Consistent use of <pre class="code">

Issue: SPR-8108

spring-orm/src/main/java/org/springframework/orm/hibernate3/FilterDefinitionFactoryBean.java

@@ -35,7 +35,7 @@ import org.springframework.beans.factory.InitializingBean;
  * definition, as the list element for the "filterDefinitions" bean property.
  * For example:
  *
- * <pre>
+ * <pre class="code">
  * &lt;bean id="sessionFactory" class="org.springframework.orm.hibernate3.LocalSessionFactoryBean"&gt;
  *   ...
  *   &lt;property name="filterDefinitions"&gt;

spring-orm/src/main/java/org/springframework/orm/hibernate3/HibernateInterceptor.java

@@ -36,7 +36,7 @@ import org.springframework.transaction.support.TransactionSynchronizationManager
  * Hibernate's own {@code SessionFactory.getCurrentSession()} method, to be
  * able to detect a thread-bound Session. Typically, the code will look like as follows:
  *
- * <pre>
+ * <pre class="code">
  * public void doSomeDataAccessAction() {
  *   Session session = this.sessionFactory.getCurrentSession();
  *   ...

spring-orm/src/main/java/org/springframework/orm/hibernate3/LocalSessionFactoryBean.java

@@ -445,7 +445,7 @@ public class LocalSessionFactoryBean extends AbstractSessionFactoryBean implemen
 	 * This configuration setting corresponds to the <class-cache> entry
 	 * in the "hibernate.cfg.xml" configuration format.
 	 * <p>For example:
-	 * <pre>
+	 * <pre class="code">
 	 * &lt;property name="entityCacheStrategies"&gt;
 	 *   &lt;props&gt;
 	 *     &lt;prop key="com.mycompany.Customer"&gt;read-write&lt;/prop&gt;
@@ -465,7 +465,7 @@ public class LocalSessionFactoryBean extends AbstractSessionFactoryBean implemen
 	 * This configuration setting corresponds to the &lt;collection-cache&gt; entry
 	 * in the "hibernate.cfg.xml" configuration format.
 	 * <p>For example:
-	 * <pre>
+	 * <pre class="code">
 	 * &lt;property name="collectionCacheStrategies"&gt;
 	 *   &lt;props&gt;
 	 *     &lt;prop key="com.mycompany.Order.items">read-write&lt;/prop&gt;

spring-orm/src/main/java/org/springframework/orm/hibernate3/TypeDefinitionBean.java

@@ -28,7 +28,7 @@ import org.springframework.beans.factory.InitializingBean;
  * definition, as list element for the "typeDefinitions" bean property.
  * For example:
  *
- * <pre>
+ * <pre class="code">
  * &lt;bean id="sessionFactory" class="org.springframework.orm.hibernate3.LocalSessionFactoryBean"&gt;
  *   ...
  *   &lt;property name="typeDefinitions"&gt;

spring-orm/src/main/java/org/springframework/orm/hibernate3/support/ScopedBeanInterceptor.java

@@ -30,7 +30,7 @@ import org.springframework.aop.support.AopUtils;
  *
  * <p>Usage example:
  *
- * <pre>
+ * <pre class="code">
  * &lt;bean id=&quot;sessionFactory&quot; class=&quot;org.springframework.orm.hibernate3.LocalSessionFactoryBean&quot;&gt;
  *   ...
  *   &lt;property name=&quot;entityInterceptor&quot;&gt;

spring-orm/src/main/java/org/springframework/orm/jdo/LocalPersistenceManagerFactoryBean.java

@@ -81,7 +81,7 @@ import org.springframework.util.CollectionUtils;
  *
  * <p>For example, in case of <a href="http://www.jpox.org">JPOX</a>:
  *
- * <p><pre>
+ * <p><pre class="code">
  * &lt;bean id="persistenceManagerFactory" class="org.jpox.PersistenceManagerFactoryImpl" destroy-method="close"&gt;
  *   &lt;property name="connectionFactory" ref="dataSource"/&gt;
  *   &lt;property name="nontransactionalRead" value="true"/&gt;