diff --git a/src/xdocs/beginning_development.xml b/src/xdocs/beginning_development.xml
index 42719a9f8..4f6c9f8f9 100644
--- a/src/xdocs/beginning_development.xml
+++ b/src/xdocs/beginning_development.xml
@@ -11,9 +11,9 @@
 
   <head>
     <title>Beginning Development</title>
-    <script type="text/javascript" src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.3/jquery.min.js"></script>
-    <script type="text/javascript" src="js/anchors.js"></script>
-    <script type="text/javascript" src="js/google-analytics.js"></script>
+    <script type="text/javascript" src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.3/jquery.min.js"/>
+    <script type="text/javascript" src="js/anchors.js"/>
+    <script type="text/javascript" src="js/google-analytics.js"/>
     <link rel="icon" href="images/favicon.png" type="image/x-icon" />
     <link rel="shortcut icon" href="images/favicon.ico" type="image/ico" />
   </head>
diff --git a/src/xdocs/checks.xml b/src/xdocs/checks.xml
index 80a966528..fd15eb0b6 100644
--- a/src/xdocs/checks.xml
+++ b/src/xdocs/checks.xml
@@ -11,9 +11,9 @@
 
   <head>
     <title>Standard Checks</title>
-    <script type="text/javascript" src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.3/jquery.min.js"></script>
-    <script type="text/javascript" src="js/anchors.js"></script>
-    <script type="text/javascript" src="js/google-analytics.js"></script>
+    <script type="text/javascript" src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.3/jquery.min.js"/>
+    <script type="text/javascript" src="js/anchors.js"/>
+    <script type="text/javascript" src="js/google-analytics.js"/>
     <link rel="icon" href="images/favicon.png" type="image/x-icon" />
     <link rel="shortcut icon" href="images/favicon.ico" type="image/ico" />
   </head>
diff --git a/src/xdocs/config.xml b/src/xdocs/config.xml
index 40406e94c..f487b2840 100644
--- a/src/xdocs/config.xml
+++ b/src/xdocs/config.xml
@@ -11,9 +11,9 @@
 
   <head>
     <title>Configuration</title>
-    <script type="text/javascript" src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.3/jquery.min.js"></script>
-    <script type="text/javascript" src="js/anchors.js"></script>
-    <script type="text/javascript" src="js/google-analytics.js"></script>
+    <script type="text/javascript" src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.3/jquery.min.js"/>
+    <script type="text/javascript" src="js/anchors.js"/>
+    <script type="text/javascript" src="js/google-analytics.js"/>
     <link rel="icon" href="images/favicon.png" type="image/x-icon" />
     <link rel="shortcut icon" href="images/favicon.ico" type="image/ico" />
   </head>
diff --git a/src/xdocs/config_annotation.xml b/src/xdocs/config_annotation.xml
index af7fb1c7e..10af18a7a 100644
--- a/src/xdocs/config_annotation.xml
+++ b/src/xdocs/config_annotation.xml
@@ -11,9 +11,9 @@
 
   <head>
     <title>Annotations</title>
-    <script type="text/javascript" src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.3/jquery.min.js"></script>
-    <script type="text/javascript" src="js/anchors.js"></script>
-    <script type="text/javascript" src="js/google-analytics.js"></script>
+    <script type="text/javascript" src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.3/jquery.min.js"/>
+    <script type="text/javascript" src="js/anchors.js"/>
+    <script type="text/javascript" src="js/google-analytics.js"/>
     <link rel="icon" href="images/favicon.png" type="image/x-icon" />
     <link rel="shortcut icon" href="images/favicon.ico" type="image/ico" />
   </head>
diff --git a/src/xdocs/config_blocks.xml b/src/xdocs/config_blocks.xml
index 38af5c465..55e1a5de1 100644
--- a/src/xdocs/config_blocks.xml
+++ b/src/xdocs/config_blocks.xml
@@ -11,9 +11,9 @@
 
   <head>
     <title>Block Checks</title>
-    <script type="text/javascript" src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.3/jquery.min.js"></script>
-    <script type="text/javascript" src="js/anchors.js"></script>
-    <script type="text/javascript" src="js/google-analytics.js"></script>
+    <script type="text/javascript" src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.3/jquery.min.js"/>
+    <script type="text/javascript" src="js/anchors.js"/>
+    <script type="text/javascript" src="js/google-analytics.js"/>
     <link rel="icon" href="images/favicon.png" type="image/x-icon" />
     <link rel="shortcut icon" href="images/favicon.ico" type="image/ico" />
   </head>
diff --git a/src/xdocs/config_coding.xml b/src/xdocs/config_coding.xml
index 1995c3db9..f3020b8b8 100644
--- a/src/xdocs/config_coding.xml
+++ b/src/xdocs/config_coding.xml
@@ -11,9 +11,9 @@
 
   <head>
     <title>Coding</title>
-    <script type="text/javascript" src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.3/jquery.min.js"></script>
-    <script type="text/javascript" src="js/anchors.js"></script>
-    <script type="text/javascript" src="js/google-analytics.js"></script>
+    <script type="text/javascript" src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.3/jquery.min.js"/>
+    <script type="text/javascript" src="js/anchors.js"/>
+    <script type="text/javascript" src="js/google-analytics.js"/>
     <link rel="icon" href="images/favicon.png" type="image/x-icon" />
     <link rel="shortcut icon" href="images/favicon.ico" type="image/ico" />
   </head>
@@ -2009,7 +2009,7 @@ if (&quot;something&quot;.equals(x))
           <td>legalAbstractClassNames</td>
           <td>Abstract classes that may be used as types. </td>
           <td><a href="property_types.html#stringSet">String Set</a></td>
-          <td></td>
+          <td/>
         </tr>
         <tr>
             <td>ignoredMethodNames</td>
diff --git a/src/xdocs/config_design.xml b/src/xdocs/config_design.xml
index c1bba7333..1ee787649 100644
--- a/src/xdocs/config_design.xml
+++ b/src/xdocs/config_design.xml
@@ -11,9 +11,9 @@
 
   <head>
     <title>Class Design</title>
-    <script type="text/javascript" src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.3/jquery.min.js"></script>
-    <script type="text/javascript" src="js/anchors.js"></script>
-    <script type="text/javascript" src="js/google-analytics.js"></script>
+    <script type="text/javascript" src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.3/jquery.min.js"/>
+    <script type="text/javascript" src="js/anchors.js"/>
+    <script type="text/javascript" src="js/google-analytics.js"/>
     <link rel="icon" href="images/favicon.png" type="image/x-icon" />
     <link rel="shortcut icon" href="images/favicon.ico" type="image/ico" />
   </head>
diff --git a/src/xdocs/config_header.xml b/src/xdocs/config_header.xml
index 4fcf03563..6a2edec5e 100644
--- a/src/xdocs/config_header.xml
+++ b/src/xdocs/config_header.xml
@@ -11,9 +11,9 @@
 
   <head>
     <title>Headers</title>
-    <script type="text/javascript" src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.3/jquery.min.js"></script>
-    <script type="text/javascript" src="js/anchors.js"></script>
-    <script type="text/javascript" src="js/google-analytics.js"></script>
+    <script type="text/javascript" src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.3/jquery.min.js"/>
+    <script type="text/javascript" src="js/anchors.js"/>
+    <script type="text/javascript" src="js/google-analytics.js"/>
     <link rel="icon" href="images/favicon.png" type="image/x-icon" />
     <link rel="shortcut icon" href="images/favicon.ico" type="image/ico" />
   </head>
diff --git a/src/xdocs/config_imports.xml b/src/xdocs/config_imports.xml
index 8891c0043..29d012a04 100644
--- a/src/xdocs/config_imports.xml
+++ b/src/xdocs/config_imports.xml
@@ -11,9 +11,9 @@
 
   <head>
     <title>Imports</title>
-    <script type="text/javascript" src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.3/jquery.min.js"></script>
-    <script type="text/javascript" src="js/anchors.js"></script>
-    <script type="text/javascript" src="js/google-analytics.js"></script>
+    <script type="text/javascript" src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.3/jquery.min.js"/>
+    <script type="text/javascript" src="js/anchors.js"/>
+    <script type="text/javascript" src="js/google-analytics.js"/>
     <link rel="icon" href="images/favicon.png" type="image/x-icon" />
     <link rel="shortcut icon" href="images/favicon.ico" type="image/ico" />
   </head>
diff --git a/src/xdocs/config_javadoc.xml b/src/xdocs/config_javadoc.xml
index fa1300c51..0a5236854 100644
--- a/src/xdocs/config_javadoc.xml
+++ b/src/xdocs/config_javadoc.xml
@@ -11,9 +11,9 @@
 
   <head>
     <title>Javadoc Comments</title>
-    <script type="text/javascript" src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.3/jquery.min.js"></script>
-    <script type="text/javascript" src="js/anchors.js"></script>
-    <script type="text/javascript" src="js/google-analytics.js"></script>
+    <script type="text/javascript" src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.3/jquery.min.js"/>
+    <script type="text/javascript" src="js/anchors.js"/>
+    <script type="text/javascript" src="js/google-analytics.js"/>
     <link rel="icon" href="images/favicon.png" type="image/x-icon" />
     <link rel="shortcut icon" href="images/favicon.ico" type="image/ico" />
   </head>
diff --git a/src/xdocs/config_metrics.xml b/src/xdocs/config_metrics.xml
index 666cc32d3..2d06fc28a 100644
--- a/src/xdocs/config_metrics.xml
+++ b/src/xdocs/config_metrics.xml
@@ -11,9 +11,9 @@
 
   <head>
     <title>Metrics</title>
-    <script type="text/javascript" src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.3/jquery.min.js"></script>
-    <script type="text/javascript" src="js/anchors.js"></script>
-    <script type="text/javascript" src="js/google-analytics.js"></script>
+    <script type="text/javascript" src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.3/jquery.min.js"/>
+    <script type="text/javascript" src="js/anchors.js"/>
+    <script type="text/javascript" src="js/google-analytics.js"/>
     <link rel="icon" href="images/favicon.png" type="image/x-icon" />
     <link rel="shortcut icon" href="images/favicon.ico" type="image/ico" />
   </head>
diff --git a/src/xdocs/config_misc.xml b/src/xdocs/config_misc.xml
index 1eb316866..e0f54c201 100755
--- a/src/xdocs/config_misc.xml
+++ b/src/xdocs/config_misc.xml
@@ -11,9 +11,9 @@
 
   <head>
     <title>Miscellaneous</title>
-    <script type="text/javascript" src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.3/jquery.min.js"></script>
-    <script type="text/javascript" src="js/anchors.js"></script>
-    <script type="text/javascript" src="js/google-analytics.js"></script>
+    <script type="text/javascript" src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.3/jquery.min.js"/>
+    <script type="text/javascript" src="js/anchors.js"/>
+    <script type="text/javascript" src="js/google-analytics.js"/>
     <link rel="icon" href="images/favicon.png" type="image/x-icon" />
     <link rel="shortcut icon" href="images/favicon.ico" type="image/ico" />
   </head>
diff --git a/src/xdocs/config_modifier.xml b/src/xdocs/config_modifier.xml
index e0927cd62..a07a45712 100644
--- a/src/xdocs/config_modifier.xml
+++ b/src/xdocs/config_modifier.xml
@@ -11,9 +11,9 @@
 
   <head>
     <title>Modifiers</title>
-    <script type="text/javascript" src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.3/jquery.min.js"></script>
-    <script type="text/javascript" src="js/anchors.js"></script>
-    <script type="text/javascript" src="js/google-analytics.js"></script>
+    <script type="text/javascript" src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.3/jquery.min.js"/>
+    <script type="text/javascript" src="js/anchors.js"/>
+    <script type="text/javascript" src="js/google-analytics.js"/>
     <link rel="icon" href="images/favicon.png" type="image/x-icon" />
     <link rel="shortcut icon" href="images/favicon.ico" type="image/ico" />
   </head>
diff --git a/src/xdocs/config_naming.xml b/src/xdocs/config_naming.xml
index bbb3f6c58..3b55b27df 100644
--- a/src/xdocs/config_naming.xml
+++ b/src/xdocs/config_naming.xml
@@ -11,9 +11,9 @@
 
   <head>
     <title>Naming Conventions</title>
-    <script type="text/javascript" src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.3/jquery.min.js"></script>
-    <script type="text/javascript" src="js/anchors.js"></script>
-    <script type="text/javascript" src="js/google-analytics.js"></script>
+    <script type="text/javascript" src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.3/jquery.min.js"/>
+    <script type="text/javascript" src="js/anchors.js"/>
+    <script type="text/javascript" src="js/google-analytics.js"/>
     <link rel="icon" href="images/favicon.png" type="image/x-icon" />
     <link rel="shortcut icon" href="images/favicon.ico" type="image/ico" />
   </head>
diff --git a/src/xdocs/config_regexp.xml b/src/xdocs/config_regexp.xml
index be9a94911..e01e65229 100644
--- a/src/xdocs/config_regexp.xml
+++ b/src/xdocs/config_regexp.xml
@@ -11,9 +11,9 @@
 
   <head>
     <title>Regexp</title>
-    <script type="text/javascript" src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.3/jquery.min.js"></script>
-    <script type="text/javascript" src="js/anchors.js"></script>
-    <script type="text/javascript" src="js/google-analytics.js"></script>
+    <script type="text/javascript" src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.3/jquery.min.js"/>
+    <script type="text/javascript" src="js/anchors.js"/>
+    <script type="text/javascript" src="js/google-analytics.js"/>
     <link rel="icon" href="images/favicon.png" type="image/x-icon" />
     <link rel="shortcut icon" href="images/favicon.ico" type="image/ico" />
   </head>
diff --git a/src/xdocs/config_reporting.xml b/src/xdocs/config_reporting.xml
index bc49366d6..66f967193 100644
--- a/src/xdocs/config_reporting.xml
+++ b/src/xdocs/config_reporting.xml
@@ -11,9 +11,9 @@
 
   <head>
     <title>Reporting Configuration</title>
-    <script type="text/javascript" src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.3/jquery.min.js"></script>
-    <script type="text/javascript" src="js/anchors.js"></script>
-    <script type="text/javascript" src="js/google-analytics.js"></script>
+    <script type="text/javascript" src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.3/jquery.min.js"/>
+    <script type="text/javascript" src="js/anchors.js"/>
+    <script type="text/javascript" src="js/google-analytics.js"/>
     <link rel="icon" href="images/favicon.png" type="image/x-icon" />
     <link rel="shortcut icon" href="images/favicon.ico" type="image/ico" />
   </head>
diff --git a/src/xdocs/config_sizes.xml b/src/xdocs/config_sizes.xml
index a80b7f15f..80e54194e 100644
--- a/src/xdocs/config_sizes.xml
+++ b/src/xdocs/config_sizes.xml
@@ -11,9 +11,9 @@
 
   <head>
     <title>Size Violations</title>
-    <script type="text/javascript" src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.3/jquery.min.js"></script>
-    <script type="text/javascript" src="js/anchors.js"></script>
-    <script type="text/javascript" src="js/google-analytics.js"></script>
+    <script type="text/javascript" src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.3/jquery.min.js"/>
+    <script type="text/javascript" src="js/anchors.js"/>
+    <script type="text/javascript" src="js/google-analytics.js"/>
     <link rel="icon" href="images/favicon.png" type="image/x-icon" />
     <link rel="shortcut icon" href="images/favicon.ico" type="image/ico" />
   </head>
diff --git a/src/xdocs/config_whitespace.xml b/src/xdocs/config_whitespace.xml
index 5104fd268..d1045b3c6 100644
--- a/src/xdocs/config_whitespace.xml
+++ b/src/xdocs/config_whitespace.xml
@@ -11,9 +11,9 @@
 
   <head>
     <title>Whitespace</title>
-    <script type="text/javascript" src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.3/jquery.min.js"></script>
-    <script type="text/javascript" src="js/anchors.js"></script>
-    <script type="text/javascript" src="js/google-analytics.js"></script>
+    <script type="text/javascript" src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.3/jquery.min.js"/>
+    <script type="text/javascript" src="js/anchors.js"/>
+    <script type="text/javascript" src="js/google-analytics.js"/>
     <link rel="icon" href="images/favicon.png" type="image/x-icon" />
     <link rel="shortcut icon" href="images/favicon.ico" type="image/ico" />
   </head>
diff --git a/src/xdocs/consulting.xml b/src/xdocs/consulting.xml
index 3d275ec9e..51ed7019e 100644
--- a/src/xdocs/consulting.xml
+++ b/src/xdocs/consulting.xml
@@ -11,9 +11,9 @@
 
   <head>
     <title>Consulting</title>
-    <script type="text/javascript" src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.3/jquery.min.js"></script>
-    <script type="text/javascript" src="js/anchors.js"></script>
-    <script type="text/javascript" src="js/google-analytics.js"></script>
+    <script type="text/javascript" src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.3/jquery.min.js"/>
+    <script type="text/javascript" src="js/anchors.js"/>
+    <script type="text/javascript" src="js/google-analytics.js"/>
     <link rel="icon" href="images/favicon.png" type="image/x-icon" />
     <link rel="shortcut icon" href="images/favicon.ico" type="image/ico" />
   </head>
diff --git a/src/xdocs/contributing.xml b/src/xdocs/contributing.xml
index 5c09111d1..34cac82e2 100644
--- a/src/xdocs/contributing.xml
+++ b/src/xdocs/contributing.xml
@@ -11,9 +11,9 @@
 
   <head>
     <title>Contributing</title>
-    <script type="text/javascript" src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.3/jquery.min.js"></script>
-    <script type="text/javascript" src="js/anchors.js"></script>
-    <script type="text/javascript" src="js/google-analytics.js"></script>
+    <script type="text/javascript" src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.3/jquery.min.js"/>
+    <script type="text/javascript" src="js/anchors.js"/>
+    <script type="text/javascript" src="js/google-analytics.js"/>
     <link rel="icon" href="images/favicon.png" type="image/x-icon" />
     <link rel="shortcut icon" href="images/favicon.ico" type="image/ico" />
   </head>
diff --git a/src/xdocs/eclipse.xml b/src/xdocs/eclipse.xml
index bebab3eb3..8edfedfc8 100644
--- a/src/xdocs/eclipse.xml
+++ b/src/xdocs/eclipse.xml
@@ -11,9 +11,9 @@
 
   <head>
     <title>Importing and debugging in Eclipse IDE</title>
-    <script type="text/javascript" src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.3/jquery.min.js"></script>
-    <script type="text/javascript" src="js/anchors.js"></script>
-    <script type="text/javascript" src="js/google-analytics.js"></script>
+    <script type="text/javascript" src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.3/jquery.min.js"/>
+    <script type="text/javascript" src="js/anchors.js"/>
+    <script type="text/javascript" src="js/google-analytics.js"/>
     <link rel="icon" href="images/favicon.png" type="image/x-icon" />
     <link rel="shortcut icon" href="images/favicon.ico" type="image/ico" />
   </head>
diff --git a/src/xdocs/extending.xml b/src/xdocs/extending.xml
index bc0f3bb32..bd27daabb 100644
--- a/src/xdocs/extending.xml
+++ b/src/xdocs/extending.xml
@@ -11,9 +11,9 @@
 
   <head>
     <title>Extending Checkstyle</title>
-    <script type="text/javascript" src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.3/jquery.min.js"></script>
-    <script type="text/javascript" src="js/anchors.js"></script>
-    <script type="text/javascript" src="js/google-analytics.js"></script>
+    <script type="text/javascript" src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.3/jquery.min.js"/>
+    <script type="text/javascript" src="js/anchors.js"/>
+    <script type="text/javascript" src="js/google-analytics.js"/>
     <link rel="icon" href="images/favicon.png" type="image/x-icon" />
     <link rel="shortcut icon" href="images/favicon.ico" type="image/ico" />
   </head>
diff --git a/src/xdocs/google_style.xml b/src/xdocs/google_style.xml
index 14dcf91b2..5a5dc91f1 100644
--- a/src/xdocs/google_style.xml
+++ b/src/xdocs/google_style.xml
@@ -10,9 +10,9 @@
 
     <head>
         <title>Google's Style</title>
-        <script type="text/javascript" src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.3/jquery.min.js"></script>
-        <script type="text/javascript" src="js/anchors.js"></script>
-        <script type="text/javascript" src="js/google-analytics.js"></script>
+        <script type="text/javascript" src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.3/jquery.min.js"/>
+        <script type="text/javascript" src="js/anchors.js"/>
+        <script type="text/javascript" src="js/google-analytics.js"/>
         <link rel="icon" href="images/favicon.png" type="image/x-icon" />
         <link rel="shortcut icon" href="images/favicon.ico" type="image/ico" />
     </head>
@@ -78,7 +78,7 @@
                                 </a>
                             </td>
                             <td>--</td>
-                            <td></td>
+                            <td/>
                         </tr>
                         <tr>
                             <td>
@@ -86,7 +86,7 @@
                                     href="http://checkstyle.sourceforge.net/reports/google-java-style.html#s1.1-terminology">1.1 Terminology notes</a>
                             </td>
                             <td>--</td>
-                            <td></td>
+                            <td/>
                         </tr>
                         <tr>
                             <td>
@@ -105,7 +105,7 @@
                                 </a>
                             </td>
                             <td>↓</td>
-                            <td></td>
+                            <td/>
                         </tr>
                         <tr>
                             <td>
@@ -140,7 +140,7 @@
                                 alt="" />
                                 <a href="https://github.com/checkstyle/checkstyle/issues/265"> explanation</a>
                             </td>
-                            <td></td>
+                            <td/>
                         </tr>
                         <tr>
                             <td>
@@ -227,7 +227,7 @@
                                     href="http://checkstyle.sourceforge.net/reports/google-java-style.html#s3.1-copyright-statement">3.1 License or copyright information, if present</a>
                             </td>
                             <td>--</td>
-                            <td></td>
+                            <td/>
                         </tr>
                         <tr>
                             <td>
@@ -269,7 +269,7 @@
                                 </a>
                             </td>
                             <td>↓</td>
-                            <td></td>
+                            <td/>
                         </tr>
                         <tr>
                             <td>
@@ -351,7 +351,7 @@
                                 </a>
                             </td>
                             <td>↓</td>
-                            <td></td>
+                            <td/>
                         </tr>
                         <tr>
                             <td>
@@ -378,7 +378,7 @@
                                     href="http://checkstyle.sourceforge.net/reports/google-java-style.html#s3.4.2-class-member-ordering">3.4.2 Class member ordering</a>
                             </td>
                             <td>--</td>
-                            <td></td>
+                            <td/>
                         </tr>
                         <tr>
                             <td>
@@ -407,7 +407,7 @@
                                 </a>
                             </td>
                             <td>--</td>
-                            <td></td>
+                            <td/>
                         </tr>
                         <tr>
                             <td>
@@ -417,7 +417,7 @@
                                 </a>
                             </td>
                             <td>↓</td>
-                            <td></td>
+                            <td/>
                         </tr>
                         <tr>
                             <td>
@@ -576,7 +576,7 @@
                                 </a>
                             </td>
                             <td>--</td>
-                            <td></td>
+                            <td/>
                         </tr>
                         <tr>
                             <td>
@@ -636,7 +636,7 @@
                                 </a>
                             </td>
                             <td>↓</td>
-                            <td></td>
+                            <td/>
                         </tr>
                         <tr>
                             <td>
@@ -695,7 +695,7 @@
                                     href="http://checkstyle.sourceforge.net/reports/google-java-style.html#s4.6.3-horizontal-alignment">4.6.3 Horizontal alignment: never required</a>
                             </td>
                             <td>--</td>
-                            <td></td>
+                            <td/>
                         </tr>
                         <tr>
                             <td>
@@ -703,7 +703,7 @@
                                     href="http://checkstyle.sourceforge.net/reports/google-java-style.html#s4.7-grouping-parentheses">4.7 Grouping parentheses: recommended</a>
                             </td>
                             <td>--</td>
-                            <td></td>
+                            <td/>
                         </tr>
                         <tr>
                             <td>
@@ -713,7 +713,7 @@
                                 </a>
                             </td>
                             <td>↓</td>
-                            <td></td>
+                            <td/>
                         </tr>
                         <tr>
                             <td>
@@ -721,7 +721,7 @@
                                     href="http://checkstyle.sourceforge.net/reports/google-java-style.html#s4.8.1-enum-classes">4.8.1 Enum classes</a>
                             </td>
                             <td>--</td>
-                            <td></td>
+                            <td/>
                         </tr>
                         <tr>
                             <td>
@@ -729,7 +729,7 @@
                                     href="http://checkstyle.sourceforge.net/reports/google-java-style.html#s4.8.2-variable-declarations">4.8.2 Variable declarations</a>
                             </td>
                             <td>↓</td>
-                            <td></td>
+                            <td/>
                         </tr>
                         <tr>
                             <td>
@@ -779,7 +779,7 @@
                                     href="http://checkstyle.sourceforge.net/reports/google-java-style.html#s4.8.3-arrays">4.8.3 Arrays</a>
                             </td>
                             <td>↓</td>
-                            <td></td>
+                            <td/>
                         </tr>
                         <tr>
                             <td>
@@ -787,7 +787,7 @@
                                     href="http://checkstyle.sourceforge.net/reports/google-java-style.html#s4.8.3.1-array-initializers">4.8.3.1 Array initializers: can be "block-like"</a>
                             </td>
                             <td>--</td>
-                            <td></td>
+                            <td/>
                         </tr>
                         <tr>
                             <td>
@@ -815,7 +815,7 @@
                                     href="http://checkstyle.sourceforge.net/reports/google-java-style.html#s4.8.4-switch">4.8.4 Switch statements</a>
                             </td>
                             <td>--</td>
-                            <td></td>
+                            <td/>
                         </tr>
                         <tr>
                             <td>
@@ -901,7 +901,7 @@
                                     href="http://checkstyle.sourceforge.net/reports/google-java-style.html#s4.8.6-comments">4.8.6 Comments</a>
                             </td>
                             <td>↓</td>
-                            <td></td>
+                            <td/>
                         </tr>
                         <tr>
                             <td>
@@ -914,7 +914,7 @@
                                     alt="" />
                                 future plan: <a href="https://github.com/checkstyle/checkstyle/issues/333">CommentIndentation</a> as after 6.0 release it is become possible.
                             </td>
-                            <td></td>
+                            <td/>
                         </tr>
                         <tr>
                             <td>
@@ -963,7 +963,7 @@
                                 </a>
                             </td>
                             <td>↓</td>
-                            <td></td>
+                            <td/>
                         </tr>
                         <tr>
                             <td>
@@ -972,7 +972,7 @@
                             </td>
                             <td>"5.2 Rules of identifier type" already includes this rule.
                             </td>
-                            <td></td>
+                            <td/>
                         </tr>
                         <tr>
                             <td>
@@ -982,7 +982,7 @@
                                 </a>
                             </td>
                             <td>↓</td>
-                            <td></td>
+                            <td/>
                         </tr>
                         <tr>
                             <td>
@@ -1053,7 +1053,7 @@
                                     alt="" />
                                 Every constant is a static final field, but not all static final fields are constants - impossible to check such rule.
                             </td>
-                            <td></td>
+                            <td/>
                         </tr>
                         <tr>
                             <td>
@@ -1169,7 +1169,7 @@
                                 </a>
                             </td>
                             <td>↓</td>
-                            <td></td>
+                            <td/>
                         </tr>
                         <tr>
                             <td>
@@ -1186,7 +1186,7 @@
                                 open or
                                 look at another Class file.
                             </td>
-                            <td></td>
+                            <td/>
                         </tr>
                         <tr>
                             <td>
@@ -1218,7 +1218,7 @@
                                     alt="" />
                                     Proper validation require parsing other files, sources are not always available.
                             </td>
-                            <td></td>
+                            <td/>
                         </tr>
                         <tr>
                             <td>
@@ -1248,7 +1248,7 @@
                                 </a>
                             </td>
                             <td>↓</td>
-                            <td></td>
+                            <td/>
                         </tr>
                         <tr>
                             <td>
@@ -1258,7 +1258,7 @@
                                 </a>
                             </td>
                             <td>↓</td>
-                            <td></td>
+                            <td/>
                         </tr>
                         <tr>
                             <td>
diff --git a/src/xdocs/idea.xml b/src/xdocs/idea.xml
index 22b04b436..f146ae63c 100644
--- a/src/xdocs/idea.xml
+++ b/src/xdocs/idea.xml
@@ -11,9 +11,9 @@
 
   <head>
     <title>Importing and debugging in IntellIJ IDE</title>
-    <script type="text/javascript" src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.3/jquery.min.js"></script>
-    <script type="text/javascript" src="js/anchors.js"></script>
-    <script type="text/javascript" src="js/google-analytics.js"></script>
+    <script type="text/javascript" src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.3/jquery.min.js"/>
+    <script type="text/javascript" src="js/anchors.js"/>
+    <script type="text/javascript" src="js/google-analytics.js"/>
     <link rel="icon" href="images/favicon.png" type="image/x-icon" />
     <link rel="shortcut icon" href="images/favicon.ico" type="image/ico" />
   </head>
diff --git a/src/xdocs/netbeans.xml b/src/xdocs/netbeans.xml
index 96e6fb10e..8d5df36e6 100644
--- a/src/xdocs/netbeans.xml
+++ b/src/xdocs/netbeans.xml
@@ -11,9 +11,9 @@
 
   <head>
     <title>Importing and debugging in Netbeans IDE</title>
-    <script type="text/javascript" src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.3/jquery.min.js"></script>
-    <script type="text/javascript" src="js/anchors.js"></script>
-    <script type="text/javascript" src="js/google-analytics.js"></script>
+    <script type="text/javascript" src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.3/jquery.min.js"/>
+    <script type="text/javascript" src="js/anchors.js"/>
+    <script type="text/javascript" src="js/google-analytics.js"/>
     <link rel="icon" href="images/favicon.png" type="image/x-icon" />
     <link rel="shortcut icon" href="images/favicon.ico" type="image/ico" />
   </head>
diff --git a/src/xdocs/property_types.xml b/src/xdocs/property_types.xml
index c260e91f2..3b302142f 100644
--- a/src/xdocs/property_types.xml
+++ b/src/xdocs/property_types.xml
@@ -11,9 +11,9 @@
 
   <head>
     <title>Property Types</title>
-    <script type="text/javascript" src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.3/jquery.min.js"></script>
-    <script type="text/javascript" src="js/anchors.js"></script>
-    <script type="text/javascript" src="js/google-analytics.js"></script>
+    <script type="text/javascript" src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.3/jquery.min.js"/>
+    <script type="text/javascript" src="js/anchors.js"/>
+    <script type="text/javascript" src="js/google-analytics.js"/>
     <link rel="icon" href="images/favicon.png" type="image/x-icon" />
     <link rel="shortcut icon" href="images/favicon.ico" type="image/ico" />
   </head>
diff --git a/src/xdocs/releasenotes.xml b/src/xdocs/releasenotes.xml
index fb6075ef6..768a6b7e5 100644
--- a/src/xdocs/releasenotes.xml
+++ b/src/xdocs/releasenotes.xml
@@ -11,9 +11,9 @@
 
   <head>
     <title>Release Notes</title>
-    <script type="text/javascript" src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.3/jquery.min.js"></script>
-    <script type="text/javascript" src="js/anchors.js"></script>
-    <script type="text/javascript" src="js/google-analytics.js"></script>
+    <script type="text/javascript" src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.3/jquery.min.js"/>
+    <script type="text/javascript" src="js/anchors.js"/>
+    <script type="text/javascript" src="js/google-analytics.js"/>
     <link rel="icon" href="images/favicon.png" type="image/x-icon" />
     <link rel="shortcut icon" href="images/favicon.ico" type="image/ico" />
   </head>
diff --git a/src/xdocs/running.xml b/src/xdocs/running.xml
index cf4ca2535..e89586b76 100644
--- a/src/xdocs/running.xml
+++ b/src/xdocs/running.xml
@@ -11,9 +11,9 @@
 
   <head>
     <title>Running</title>
-    <script type="text/javascript" src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.3/jquery.min.js"></script>
-    <script type="text/javascript" src="js/anchors.js"></script>
-    <script type="text/javascript" src="js/google-analytics.js"></script>
+    <script type="text/javascript" src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.3/jquery.min.js"/>
+    <script type="text/javascript" src="js/anchors.js"/>
+    <script type="text/javascript" src="js/google-analytics.js"/>
     <link rel="icon" href="images/favicon.png" type="image/x-icon" />
     <link rel="shortcut icon" href="images/favicon.ico" type="image/ico" />
   </head>
diff --git a/src/xdocs/style_configs.xml b/src/xdocs/style_configs.xml
index e97e07748..db5a56c60 100644
--- a/src/xdocs/style_configs.xml
+++ b/src/xdocs/style_configs.xml
@@ -11,9 +11,9 @@
 
   <head>
     <title>Style Configurations</title>
-    <script type="text/javascript" src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.3/jquery.min.js"></script>
-    <script type="text/javascript" src="js/anchors.js"></script>
-    <script type="text/javascript" src="js/google-analytics.js"></script>
+    <script type="text/javascript" src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.3/jquery.min.js"/>
+    <script type="text/javascript" src="js/anchors.js"/>
+    <script type="text/javascript" src="js/google-analytics.js"/>
     <link rel="icon" href="images/favicon.png" type="image/x-icon" />
     <link rel="shortcut icon" href="images/favicon.ico" type="image/ico" />
   </head>
diff --git a/src/xdocs/sun_style.xml b/src/xdocs/sun_style.xml
index ce1c4f2f2..3a8be6713 100644
--- a/src/xdocs/sun_style.xml
+++ b/src/xdocs/sun_style.xml
@@ -10,9 +10,9 @@
 
    <head>
       <title>Sun's Java Style</title>
-      <script type="text/javascript" src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.3/jquery.min.js"></script>
-      <script type="text/javascript" src="js/anchors.js"></script>
-      <script type="text/javascript" src="js/google-analytics.js"></script>
+      <script type="text/javascript" src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.3/jquery.min.js"/>
+      <script type="text/javascript" src="js/anchors.js"/>
+      <script type="text/javascript" src="js/google-analytics.js"/>
       <link rel="icon" href="images/favicon.png" type="image/x-icon" />
       <link rel="shortcut icon" href="images/favicon.ico" type="image/ico" />
    </head>
diff --git a/src/xdocs/writingfilters.xml b/src/xdocs/writingfilters.xml
index 275df891a..8ace3c18b 100644
--- a/src/xdocs/writingfilters.xml
+++ b/src/xdocs/writingfilters.xml
@@ -11,9 +11,9 @@
 
   <head>
     <title>Writing Filters</title>
-    <script type="text/javascript" src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.3/jquery.min.js"></script>
-    <script type="text/javascript" src="js/anchors.js"></script>
-    <script type="text/javascript" src="js/google-analytics.js"></script>
+    <script type="text/javascript" src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.3/jquery.min.js"/>
+    <script type="text/javascript" src="js/anchors.js"/>
+    <script type="text/javascript" src="js/google-analytics.js"/>
     <link rel="icon" href="images/favicon.png" type="image/x-icon" />
     <link rel="shortcut icon" href="images/favicon.ico" type="image/ico" />
   </head>
