyle/checkstyle,jochenvdv/checkstyle,HubSpot/checkstyle,checkstyle/checkstyle,ilanKeshet/checkstyle,nikhilgupta23/checkstyle,jonmbake/checkstyle,rnveach/checkstyle