docs: protected Xid generateNewBranch() {
          if (tc.isEntryEnabled())
              Tr.entry(tc, "generateNewBranch");
  
          // Create a new Xid branch
          final XidImpl result = new XidImpl(_txServiceXid, ++_branchCount);
  
          if (tc.isEntryEnabled())
              Tr.exit(tc, "generateNewBranch", result);
          return result;
      }