docs: public void setBaselineBugs(File baselineBugs) {
          if (baselineBugs != null && baselineBugs.length() > 0) {
              this.baselineBugs = baselineBugs;
          } else {
              if (baselineBugs != null) {
                  log("Warning: baseline bugs file " + baselineBugs
                          + (baselineBugs.exists() ? " is empty" : " does not exist"));
              }
              this.baselineBugs = null;
          }
      }