code: private Content linkToUndocumentedDeclaredExceptions(
              Type[] declaredExceptionTypes, Set<String> alreadyDocumented,
              TagletWriter writer) {
          Content result = writer.getOutputInstance();
          //Add links to the exceptions declared but not documented.
          for (Type declaredExceptionType : declaredExceptionTypes) {
              if (declaredExceptionType.asClassDoc() != null &&
                  !alreadyDocumented.contains(
                          declaredExceptionType.asClassDoc().name()) &&
                  !alreadyDocumented.contains(
                          declaredExceptionType.asClassDoc().qualifiedName())) {
                  if (alreadyDocumented.size() == 0) {
                      result.addContent(writer.getThrowsHeader());
                  }
                  result.addContent(writer.throwsTagOutput(declaredExceptionType));
                  alreadyDocumented.add(declaredExceptionType.asClassDoc().name());
              }
          }
          return result;
      }
docs: Add links for exceptions that are declared but not documented.