code: private String getClassToolTip(ClassDoc classDoc, boolean isTypeLink) {
          Configuration configuration = m_writer.configuration;
          Utils utils = configuration.utils;
          if (isTypeLink) {
              return configuration.getText("doclet.Href_Type_Param_Title",
                  classDoc.name());
          } else if (classDoc.isInterface()){
              return configuration.getText("doclet.Href_Interface_Title",
                  utils.getPackageName(classDoc.containingPackage()));
          } else if (classDoc.isAnnotationType()) {
              return configuration.getText("doclet.Href_Annotation_Title",
                  utils.getPackageName(classDoc.containingPackage()));
          } else if (classDoc.isEnum()) {
              return configuration.getText("doclet.Href_Enum_Title",
                  utils.getPackageName(classDoc.containingPackage()));
          } else {
              return configuration.getText("doclet.Href_Class_Title",
                  utils.getPackageName(classDoc.containingPackage()));
          }
      }
docs: Given a class, return the appropriate tool tip.
  
  @param classDoc the class to get the tool tip for.
  @return the tool tip for the appropriate class.