diff --git a/spring-context-support/src/main/java/org/springframework/cache/jcache/config/AbstractJCacheConfiguration.java b/spring-context-support/src/main/java/org/springframework/cache/jcache/config/AbstractJCacheConfiguration.java
index 3f25f90f885..9083eb2703b 100644
--- a/spring-context-support/src/main/java/org/springframework/cache/jcache/config/AbstractJCacheConfiguration.java
+++ b/spring-context-support/src/main/java/org/springframework/cache/jcache/config/AbstractJCacheConfiguration.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2002-2015 the original author or authors.
+ * Copyright 2002-2020 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.
@@ -35,7 +35,7 @@ import org.springframework.context.annotation.Role;
  * @see JCacheConfigurer
  */
 @Configuration
-public class AbstractJCacheConfiguration extends AbstractCachingConfiguration {
+public abstract class AbstractJCacheConfiguration extends AbstractCachingConfiguration {
 
 	protected CacheResolver exceptionCacheResolver;
 
diff --git a/spring-context/src/main/java/org/springframework/jmx/export/metadata/AbstractJmxAttribute.java b/spring-context/src/main/java/org/springframework/jmx/export/metadata/AbstractJmxAttribute.java
index 1054ad11752..03f87424db9 100644
--- a/spring-context/src/main/java/org/springframework/jmx/export/metadata/AbstractJmxAttribute.java
+++ b/spring-context/src/main/java/org/springframework/jmx/export/metadata/AbstractJmxAttribute.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2002-2007 the original author or authors.
+ * Copyright 2002-2020 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.
@@ -22,7 +22,7 @@ package org.springframework.jmx.export.metadata;
  * @author Rob Harrop
  * @since 1.2
  */
-public class AbstractJmxAttribute {
+public abstract class AbstractJmxAttribute {
 
 	private String description = "";
 
diff --git a/spring-webmvc/src/main/java/org/springframework/web/servlet/view/AbstractTemplateViewResolver.java b/spring-webmvc/src/main/java/org/springframework/web/servlet/view/AbstractTemplateViewResolver.java
index df8d302eca5..7836b60eddd 100644
--- a/spring-webmvc/src/main/java/org/springframework/web/servlet/view/AbstractTemplateViewResolver.java
+++ b/spring-webmvc/src/main/java/org/springframework/web/servlet/view/AbstractTemplateViewResolver.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2002-2007 the original author or authors.
+ * Copyright 2002-2020 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 @@ package org.springframework.web.servlet.view;
  * @see org.springframework.web.servlet.view.velocity.VelocityViewResolver
  * @see org.springframework.web.servlet.view.freemarker.FreeMarkerViewResolver
  */
-public class AbstractTemplateViewResolver extends UrlBasedViewResolver {
+public abstract class AbstractTemplateViewResolver extends UrlBasedViewResolver {
 
 	private boolean exposeRequestAttributes = false;