Polyurethane and polyurea compositions for golf balls with improved stability of the curative blend, wherein the curative blend includes a pigment, a curing agent, and a compatible freezing point depressing agent so that the curative blend has a lower freezing point than the curing agent by itself and the blend does not lose pigment dispersion upon solidification and subsequent thawing. In one aspect, an endpoint reference is created by a component of the pub-sub system. An operation inhibition unit inhibits execution of the predetermined operation by the operation unit when existence of the moving object is detected by the detection unit. In the event of a main server failure, the backup server gives users of the workstations the option to continue running applications on the backup server using the selected backup data.