code: public String getOwnerName(CmsObject cms) {
  
          try {
              return CmsPrincipal.readPrincipalIncludingHistory(cms, getOwnerId()).getName();
          } catch (CmsException e) {
              return getOwnerId().toString();
          }
      }
docs: Returns the owner name.<p>
  
  @param cms the current cms context
  
  @return the owner name