code: public long sumNclocOfBiggestLongLivingBranch(DbSession dbSession, SumNclocDbQuery dbQuery) {
      Long ncloc = mapper(dbSession).sumNclocOfBiggestLongLivingBranch(
        NCLOC_KEY, KeyType.BRANCH, BranchType.LONG, dbQuery.getOrganizationUuid(), dbQuery.getOnlyPrivateProjects(), dbQuery.getProjectUuidToExclude());
      return ncloc == null ? 0L : ncloc;
    }
docs: Example:
  If Main Branch = 0 LOCs (provisioned but never analyzed) and the "largest long-lived branch" is 120 LOCs, I'm expecting to consider the value 120.
  If Main Branch = 100 LOCs and the "largest long-lived branch" is 120 LOCs, I'm expecting to consider the value 120.
  If Main Branch = 100 LOCs and the "largest long-lived branch" is 80 LOCs, I'm expecting to consider the value 100.