Consistent use of <pre class="code">

Issue: SPR-8108

spring-webmvc/src/main/java/org/springframework/web/servlet/mvc/ServletForwardingController.java

@@ -38,7 +38,7 @@ import org.springframework.web.util.WebUtils;
  * <p><b>Example:</b> web.xml, mapping all "/myservlet" requests to a Spring dispatcher.
  * Also defines a custom "myServlet", but <i>without</i> servlet mapping.
  *
- * <pre>
+ * <pre class="code">
  * &lt;servlet&gt;
  *   &lt;servlet-name&gt;myServlet&lt;/servlet-name&gt;
  *   &lt;servlet-class&gt;mypackage.TestServlet&lt;/servlet-class&gt;
@@ -59,7 +59,7 @@ import org.springframework.web.util.WebUtils;
  * configured HandlerInterceptor chain (e.g. an OpenSessionInViewInterceptor).
  * From the servlet point of view, everything will work as usual.
  *
- * <pre>
+ * <pre class="code">
  * &lt;bean id="urlMapping" class="org.springframework.web.servlet.handler.SimpleUrlHandlerMapping"&gt;
  *   &lt;property name="interceptors"&gt;
  *     &lt;list&gt;

spring-webmvc/src/main/java/org/springframework/web/servlet/mvc/ServletWrappingController.java

@@ -48,7 +48,7 @@ import org.springframework.web.servlet.ModelAndView;
  * through the configured HandlerInterceptor chain (e.g. an OpenSessionInViewInterceptor).
  * From the Struts point of view, everything will work as usual.
  *
- * <pre>
+ * <pre class="code">
  * &lt;bean id="urlMapping" class="org.springframework.web.servlet.handler.SimpleUrlHandlerMapping"&gt;
  *   &lt;property name="interceptors"&gt;
  *     &lt;list&gt;

spring-webmvc/src/main/java/org/springframework/web/servlet/mvc/support/RedirectAttributes.java

@@ -36,7 +36,7 @@ import org.springframework.web.servlet.FlashMap;
  * automatically propagated to the "output" FlashMap of the current request.
  *
  * <p>Example usage in an {@code @Controller}:
- * <pre>
+ * <pre class="code">
  * &#064;RequestMapping(value = "/accounts", method = RequestMethod.POST)
  * public String handle(Account account, BindingResult result, RedirectAttributes redirectAttrs) {
  *   if (result.hasErrors()) {

spring-webmvc/src/main/java/org/springframework/web/servlet/tags/UrlTag.java

@@ -63,7 +63,7 @@ import org.springframework.web.util.UriUtils;
  * is 'false'.  When setting the URL value into a variable, escaping is not recommended.
  *
  * <p>Example usage:
- * <pre>&lt;spring:url value="/url/path/{variableName}"&gt;
+ * <pre class="code">&lt;spring:url value="/url/path/{variableName}"&gt;
  *   &lt;spring:param name="variableName" value="more than JSTL c:url" /&gt;
  * &lt;/spring:url&gt;</pre>
  * Results in:

spring-webmvc/src/main/java/org/springframework/web/servlet/view/freemarker/FreeMarkerConfigurer.java

@@ -37,7 +37,7 @@ import org.springframework.web.context.ServletContextAware;
  * The simplest way to use this class is to specify just a "templateLoaderPath";
  * you do not need any further configuration then.
  *
- * <pre>
+ * <pre class="code">
  * &lt;bean id="freemarkerConfig" class="org.springframework.web.servlet.view.freemarker.FreeMarkerConfigurer"&gt;
  *   &lt;property name="templateLoaderPath"&gt;&lt;value&gt;/WEB-INF/freemarker/&lt;/value>&lt;/property&gt;
  * &lt;/bean&gt;</pre>
@@ -58,7 +58,7 @@ import org.springframework.web.context.ServletContextAware;
  * reference the "spring.ftl" macro library (contained in this package and thus
  * in spring.jar) like this:
  *
- * <pre>
+ * <pre class="code">
  * &lt;#import "/spring.ftl" as spring/&gt;
  * &lt;@spring.bind "person.age"/&gt;
  * age is ${spring.status.value}</pre>

spring-webmvc/src/main/java/org/springframework/web/servlet/view/jasperreports/JasperReportsMultiFormatView.java

@@ -37,7 +37,7 @@ import org.springframework.util.CollectionUtils;
  * view class. For example you might add the following code to your
  * {@code Controller}:
  *
- * <pre>
+ * <pre class="code">
  * Map<String, Object> model = new HashMap<String, Object>();
  * model.put("format", "pdf");</pre>
  *

spring-webmvc/src/main/java/org/springframework/web/servlet/view/json/MappingJackson2JsonView.java

@@ -137,7 +137,7 @@ public class MappingJackson2JsonView extends AbstractView {
 	/**
 	 * Whether to use the default pretty printer when writing JSON.
 	 * This is a shortcut for setting up an {@code ObjectMapper} as follows:
-	 * <pre>
+	 * <pre class="code">
 	 * ObjectMapper mapper = new ObjectMapper();
 	 * mapper.configure(SerializationFeature.INDENT_OUTPUT, true);
 	 * </pre>

spring-webmvc/src/main/java/org/springframework/web/servlet/view/json/MappingJacksonJsonView.java

@@ -137,7 +137,7 @@ public class MappingJacksonJsonView extends AbstractView {
 	/**
 	 * Whether to use the default pretty printer when writing JSON.
 	 * This is a shortcut for setting up an {@code ObjectMapper} as follows:
-	 * <pre>
+	 * <pre class="code">
 	 * ObjectMapper mapper = new ObjectMapper();
 	 * mapper.configure(SerializationConfig.Feature.INDENT_OUTPUT, true);
 	 * </pre>

spring-webmvc/src/main/java/org/springframework/web/servlet/view/tiles2/TilesConfigurer.java

@@ -91,7 +91,7 @@ import org.springframework.web.context.ServletContextAware;
  *
  * <p>A typical TilesConfigurer bean definition looks as follows:
  *
- * <pre>
+ * <pre class="code">
  * &lt;bean id="tilesConfigurer" class="org.springframework.web.servlet.view.tiles2.TilesConfigurer">
  *   &lt;property name="definitions">
  *     &lt;list>