anchor.diff:              {
                   "source": ${link.from.sequence},
                   "target": ${link.to.sequence},
  -                "value": ${link.histogram.sampleCount},
  -                "histogram": ${link.histogram}
  +                "value" : ${link.histogram.totalCount},
  +                "error" : ${link.histogram.errorCount},
  +                "slow" : ${link.histogram.slowCount},
  +                "histogram" : ${link.histogram}
               }
               <c:if test="${!status.last}">,
               </c:if>
  
positive.code:                    <c:forEach items="${sp.annotationBoList}" var="ano" varStatus="annoStatus">
                         <tr>
                             <td>${span.depth}</td>
                             <td>${ano.key}</td>
                             <td>${ano.value}</td>
                             <td><c:if test="${annoStatus.first}">${sp.endPoint}</c:if></td>
                             <td><c:if test="${annoStatus.first}">${sp.elapsed}</c:if></td>
  
negative.code:                    <c:forEach items="${subSp.annotationBoList}" var="ano" varStatus="annoStatus">
                         <tr>
                             <td>${span.depth}</td>
                             <td>${ano.keyName}</td>
                             <td>${ano.value}</td>
                             <td><c:if test="${annoStatus.first}">${subSp.endPoint}</c:if></td>
                             <td><c:if test="${annoStatus.first}">${subSp.endElapsed}</c:if></td>
  