code: public static String modifierMatrixToHtml() {
          final StringBuffer sb = new StringBuffer();
          sb.append("<table border=\"1\">\n");
  
          // Header
          sb.append("<tr>");
          sb.append("<th>&nbsp;</th>");
          for (int type = FIELD; type <= INNER_INTERFACE; type++) {
              sb.append("<th>");
              sb.append(TYPE_NAMES[type]);
              sb.append("</th>");
          }
          sb.append("</tr>\n");
  
          // Content
          for (int modifier = ABSTRACT; modifier <= STRICTFP; modifier++) {
              sb.append("<tr>");
              sb.append("<td>");
              sb.append(MODIFIER_NAMES[modifier]);
              sb.append("</td>");
              for (int type = FIELD; type <= INNER_INTERFACE; type++) {
                  sb.append("<td>");
                  sb.append(MODIFIERS_MATRIX[modifier][type]);
                  sb.append("</td>");
              }
              sb.append("</tr>\n");
          }
          sb.append("</table>\n");
          return sb.toString();
      }
docs: Create a simple HTML table for the modifier matrix. This is helpful to
  check if the matrix is valid.
  
  @return Modifier matrix HTML table.