diff --git a/spring-aop/src/main/java/org/springframework/aop/framework/autoproxy/BeanNameAutoProxyCreator.java b/spring-aop/src/main/java/org/springframework/aop/framework/autoproxy/BeanNameAutoProxyCreator.java
index 8c49d4ff7d2..297ab0cd1f6 100644
--- a/spring-aop/src/main/java/org/springframework/aop/framework/autoproxy/BeanNameAutoProxyCreator.java
+++ b/spring-aop/src/main/java/org/springframework/aop/framework/autoproxy/BeanNameAutoProxyCreator.java
@@ -61,7 +61,7 @@ public class BeanNameAutoProxyCreator extends AbstractAutoProxyCreator {
 	 * FactoryBean will get proxied. This default behavior applies as of Spring 2.0.
 	 * If you intend to proxy a FactoryBean instance itself (a rare use case, but
 	 * Spring 1.2's default behavior), specify the bean name of the FactoryBean
-	 * including the factory-bean prefix "&": e.g. "&myFactoryBean".
+	 * including the factory-bean prefix "&": e.g. "&myFactoryBean".
 	 * @see org.springframework.beans.factory.FactoryBean
 	 * @see org.springframework.beans.factory.BeanFactory#FACTORY_BEAN_PREFIX
 	 */
diff --git a/spring-beans/src/main/java/org/springframework/beans/factory/groovy/GroovyBeanDefinitionReader.java b/spring-beans/src/main/java/org/springframework/beans/factory/groovy/GroovyBeanDefinitionReader.java
index da1ebc58c5f..9ef7aa3799f 100644
--- a/spring-beans/src/main/java/org/springframework/beans/factory/groovy/GroovyBeanDefinitionReader.java
+++ b/spring-beans/src/main/java/org/springframework/beans/factory/groovy/GroovyBeanDefinitionReader.java
@@ -75,18 +75,18 @@ import org.springframework.util.StringUtils;
  *
  * def reader = new GroovyBeanDefinitionReader(myApplicationContext)
  * reader.beans {
- *     dataSource(BasicDataSource) {                  // <--- invokeMethod
+ *     dataSource(BasicDataSource) {                  // &lt;--- invokeMethod
  *         driverClassName = "org.hsqldb.jdbcDriver"
  *         url = "jdbc:hsqldb:mem:grailsDB"
- *         username = "sa"                            // <-- setProperty
+ *         username = "sa"                            // &lt;-- setProperty
  *         password = ""
  *         settings = [mynew:"setting"]
  *     }
  *     sessionFactory(SessionFactory) {
- *         dataSource = dataSource                    // <-- getProperty for retrieving references
+ *         dataSource = dataSource                    // &lt;-- getProperty for retrieving references
  *     }
  *     myService(MyService) {
- *         nestedBean = { AnotherBean bean ->         // <-- setProperty with closure for nested bean
+ *         nestedBean = { AnotherBean bean -&gt;         // &lt;-- setProperty with closure for nested bean
  *             dataSource = dataSource
  *         }
  *     }
@@ -113,7 +113,7 @@ import org.springframework.util.StringUtils;
  *         dataSource = dataSource
  *     }
  *     myService(MyService) {
- *         nestedBean = { AnotherBean bean ->
+ *         nestedBean = { AnotherBean bean -&gt;
  *             dataSource = dataSource
  *         }
  *     }
diff --git a/spring-context/src/main/java/org/springframework/context/annotation/Configuration.java b/spring-context/src/main/java/org/springframework/context/annotation/Configuration.java
index 725999d89c8..39856654f90 100644
--- a/spring-context/src/main/java/org/springframework/context/annotation/Configuration.java
+++ b/spring-context/src/main/java/org/springframework/context/annotation/Configuration.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2002-2020 the original author or authors.
+ * Copyright 2002-2021 the original author or authors.
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
@@ -129,7 +129,7 @@ import org.springframework.stereotype.Component;
  * &#064;Configuration
  * public class AppConfig {
  *
- *     &#064Autowired Environment env;
+ *     &#064;Autowired Environment env;
  *
  *     &#064;Bean
  *     public MyBean myBean() {
@@ -149,7 +149,7 @@ import org.springframework.stereotype.Component;
  * &#064;PropertySource("classpath:/com/acme/app.properties")
  * public class AppConfig {
  *
- *     &#064Inject Environment env;
+ *     &#064;Inject Environment env;
  *
  *     &#064;Bean
  *     public MyBean myBean() {
@@ -170,7 +170,7 @@ import org.springframework.stereotype.Component;
  * &#064;PropertySource("classpath:/com/acme/app.properties")
  * public class AppConfig {
  *
- *     &#064Value("${bean.name}") String beanName;
+ *     &#064;Value("${bean.name}") String beanName;
  *
  *     &#064;Bean
  *     public MyBean myBean() {
@@ -297,7 +297,7 @@ import org.springframework.stereotype.Component;
  * &#064;ImportResource("classpath:/com/acme/database-config.xml")
  * public class AppConfig {
  *
- *     &#064Inject DataSource dataSource; // from XML
+ *     &#064;Inject DataSource dataSource; // from XML
  *
  *     &#064;Bean
  *     public MyBean myBean() {
diff --git a/spring-context/src/main/java/org/springframework/context/annotation/EnableAspectJAutoProxy.java b/spring-context/src/main/java/org/springframework/context/annotation/EnableAspectJAutoProxy.java
index 8e264634066..62cb6404c49 100644
--- a/spring-context/src/main/java/org/springframework/context/annotation/EnableAspectJAutoProxy.java
+++ b/spring-context/src/main/java/org/springframework/context/annotation/EnableAspectJAutoProxy.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2002-2018 the original author or authors.
+ * Copyright 2002-2021 the original author or authors.
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
@@ -98,7 +98,7 @@ import java.lang.annotation.Target;
  * &#064;EnableAspectJAutoProxy
  * public class AppConfig {
  *
- *     // no explicit &#064Bean definitions required
+ *     // no explicit &#064;Bean definitions required
  * }</pre>
  *
  * <b>Note: {@code @EnableAspectJAutoProxy} applies to its local application context only,
diff --git a/spring-context/src/main/java/org/springframework/context/support/GenericGroovyApplicationContext.java b/spring-context/src/main/java/org/springframework/context/support/GenericGroovyApplicationContext.java
index 8e1f74ba45d..4f4c0701734 100644
--- a/spring-context/src/main/java/org/springframework/context/support/GenericGroovyApplicationContext.java
+++ b/spring-context/src/main/java/org/springframework/context/support/GenericGroovyApplicationContext.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2002-2018 the original author or authors.
+ * Copyright 2002-2021 the original author or authors.
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
@@ -46,18 +46,18 @@ import org.springframework.lang.Nullable;
  *
  * def context = new GenericGroovyApplicationContext()
  * context.reader.beans {
- *     dataSource(BasicDataSource) {                  // <--- invokeMethod
+ *     dataSource(BasicDataSource) {                  // &lt;--- invokeMethod
  *         driverClassName = "org.hsqldb.jdbcDriver"
  *         url = "jdbc:hsqldb:mem:grailsDB"
- *         username = "sa"                            // <-- setProperty
+ *         username = "sa"                            // &lt;-- setProperty
  *         password = ""
  *         settings = [mynew:"setting"]
  *     }
  *     sessionFactory(SessionFactory) {
- *         dataSource = dataSource                    // <-- getProperty for retrieving references
+ *         dataSource = dataSource                    // &lt;-- getProperty for retrieving references
  *     }
  *     myService(MyService) {
- *         nestedBean = { AnotherBean bean ->         // <-- setProperty with closure for nested bean
+ *         nestedBean = { AnotherBean bean -&gt;         // &lt;-- setProperty with closure for nested bean
  *             dataSource = dataSource
  *         }
  *     }
@@ -84,7 +84,7 @@ import org.springframework.lang.Nullable;
  *         dataSource = dataSource
  *     }
  *     myService(MyService) {
- *         nestedBean = { AnotherBean bean ->
+ *         nestedBean = { AnotherBean bean -&gt;
  *             dataSource = dataSource
  *         }
  *     }
diff --git a/spring-context/src/main/java/org/springframework/context/support/ReloadableResourceBundleMessageSource.java b/spring-context/src/main/java/org/springframework/context/support/ReloadableResourceBundleMessageSource.java
index e7f78f83f64..6b6ff96af18 100644
--- a/spring-context/src/main/java/org/springframework/context/support/ReloadableResourceBundleMessageSource.java
+++ b/spring-context/src/main/java/org/springframework/context/support/ReloadableResourceBundleMessageSource.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2002-2020 the original author or authors.
+ * Copyright 2002-2021 the original author or authors.
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
@@ -229,7 +229,7 @@ public class ReloadableResourceBundleMessageSource extends AbstractResourceBased
 	 * for a Locale, after merging all specified resource bundles.
 	 * Either fetches the holder from the cache or freshly loads it.
 	 * <p>Only used when caching resource bundle contents forever, i.e.
-	 * with cacheSeconds < 0. Therefore, merged properties are always
+	 * with cacheSeconds &lt; 0. Therefore, merged properties are always
 	 * cached forever.
 	 */
 	protected PropertiesHolder getMergedProperties(Locale locale) {
diff --git a/spring-context/src/main/java/org/springframework/format/support/DefaultFormattingConversionService.java b/spring-context/src/main/java/org/springframework/format/support/DefaultFormattingConversionService.java
index 805a9828c4c..3ffbba9ef09 100644
--- a/spring-context/src/main/java/org/springframework/format/support/DefaultFormattingConversionService.java
+++ b/spring-context/src/main/java/org/springframework/format/support/DefaultFormattingConversionService.java
@@ -37,7 +37,7 @@ import org.springframework.util.StringValueResolver;
  * as {@code DefaultConversionService} exposes its own
  * {@link DefaultConversionService#addDefaultConverters addDefaultConverters} method.
  *
- * <p>Automatically registers formatters for JSR-354 Money & Currency, JSR-310 Date-Time
+ * <p>Automatically registers formatters for JSR-354 Money &amp; Currency, JSR-310 Date-Time
  * and/or Joda-Time 2.x, depending on the presence of the corresponding API on the classpath.
  *
  * @author Chris Beams
@@ -100,7 +100,7 @@ public class DefaultFormattingConversionService extends FormattingConversionServ
 
 	/**
 	 * Add formatters appropriate for most environments: including number formatters,
-	 * JSR-354 Money & Currency formatters, JSR-310 Date-Time and/or Joda-Time formatters,
+	 * JSR-354 Money &amp; Currency formatters, JSR-310 Date-Time and/or Joda-Time formatters,
 	 * depending on the presence of the corresponding API on the classpath.
 	 * @param formatterRegistry the service to register default formatters with
 	 */
diff --git a/spring-context/src/main/java/org/springframework/validation/Validator.java b/spring-context/src/main/java/org/springframework/validation/Validator.java
index d95b054872b..b67b6d5d8b7 100644
--- a/spring-context/src/main/java/org/springframework/validation/Validator.java
+++ b/spring-context/src/main/java/org/springframework/validation/Validator.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2002-2018 the original author or authors.
+ * Copyright 2002-2021 the original author or authors.
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
@@ -33,7 +33,7 @@ package org.springframework.validation;
  * wholly of whitespace), and that any password that is present is
  * at least {@code 'MINIMUM_PASSWORD_LENGTH'} characters in length.
  *
- * <pre class="code"> public class UserLoginValidator implements Validator {
+ * <pre class="code">public class UserLoginValidator implements Validator {
  *
  *    private static final int MINIMUM_PASSWORD_LENGTH = 6;
  *
@@ -46,7 +46,7 @@ package org.springframework.validation;
  *       ValidationUtils.rejectIfEmptyOrWhitespace(errors, "password", "field.required");
  *       UserLogin login = (UserLogin) target;
  *       if (login.getPassword() != null
- *             && login.getPassword().trim().length() < MINIMUM_PASSWORD_LENGTH) {
+ *             &amp;&amp; login.getPassword().trim().length() &lt; MINIMUM_PASSWORD_LENGTH) {
  *          errors.rejectValue("password", "field.min.length",
  *                new Object[]{Integer.valueOf(MINIMUM_PASSWORD_LENGTH)},
  *                "The password must be at least [" + MINIMUM_PASSWORD_LENGTH + "] characters in length.");
diff --git a/spring-core/src/main/java/org/springframework/core/env/CommandLinePropertySource.java b/spring-core/src/main/java/org/springframework/core/env/CommandLinePropertySource.java
index 321629954d4..a7ee178a3e4 100644
--- a/spring-core/src/main/java/org/springframework/core/env/CommandLinePropertySource.java
+++ b/spring-core/src/main/java/org/springframework/core/env/CommandLinePropertySource.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2002-2018 the original author or authors.
+ * Copyright 2002-2021 the original author or authors.
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
@@ -110,7 +110,7 @@ import org.springframework.util.StringUtils;
  * evaluate true:
  *
  * <pre class="code">
- * CommandLinePropertySource<?> ps = ...
+ * CommandLinePropertySource&lt;?&gt; ps = ...
  * assert ps.containsProperty("o1") == true;
  * assert ps.containsProperty("o2") == true;
  * assert ps.containsProperty("o3") == false;
@@ -149,7 +149,7 @@ import org.springframework.util.StringUtils;
  * will evaluate true:
  *
  * <pre class="code">
- * CommandLinePropertySource<?> ps = ...
+ * CommandLinePropertySource&lt;?&gt; ps = ...
  * assert ps.containsProperty("o1") == true;
  * assert ps.containsProperty("o2") == true;
  * assert ps.containsProperty("nonOptionArgs") == true;
diff --git a/spring-core/src/main/java/org/springframework/core/env/JOptCommandLinePropertySource.java b/spring-core/src/main/java/org/springframework/core/env/JOptCommandLinePropertySource.java
index 64f67e3321b..22353e09895 100644
--- a/spring-core/src/main/java/org/springframework/core/env/JOptCommandLinePropertySource.java
+++ b/spring-core/src/main/java/org/springframework/core/env/JOptCommandLinePropertySource.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2002-2018 the original author or authors.
+ * Copyright 2002-2021 the original author or authors.
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
@@ -42,7 +42,7 @@ import org.springframework.util.StringUtils;
  *     parser.accepts("option1");
  *     parser.accepts("option2").withRequiredArg();
  *     OptionSet options = parser.parse(args);
- *     PropertySource<?> ps = new JOptCommandLinePropertySource(options);
+ *     PropertySource&lt;?&gt; ps = new JOptCommandLinePropertySource(options);
  *     // ...
  * }</pre>
  *
diff --git a/spring-core/src/main/java/org/springframework/core/env/SimpleCommandLinePropertySource.java b/spring-core/src/main/java/org/springframework/core/env/SimpleCommandLinePropertySource.java
index a4a25397ac9..c4f34a13e50 100644
--- a/spring-core/src/main/java/org/springframework/core/env/SimpleCommandLinePropertySource.java
+++ b/spring-core/src/main/java/org/springframework/core/env/SimpleCommandLinePropertySource.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2002-2020 the original author or authors.
+ * Copyright 2002-2021 the original author or authors.
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
@@ -66,7 +66,7 @@ import org.springframework.util.StringUtils;
  * <h3>Typical usage</h3>
  * <pre class="code">
  * public static void main(String[] args) {
- *     PropertySource<?> ps = new SimpleCommandLinePropertySource(args);
+ *     PropertySource&lt;?&gt; ps = new SimpleCommandLinePropertySource(args);
  *     // ...
  * }</pre>
  *
diff --git a/spring-jms/src/main/java/org/springframework/jms/annotation/EnableJms.java b/spring-jms/src/main/java/org/springframework/jms/annotation/EnableJms.java
index 79c4a3bca05..e4d97367d1f 100644
--- a/spring-jms/src/main/java/org/springframework/jms/annotation/EnableJms.java
+++ b/spring-jms/src/main/java/org/springframework/jms/annotation/EnableJms.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2002-2018 the original author or authors.
+ * Copyright 2002-2021 the original author or authors.
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
@@ -138,7 +138,7 @@ import org.springframework.context.annotation.Import;
  *     }
  *
  *     &#064;Bean
- *     public JmsListenerContainerFactory<?> myJmsListenerContainerFactory() {
+ *     public JmsListenerContainerFactory&lt;?&gt; myJmsListenerContainerFactory() {
  *         // factory settings
  *     }
  *
@@ -184,7 +184,7 @@ import org.springframework.context.annotation.Import;
  *     }
  *
  *     &#064;Bean
- *     public JmsListenerEndpointRegistry<?> myJmsListenerEndpointRegistry() {
+ *     public JmsListenerEndpointRegistry&lt;?&gt; myJmsListenerEndpointRegistry() {
  *         // registry configuration
  *     }
  *
@@ -246,7 +246,7 @@ import org.springframework.context.annotation.Import;
  *     }
  *
  *     &#064;Bean
- *     public JmsListenerContainerFactory<?> anotherJmsListenerContainerFactory() {
+ *     public JmsListenerContainerFactory&lt;?&gt; anotherJmsListenerContainerFactory() {
  *         // ...
  *     }
  *
diff --git a/spring-messaging/src/main/java/org/springframework/messaging/handler/AbstractMessageCondition.java b/spring-messaging/src/main/java/org/springframework/messaging/handler/AbstractMessageCondition.java
index 835020e90f6..93bb26fcac1 100644
--- a/spring-messaging/src/main/java/org/springframework/messaging/handler/AbstractMessageCondition.java
+++ b/spring-messaging/src/main/java/org/springframework/messaging/handler/AbstractMessageCondition.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2002-2019 the original author or authors.
+ * Copyright 2002-2021 the original author or authors.
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
@@ -67,7 +67,7 @@ public abstract class AbstractMessageCondition<T extends AbstractMessageConditio
 
 	/**
 	 * The notation to use when printing discrete items of content.
-	 * For example " || " for URL patterns or " && " for param expressions.
+	 * For example " || " for URL patterns or " &amp;&amp; " for param expressions.
 	 */
 	protected abstract String getToStringInfix();
 
diff --git a/spring-orm/src/main/java/org/springframework/orm/hibernate5/HibernateOperations.java b/spring-orm/src/main/java/org/springframework/orm/hibernate5/HibernateOperations.java
index fe2fd028b3c..0bd481af29f 100644
--- a/spring-orm/src/main/java/org/springframework/orm/hibernate5/HibernateOperations.java
+++ b/spring-orm/src/main/java/org/springframework/orm/hibernate5/HibernateOperations.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2002-2020 the original author or authors.
+ * Copyright 2002-2021 the original author or authors.
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
@@ -606,7 +606,7 @@ public interface HibernateOperations {
 	 * @param firstResult the index of the first result object to be retrieved
 	 * (numbered from 0)
 	 * @param maxResults the maximum number of result objects to retrieve
-	 * (or <=0 for no limit)
+	 * (or &lt;=0 for no limit)
 	 * @return a {@link List} containing 0 or more persistent instances
 	 * @throws DataAccessException in case of Hibernate errors
 	 * @see DetachedCriteria#getExecutableCriteria(org.hibernate.Session)
@@ -643,7 +643,7 @@ public interface HibernateOperations {
 	 * @param firstResult the index of the first result object to be retrieved
 	 * (numbered from 0)
 	 * @param maxResults the maximum number of result objects to retrieve
-	 * (or <=0 for no limit)
+	 * (or &lt;=0 for no limit)
 	 * @return a {@link List} containing 0 or more persistent instances
 	 * @throws DataAccessException in case of Hibernate errors
 	 * @see org.hibernate.criterion.Example#create(Object)
@@ -660,7 +660,7 @@ public interface HibernateOperations {
 	 * @param firstResult the index of the first result object to be retrieved
 	 * (numbered from 0)
 	 * @param maxResults the maximum number of result objects to retrieve
-	 * (or <=0 for no limit)
+	 * (or &lt;=0 for no limit)
 	 * @return a {@link List} containing 0 or more persistent instances
 	 * @throws DataAccessException in case of Hibernate errors
 	 * @see org.hibernate.criterion.Example#create(Object)
diff --git a/spring-web/src/main/java/org/springframework/http/HttpStatus.java b/spring-web/src/main/java/org/springframework/http/HttpStatus.java
index a02e5e1680a..f6a9911d1ab 100644
--- a/spring-web/src/main/java/org/springframework/http/HttpStatus.java
+++ b/spring-web/src/main/java/org/springframework/http/HttpStatus.java
@@ -285,21 +285,21 @@ public enum HttpStatus {
 	I_AM_A_TEAPOT(418, Series.CLIENT_ERROR, "I'm a teapot"),
 	/**
 	 * @deprecated See
-	 * <a href="https://tools.ietf.org/rfcdiff?difftype=--hwdiff&url2=draft-ietf-webdav-protocol-06.txt">
+	 * <a href="https://tools.ietf.org/rfcdiff?difftype=--hwdiff{@literal &}url2=draft-ietf-webdav-protocol-06.txt">
 	 *     WebDAV Draft Changes</a>
 	 */
 	@Deprecated
 	INSUFFICIENT_SPACE_ON_RESOURCE(419, Series.CLIENT_ERROR, "Insufficient Space On Resource"),
 	/**
 	 * @deprecated See
-	 * <a href="https://tools.ietf.org/rfcdiff?difftype=--hwdiff&url2=draft-ietf-webdav-protocol-06.txt">
+	 * <a href="https://tools.ietf.org/rfcdiff?difftype=--hwdiff{@literal &}url2=draft-ietf-webdav-protocol-06.txt">
 	 *     WebDAV Draft Changes</a>
 	 */
 	@Deprecated
 	METHOD_FAILURE(420, Series.CLIENT_ERROR, "Method Failure"),
 	/**
 	 * @deprecated
-	 * See <a href="https://tools.ietf.org/rfcdiff?difftype=--hwdiff&url2=draft-ietf-webdav-protocol-06.txt">
+	 * See <a href="https://tools.ietf.org/rfcdiff?difftype=--hwdiff{@literal &}url2=draft-ietf-webdav-protocol-06.txt">
 	 *     WebDAV Draft Changes</a>
 	 */
 	@Deprecated
diff --git a/spring-web/src/main/java/org/springframework/http/converter/json/Jackson2ObjectMapperBuilder.java b/spring-web/src/main/java/org/springframework/http/converter/json/Jackson2ObjectMapperBuilder.java
index 415113ff059..bdd1e577283 100644
--- a/spring-web/src/main/java/org/springframework/http/converter/json/Jackson2ObjectMapperBuilder.java
+++ b/spring-web/src/main/java/org/springframework/http/converter/json/Jackson2ObjectMapperBuilder.java
@@ -83,7 +83,7 @@ import org.springframework.util.xml.StaxUtils;
  * <li><a href="https://github.com/FasterXML/jackson-datatype-jdk8">jackson-datatype-jdk8</a>:
  * support for other Java 8 types like {@link java.util.Optional}</li>
  * <li><a href="https://github.com/FasterXML/jackson-datatype-jsr310">jackson-datatype-jsr310</a>:
- * support for Java 8 Date & Time API types</li>
+ * support for Java 8 Date &amp; Time API types</li>
  * <li><a href="https://github.com/FasterXML/jackson-datatype-joda">jackson-datatype-joda</a>:
  * support for Joda-Time types</li>
  * <li><a href="https://github.com/FasterXML/jackson-module-kotlin">jackson-module-kotlin</a>:
diff --git a/spring-web/src/main/java/org/springframework/http/converter/json/Jackson2ObjectMapperFactoryBean.java b/spring-web/src/main/java/org/springframework/http/converter/json/Jackson2ObjectMapperFactoryBean.java
index 57d3e63e184..376e6b27737 100644
--- a/spring-web/src/main/java/org/springframework/http/converter/json/Jackson2ObjectMapperFactoryBean.java
+++ b/spring-web/src/main/java/org/springframework/http/converter/json/Jackson2ObjectMapperFactoryBean.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2002-2020 the original author or authors.
+ * Copyright 2002-2021 the original author or authors.
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
@@ -62,54 +62,54 @@ import org.springframework.lang.Nullable;
  * <p>Example usage with
  * {@link MappingJackson2HttpMessageConverter}:
  *
- * <pre class="code">
- * &lt;bean class="org.springframework.http.converter.json.MappingJackson2HttpMessageConverter">
- *   &lt;property name="objectMapper">
- *     &lt;bean class="org.springframework.http.converter.json.Jackson2ObjectMapperFactoryBean"
+ * <pre class="code">{@code
+ * <bean class="org.springframework.http.converter.json.MappingJackson2HttpMessageConverter">
+ *   <property name="objectMapper">
+ *     <bean class="org.springframework.http.converter.json.Jackson2ObjectMapperFactoryBean"
  *       p:autoDetectFields="false"
  *       p:autoDetectGettersSetters="false"
  *       p:annotationIntrospector-ref="jaxbAnnotationIntrospector" />
- *   &lt;/property>
- * &lt;/bean>
- * </pre>
+ *   </property>
+ * </bean>
+ * }</pre>
  *
  * <p>Example usage with MappingJackson2JsonView:
  *
- * <pre class="code">
- * &lt;bean class="org.springframework.web.servlet.view.json.MappingJackson2JsonView">
- *   &lt;property name="objectMapper">
- *     &lt;bean class="org.springframework.http.converter.json.Jackson2ObjectMapperFactoryBean"
+ * <pre class="code">{@code
+ * <bean class="org.springframework.web.servlet.view.json.MappingJackson2JsonView">
+ *   <property name="objectMapper">
+ *     <bean class="org.springframework.http.converter.json.Jackson2ObjectMapperFactoryBean"
  *       p:failOnEmptyBeans="false"
  *       p:indentOutput="true">
- *       &lt;property name="serializers">
- *         &lt;array>
- *           &lt;bean class="org.mycompany.MyCustomSerializer" />
- *         &lt;/array>
- *       &lt;/property>
- *     &lt;/bean>
- *   &lt;/property>
- * &lt;/bean>
- * </pre>
+ *       <property name="serializers">
+ *         <array>
+ *           <bean class="org.mycompany.MyCustomSerializer" />
+ *         </array>
+ *       </property>
+ *     </bean>
+ *   </property>
+ * </bean>
+ * }</pre>
  *
  * <p>In case there are no specific setters provided (for some rarely used options),
  * you can still use the more general methods  {@link #setFeaturesToEnable} and
  * {@link #setFeaturesToDisable}.
  *
- * <pre class="code">
- * &lt;bean class="org.springframework.http.converter.json.Jackson2ObjectMapperFactoryBean">
- *   &lt;property name="featuresToEnable">
- *     &lt;array>
- *       &lt;util:constant static-field="com.fasterxml.jackson.databind.SerializationFeature.WRAP_ROOT_VALUE"/>
- *       &lt;util:constant static-field="com.fasterxml.jackson.databind.SerializationFeature.CLOSE_CLOSEABLE"/>
- *     &lt;/array>
- *   &lt;/property>
- *   &lt;property name="featuresToDisable">
- *     &lt;array>
- *       &lt;util:constant static-field="com.fasterxml.jackson.databind.MapperFeature.USE_ANNOTATIONS"/>
- *     &lt;/array>
- *   &lt;/property>
- * &lt;/bean>
- * </pre>
+ * <pre class="code">{@code
+ * <bean class="org.springframework.http.converter.json.Jackson2ObjectMapperFactoryBean">
+ *   <property name="featuresToEnable">
+ *     <array>
+ *       <util:constant static-field="com.fasterxml.jackson.databind.SerializationFeature.WRAP_ROOT_VALUE"/>
+ *       <util:constant static-field="com.fasterxml.jackson.databind.SerializationFeature.CLOSE_CLOSEABLE"/>
+ *     </array>
+ *   </property>
+ *   <property name="featuresToDisable">
+ *     <array>
+ *       <util:constant static-field="com.fasterxml.jackson.databind.MapperFeature.USE_ANNOTATIONS"/>
+ *     </array>
+ *   </property>
+ * </bean>
+ * }</pre>
  *
  * <p>It also automatically registers the following well-known modules if they are
  * detected on the classpath:
@@ -119,7 +119,7 @@ import org.springframework.lang.Nullable;
  * <li><a href="https://github.com/FasterXML/jackson-datatype-jdk8">jackson-datatype-jdk8</a>:
  * support for other Java 8 types like {@link java.util.Optional}</li>
  * <li><a href="https://github.com/FasterXML/jackson-datatype-jsr310">jackson-datatype-jsr310</a>:
- * support for Java 8 Date & Time API types</li>
+ * support for Java 8 Date &amp; Time API types</li>
  * <li><a href="https://github.com/FasterXML/jackson-datatype-joda">jackson-datatype-joda</a>:
  * support for Joda-Time types</li>
  * <li><a href="https://github.com/FasterXML/jackson-module-kotlin">jackson-module-kotlin</a>:
@@ -129,11 +129,11 @@ import org.springframework.lang.Nullable;
  * <p>In case you want to configure Jackson's {@link ObjectMapper} with a custom {@link Module},
  * you can register one or more such Modules by class name via {@link #setModulesToInstall}:
  *
- * <pre class="code">
- * &lt;bean class="org.springframework.http.converter.json.Jackson2ObjectMapperFactoryBean">
- *   &lt;property name="modulesToInstall" value="myapp.jackson.MySampleModule,myapp.jackson.MyOtherModule"/>
- * &lt;/bean
- * </pre>
+ * <pre class="code">{@code
+ * <bean class="org.springframework.http.converter.json.Jackson2ObjectMapperFactoryBean">
+ *   <property name="modulesToInstall" value="myapp.jackson.MySampleModule,myapp.jackson.MyOtherModule"/>
+ * </bean
+ * }</pre>
  *
  * <p>Compatible with Jackson 2.9 to 2.12, as of Spring 5.3.
  *
diff --git a/spring-web/src/main/java/org/springframework/web/util/HtmlUtils.java b/spring-web/src/main/java/org/springframework/web/util/HtmlUtils.java
index 3cac0b07bbe..07a200dc201 100644
--- a/spring-web/src/main/java/org/springframework/web/util/HtmlUtils.java
+++ b/spring-web/src/main/java/org/springframework/web/util/HtmlUtils.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2002-2019 the original author or authors.
+ * Copyright 2002-2021 the original author or authors.
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
@@ -49,7 +49,7 @@ public abstract class HtmlUtils {
 
 	/**
 	 * Turn special characters into HTML character references.
-	 * <p>Handles complete character set defined in HTML 4.01 recommendation.
+	 * <p>Handles the complete character set defined in the HTML 4.01 recommendation.
 	 * <p>Escapes all special characters to their corresponding
 	 * entity reference (e.g. {@code &lt;}).
 	 * <p>Reference:
@@ -65,7 +65,7 @@ public abstract class HtmlUtils {
 
 	/**
 	 * Turn special characters into HTML character references.
-	 * <p>Handles complete character set defined in HTML 4.01 recommendation.
+	 * <p>Handles the complete character set defined in the HTML 4.01 recommendation.
 	 * <p>Escapes all special characters to their corresponding
 	 * entity reference (e.g. {@code &lt;}) at least as required by the
 	 * specified encoding. In other words, if a special character does
@@ -98,9 +98,9 @@ public abstract class HtmlUtils {
 
 	/**
 	 * Turn special characters into HTML character references.
-	 * <p>Handles complete character set defined in HTML 4.01 recommendation.
+	 * <p>Handles the complete character set defined in the HTML 4.01 recommendation.
 	 * <p>Escapes all special characters to their corresponding numeric
-	 * reference in decimal format (&#<i>Decimal</i>;).
+	 * reference in decimal format (&amp;#<i>Decimal</i>;).
 	 * <p>Reference:
 	 * <a href="https://www.w3.org/TR/html4/sgml/entities.html">
 	 * https://www.w3.org/TR/html4/sgml/entities.html
@@ -114,9 +114,9 @@ public abstract class HtmlUtils {
 
 	/**
 	 * Turn special characters into HTML character references.
-	 * <p>Handles complete character set defined in HTML 4.01 recommendation.
+	 * <p>Handles the complete character set defined in the HTML 4.01 recommendation.
 	 * <p>Escapes all special characters to their corresponding numeric
-	 * reference in decimal format (&#<i>Decimal</i>;) at least as required by the
+	 * reference in decimal format (&amp;#<i>Decimal</i>;) at least as required by the
 	 * specified encoding. In other words, if a special character does
 	 * not have to be escaped for the given encoding, it may not be.
 	 * <p>Reference:
@@ -148,9 +148,9 @@ public abstract class HtmlUtils {
 
 	/**
 	 * Turn special characters into HTML character references.
-	 * <p>Handles complete character set defined in HTML 4.01 recommendation.
+	 * <p>Handles the complete character set defined in the HTML 4.01 recommendation.
 	 * <p>Escapes all special characters to their corresponding numeric
-	 * reference in hex format (&#x<i>Hex</i>;).
+	 * reference in hex format (&amp;#x<i>Hex</i>;).
 	 * <p>Reference:
 	 * <a href="https://www.w3.org/TR/html4/sgml/entities.html">
 	 * https://www.w3.org/TR/html4/sgml/entities.html
@@ -164,9 +164,9 @@ public abstract class HtmlUtils {
 
 	/**
 	 * Turn special characters into HTML character references.
-	 * <p>Handles complete character set defined in HTML 4.01 recommendation.
+	 * <p>Handles the complete character set defined in the HTML 4.01 recommendation.
 	 * <p>Escapes all special characters to their corresponding numeric
-	 * reference in hex format (&#x<i>Hex</i>;) at least as required by the
+	 * reference in hex format (&amp;#x<i>Hex</i>;) at least as required by the
 	 * specified encoding. In other words, if a special character does
 	 * not have to be escaped for the given encoding, it may not be.
 	 * <p>Reference:
diff --git a/spring-web/src/main/java/org/springframework/web/util/UriTemplate.java b/spring-web/src/main/java/org/springframework/web/util/UriTemplate.java
index 1abf615c8b8..770c6ad7498 100644
--- a/spring-web/src/main/java/org/springframework/web/util/UriTemplate.java
+++ b/spring-web/src/main/java/org/springframework/web/util/UriTemplate.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2002-2020 the original author or authors.
+ * Copyright 2002-2021 the original author or authors.
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
@@ -92,7 +92,7 @@ public class UriTemplate implements Serializable {
 	 * UriTemplate template = new UriTemplate("https://example.com/hotels/{hotel}/bookings/{booking}");
 	 * Map&lt;String, String&gt; uriVariables = new HashMap&lt;String, String&gt;();
 	 * uriVariables.put("booking", "42");
-	 * uriVariables.put("hotel", "Rest & Relax");
+	 * uriVariables.put("hotel", "Rest &amp; Relax");
 	 * System.out.println(template.expand(uriVariables));
 	 * </pre>
 	 * will print: <blockquote>{@code https://example.com/hotels/Rest%20%26%20Relax/bookings/42}</blockquote>
@@ -113,7 +113,7 @@ public class UriTemplate implements Serializable {
 	 * <p>Example:
 	 * <pre class="code">
 	 * UriTemplate template = new UriTemplate("https://example.com/hotels/{hotel}/bookings/{booking}");
-	 * System.out.println(template.expand("Rest & Relax", 42));
+	 * System.out.println(template.expand("Rest &amp; Relax", 42));
 	 * </pre>
 	 * will print: <blockquote>{@code https://example.com/hotels/Rest%20%26%20Relax/bookings/42}</blockquote>
 	 * @param uriVariableValues the array of URI variables
diff --git a/spring-web/src/main/java/org/springframework/web/util/UriUtils.java b/spring-web/src/main/java/org/springframework/web/util/UriUtils.java
index 4697b3affc6..a67be402e56 100644
--- a/spring-web/src/main/java/org/springframework/web/util/UriUtils.java
+++ b/spring-web/src/main/java/org/springframework/web/util/UriUtils.java
@@ -246,15 +246,15 @@ public abstract class UriUtils {
 	 * Encode the query parameters from the given {@code MultiValueMap} with UTF-8.
 	 * <p>This can be used with {@link UriComponentsBuilder#queryParams(MultiValueMap)}
 	 * when building a URI from an already encoded template.
-	 * <pre class="code">
-	 * MultiValueMap&lt;String, String&gt; params = new LinkedMultiValueMap<>(2);
+	 * <pre class="code">{@code
+	 * MultiValueMap<String, String> params = new LinkedMultiValueMap<>(2);
 	 * // add to params...
 	 *
 	 * ServletUriComponentsBuilder.fromCurrentRequest()
 	 *         .queryParams(UriUtils.encodeQueryParams(params))
 	 *         .build(true)
 	 *         .toUriString();
-	 * </pre>
+	 * }</pre>
 	 * @param params the parameters to encode
 	 * @return a new {@code MultiValueMap} with the encoded names and values
 	 * @since 5.2.3
diff --git a/spring-webflux/src/main/java/org/springframework/web/reactive/result/condition/CompositeRequestCondition.java b/spring-webflux/src/main/java/org/springframework/web/reactive/result/condition/CompositeRequestCondition.java
index 003f47caa24..afaf28433e7 100644
--- a/spring-webflux/src/main/java/org/springframework/web/reactive/result/condition/CompositeRequestCondition.java
+++ b/spring-webflux/src/main/java/org/springframework/web/reactive/result/condition/CompositeRequestCondition.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2002-2018 the original author or authors.
+ * Copyright 2002-2021 the original author or authors.
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
@@ -27,7 +27,7 @@ import org.springframework.web.server.ServerWebExchange;
 
 /**
  * Implements the {@link RequestCondition} contract by delegating to multiple
- * {@code RequestCondition} types and using a logical conjunction (' && ') to
+ * {@code RequestCondition} types and using a logical conjunction ({@code ' && '}) to
  * ensure all conditions match a given request.
  *
  * <p>When {@code CompositeRequestCondition} instances are combined or compared
diff --git a/spring-webflux/src/main/java/org/springframework/web/reactive/result/condition/HeadersRequestCondition.java b/spring-webflux/src/main/java/org/springframework/web/reactive/result/condition/HeadersRequestCondition.java
index 229b610b844..8a785dcb0ff 100644
--- a/spring-webflux/src/main/java/org/springframework/web/reactive/result/condition/HeadersRequestCondition.java
+++ b/spring-webflux/src/main/java/org/springframework/web/reactive/result/condition/HeadersRequestCondition.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2002-2020 the original author or authors.
+ * Copyright 2002-2021 the original author or authors.
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
@@ -28,7 +28,7 @@ import org.springframework.web.cors.reactive.CorsUtils;
 import org.springframework.web.server.ServerWebExchange;
 
 /**
- * A logical conjunction (' && ') request condition that matches a request against
+ * A logical conjunction ({@code ' && '}) request condition that matches a request against
  * a set of header expressions with syntax defined in {@link RequestMapping#headers()}.
  *
  * <p>Expressions passed to the constructor with header names 'Accept' or
diff --git a/spring-webflux/src/main/java/org/springframework/web/reactive/result/condition/ParamsRequestCondition.java b/spring-webflux/src/main/java/org/springframework/web/reactive/result/condition/ParamsRequestCondition.java
index 9b1bc9f904e..81ff4416ef9 100644
--- a/spring-webflux/src/main/java/org/springframework/web/reactive/result/condition/ParamsRequestCondition.java
+++ b/spring-webflux/src/main/java/org/springframework/web/reactive/result/condition/ParamsRequestCondition.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2002-2020 the original author or authors.
+ * Copyright 2002-2021 the original author or authors.
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
@@ -26,7 +26,7 @@ import org.springframework.web.bind.annotation.RequestMapping;
 import org.springframework.web.server.ServerWebExchange;
 
 /**
- * A logical conjunction (' && ') request condition that matches a request against
+ * A logical conjunction ({@code ' && '}) request condition that matches a request against
  * a set parameter expressions with syntax defined in {@link RequestMapping#params()}.
  *
  * @author Rossen Stoyanchev
diff --git a/spring-webmvc/src/main/java/org/springframework/web/servlet/mvc/condition/CompositeRequestCondition.java b/spring-webmvc/src/main/java/org/springframework/web/servlet/mvc/condition/CompositeRequestCondition.java
index 5857fdc5eb5..d2bf8da0ac2 100644
--- a/spring-webmvc/src/main/java/org/springframework/web/servlet/mvc/condition/CompositeRequestCondition.java
+++ b/spring-webmvc/src/main/java/org/springframework/web/servlet/mvc/condition/CompositeRequestCondition.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2002-2018 the original author or authors.
+ * Copyright 2002-2021 the original author or authors.
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
@@ -29,7 +29,7 @@ import org.springframework.util.ObjectUtils;
 
 /**
  * Implements the {@link RequestCondition} contract by delegating to multiple
- * {@code RequestCondition} types and using a logical conjunction (' && ') to
+ * {@code RequestCondition} types and using a logical conjunction ({@code ' && '}) to
  * ensure all conditions match a given request.
  *
  * <p>When {@code CompositeRequestCondition} instances are combined or compared
diff --git a/spring-webmvc/src/main/java/org/springframework/web/servlet/mvc/condition/HeadersRequestCondition.java b/spring-webmvc/src/main/java/org/springframework/web/servlet/mvc/condition/HeadersRequestCondition.java
index e3f1773318e..2f7fac423f4 100644
--- a/spring-webmvc/src/main/java/org/springframework/web/servlet/mvc/condition/HeadersRequestCondition.java
+++ b/spring-webmvc/src/main/java/org/springframework/web/servlet/mvc/condition/HeadersRequestCondition.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2002-2020 the original author or authors.
+ * Copyright 2002-2021 the original author or authors.
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
@@ -29,7 +29,7 @@ import org.springframework.web.bind.annotation.RequestMapping;
 import org.springframework.web.cors.CorsUtils;
 
 /**
- * A logical conjunction (' && ') request condition that matches a request against
+ * A logical conjunction ({@code ' && '}) request condition that matches a request against
  * a set of header expressions with syntax defined in {@link RequestMapping#headers()}.
  *
  * <p>Expressions passed to the constructor with header names 'Accept' or
diff --git a/spring-webmvc/src/main/java/org/springframework/web/servlet/mvc/condition/ParamsRequestCondition.java b/spring-webmvc/src/main/java/org/springframework/web/servlet/mvc/condition/ParamsRequestCondition.java
index f06f363aa2c..ead4ec3d049 100644
--- a/spring-webmvc/src/main/java/org/springframework/web/servlet/mvc/condition/ParamsRequestCondition.java
+++ b/spring-webmvc/src/main/java/org/springframework/web/servlet/mvc/condition/ParamsRequestCondition.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2002-2020 the original author or authors.
+ * Copyright 2002-2021 the original author or authors.
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
@@ -30,7 +30,7 @@ import org.springframework.web.bind.annotation.RequestMapping;
 import org.springframework.web.util.WebUtils;
 
 /**
- * A logical conjunction (' && ') request condition that matches a request against
+ * A logical conjunction ({@code ' && '}) request condition that matches a request against
  * a set parameter expressions with syntax defined in {@link RequestMapping#params()}.
  *
  * @author Arjen Poutsma
diff --git a/spring-webmvc/src/main/java/org/springframework/web/servlet/mvc/method/annotation/MvcUriComponentsBuilder.java b/spring-webmvc/src/main/java/org/springframework/web/servlet/mvc/method/annotation/MvcUriComponentsBuilder.java
index f6b2bf26c68..db1ca29c5c4 100644
--- a/spring-webmvc/src/main/java/org/springframework/web/servlet/mvc/method/annotation/MvcUriComponentsBuilder.java
+++ b/spring-webmvc/src/main/java/org/springframework/web/servlet/mvc/method/annotation/MvcUriComponentsBuilder.java
@@ -413,7 +413,7 @@ public class MvcUriComponentsBuilder {
 	 * A JSP can prepare a URL to the controller method as follows:
 	 *
 	 * <pre class="code">
-	 * <%@ taglib uri="http://www.springframework.org/tags" prefix="s" %>
+	 * &lt;%@ taglib uri="http://www.springframework.org/tags" prefix="s" %&gt;
 	 *
 	 * &lt;a href="${s:mvcUrl('PC#getPerson').arg(0,"123").build()}"&gt;Get Person&lt;/a&gt;
 	 * </pre>
diff --git a/spring-webmvc/src/main/java/org/springframework/web/servlet/tags/UrlTag.java b/spring-webmvc/src/main/java/org/springframework/web/servlet/tags/UrlTag.java
index 079b3214846..9b0043b3639 100644
--- a/spring-webmvc/src/main/java/org/springframework/web/servlet/tags/UrlTag.java
+++ b/spring-webmvc/src/main/java/org/springframework/web/servlet/tags/UrlTag.java
@@ -313,7 +313,7 @@ public class UrlTag extends HtmlEscapingAwareTag implements ParamAware {
 	 * @param usedParams set of parameter names that have been applied as
 	 * template params
 	 * @param includeQueryStringDelimiter true if the query string should start
-	 * with a '?' instead of '&'
+	 * with a '?' instead of '&amp;'
 	 * @return the query string
 	 */
 	protected String createQueryString(List<Param> params, Set<String> usedParams, boolean includeQueryStringDelimiter)