code: public String getDescriptionFirstSentence() {
          FeatureDescriptor fd = getFeatureDescriptor();
          if (fd == null) {
              return "";
          }
  
          return getTeaToolsUtils().getDescriptionFirstSentence(fd);
      }
docs: Returns the first sentence of the
  shortDescription.  Returns "" if the shortDescription is the same as
  the displayName (the default for reflection-generated
  FeatureDescriptors).