Fixed some more coding standard issues

 - Mixed double and single quotes issue, updated as double quotes
 - Updated identifiers as camel case
 - Unnecessary use of fully qualified name 'Assert.assertNotNull' due to existing import 'org.testng.Assert'
 - The field name indicates a constant but its modifiers do not, added final keyword to the constant
 - Fields should be declared at the top of the class, before any method declarations, constructors, initializers or inner classes

client/src/main/resources/templates/js/htmlreporter.js

@@ -16,36 +16,36 @@
 $(document).ready(function () {
 
   "use strict";
-  var iframe = $('iframe#currentFrameId');
+  var iframe = $("iframe#currentFrameId");
 
   // logic to show and add the tabs.
-  $('.tab').click(function () {
-    $(this).parent().children().removeClass('active');
-    $(this).addClass('active');
-    var tabId = $(this).attr('id');
-    $('div.tabContentContainer').hide();
-    $('div#container_' + tabId).show();
+  $(".tab").click(function () {
+    $(this).parent().children().removeClass("active");
+    $(this).addClass("active");
+    var tabId = $(this).attr("id");
+    $("div.tabContentContainer").hide();
+    $("div#container_" + tabId).show();
   });
 
   // by default load the first visible one.
-  $('.tab:first').click();
+  $(".tab:first").click();
 
   // when a clickable item is clicked, propagate that click to the element with the same id on the
   // page ( the same method could be in several tabs ) and to the server.
-  $('.clickable').click(function () {
-    var content_id = $(this).attr('content_id');
+  $(".clickable").click(function () {
+    var contentId = $(this).attr("content_id");
 
-    if ("NI" === content_id) {
+    if ("NI" === contentId) {
       return;
     }
 
-    $('td.first').each(function () {
-      if ($(this).attr('content_id') === content_id) {
-        $(this).toggleClass('clickedOnce');
+    $("td.first").each(function () {
+      if ($(this).attr("content_id") === contentId) {
+        $(this).toggleClass("clickedOnce");
       }
     });
 
     // display the result in the iframe at the bottom of the page
-    iframe.attr('src', content_id + '.html');
+    iframe.attr("src", contentId + ".html");
   });
 });