tree 9d2a262efb854f039d7bd853db158da25ce40383
parent ecb4f746e48d99e8928d61289dc81291400b1e70
author Matt Benson <mbenson@apache.org> 1523556058 -0500
committer Matt Benson <mbenson@apache.org> 1539710900 -0500

rework use of groups, introducing GroupStrategy interface + implementations. Passes 1 additional TCK test AND allows validation of non-sequential groups without making multiple passes over the graph