code: public void populateByRollout(final Rollout rollout) {
          if (rollout == null) {
              return;
          }
  
          removeAllRows();
  
          final List<RolloutGroup> groups = rolloutGroupManagement
                  .findByRollout(PageRequest.of(0, quotaManagement.getMaxRolloutGroupsPerRollout()), rollout.getId())
                  .getContent();
          for (final RolloutGroup group : groups) {
              final GroupRow groupRow = addGroupRow();
              groupRow.populateByGroup(group);
          }
  
          updateValidation();
  
      }
docs: Populate groups by rollout
  
  @param rollout
  the rollout