diff --git a/spring-beans/src/main/java/org/springframework/beans/factory/support/DefaultListableBeanFactory.java b/spring-beans/src/main/java/org/springframework/beans/factory/support/DefaultListableBeanFactory.java
index ded11d6fb19..ae601926028 100644
--- a/spring-beans/src/main/java/org/springframework/beans/factory/support/DefaultListableBeanFactory.java
+++ b/spring-beans/src/main/java/org/springframework/beans/factory/support/DefaultListableBeanFactory.java
@@ -1813,7 +1813,7 @@ public class DefaultListableBeanFactory extends AbstractAutowireCapableBeanFacto
 	 * Return whether the bean definition for the given bean name has been
 	 * marked as a primary bean.
 	 * @param beanName the name of the bean
-	 * @param beanInstance the corresponding bean instance (can be null)
+	 * @param beanInstance the corresponding bean instance (can be {@code null})
 	 * @return whether the given bean qualifies as primary
 	 */
 	protected boolean isPrimary(String beanName, Object beanInstance) {
diff --git a/spring-context/src/main/java/org/springframework/instrument/classloading/WeavingTransformer.java b/spring-context/src/main/java/org/springframework/instrument/classloading/WeavingTransformer.java
index 03db47b6b47..f0a51d719be 100644
--- a/spring-context/src/main/java/org/springframework/instrument/classloading/WeavingTransformer.java
+++ b/spring-context/src/main/java/org/springframework/instrument/classloading/WeavingTransformer.java
@@ -85,7 +85,7 @@ public class WeavingTransformer {
 	 * @param className the full qualified name of the class in dot format (i.e. some.package.SomeClass)
 	 * @param internalName class name internal name in / format (i.e. some/package/SomeClass)
 	 * @param bytes class byte definition
-	 * @param pd protection domain to be used (can be null)
+	 * @param pd protection domain to be used (can be {@code null})
 	 * @return (possibly transformed) class byte definition
 	 */
 	public byte[] transformIfNecessary(String className, String internalName, byte[] bytes, @Nullable ProtectionDomain pd) {