anchor.diff:          }
           if (rightPropertyValue == null) {
               rightPropertyValue = "";
  +        } else {
  +            rightPropertyValue = Encode.forHtml(rightPropertyValue);
           }
           
           authorNameNegate = request.getParameter("authorNameNegate"); 
  
positive.code:         if (mediaType == null) {
              mediaType = "";
          } else {
              hasParameters = true;
          }
          
  
negative.code:         
          leftOp = request.getParameter("leftOp");
          rightOp = request.getParameter("rightOp");
  
          if (rightOp == null) {
              rightOp = "";
          } else {
              rightOp = Encode.forHtml(rightOp);
          }
  
          if (leftOp == null) {
              leftOp = "";
          } else {
              leftOp = Encode.forHtml(leftOp);
          }
      }
  %>
  
  