docs: protected String findInSourceFolders(File baseDir, String fileName) {
          String answer = findInFolder(baseDir, fileName);
          if (answer == null && baseDir.exists()) {
              answer = findInChildFolders(new File(baseDir, "src/main"), fileName);
              if (answer == null) {
                  answer = findInChildFolders(new File(baseDir, "src/test"), fileName);
              }
          }
          return answer;
      }