docs: private String extractNumericVersion(Collection<String> versionStrings) {
          if (versionStrings == null) {
              return "";
          }
          for (String value : versionStrings) {
              String releaseValue = calculateReleaseVersion(value);
              if (!releaseValue.equals(value)) {
                  return releaseValue;
              }
          }
          return "";
      }