code: private String getFormalTypeParameters(boolean namesOnly)
      {
          Collection<TypeParameterDeclaration> ftColl = _typeDecl.getFormalTypeParameters();
          if (ftColl.size() == 0)
              return ""; 
  
          StringBuffer sb = new StringBuffer("<");
          boolean isFirst = true;
          for (TypeParameterDeclaration tpDecl : ftColl)
          {
              if (!isFirst)
                  sb.append(",");
              else
                  isFirst = false;
          
              if (namesOnly)
                  sb.append(tpDecl.getSimpleName());
              else
                  sb.append(tpDecl.toString());
          }
          sb.append(">");
          return sb.toString();
      }
docs: Helper method to return type parameter information