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 d8c54764cd2..f0bb35b955b 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
@@ -1,5 +1,5 @@
 /*
- * Copyright 2002-2023 the original author or authors.
+ * Copyright 2002-2024 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.
@@ -121,16 +121,16 @@ public class DefaultListableBeanFactory extends AbstractAutowireCapableBeanFacto
 		implements ConfigurableListableBeanFactory, BeanDefinitionRegistry, Serializable {
 
 	@Nullable
-	private static Class<?> javaxInjectProviderClass;
+	private static Class<?> jakartaInjectProviderClass;
 
 	static {
 		try {
-			javaxInjectProviderClass =
+			jakartaInjectProviderClass =
 					ClassUtils.forName("jakarta.inject.Provider", DefaultListableBeanFactory.class.getClassLoader());
 		}
 		catch (ClassNotFoundException ex) {
 			// JSR-330 API not available - Provider interface simply not supported then.
-			javaxInjectProviderClass = null;
+			jakartaInjectProviderClass = null;
 		}
 	}
 
@@ -1327,7 +1327,7 @@ else if (ObjectFactory.class == descriptor.getDependencyType() ||
 				ObjectProvider.class == descriptor.getDependencyType()) {
 			return new DependencyObjectProvider(descriptor, requestingBeanName);
 		}
-		else if (javaxInjectProviderClass == descriptor.getDependencyType()) {
+		else if (jakartaInjectProviderClass == descriptor.getDependencyType()) {
 			return new Jsr330Factory().createDependencyProvider(descriptor, requestingBeanName);
 		}
 		else {
@@ -1757,7 +1757,7 @@ else if (candidatePriority < highestPriority) {
 	 * 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-core/src/main/java/org/springframework/aot/hint/BindingReflectionHintsRegistrar.java b/spring-core/src/main/java/org/springframework/aot/hint/BindingReflectionHintsRegistrar.java
index 9e5173ab7e6..35a10dfba70 100644
--- a/spring-core/src/main/java/org/springframework/aot/hint/BindingReflectionHintsRegistrar.java
+++ b/spring-core/src/main/java/org/springframework/aot/hint/BindingReflectionHintsRegistrar.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2002-2023 the original author or authors.
+ * Copyright 2002-2024 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.
@@ -40,7 +40,7 @@
 
 /**
  * Register the necessary reflection hints so that the specified type can be
- * bound at runtime. Fields, constructors, properties and record components
+ * bound at runtime. Fields, constructors, properties, and record components
  * are registered, except for a set of types like those in the {@code java.}
  * package where just the type is registered. Types are discovered transitively
  * on properties and record components, and generic types are registered as well.
@@ -54,8 +54,9 @@ public class BindingReflectionHintsRegistrar {
 
 	private static final String JACKSON_ANNOTATION = "com.fasterxml.jackson.annotation.JacksonAnnotation";
 
-	private static final boolean jacksonAnnotationPresent = ClassUtils.isPresent(JACKSON_ANNOTATION,
-			BindingReflectionHintsRegistrar.class.getClassLoader());
+	private static final boolean jacksonAnnotationPresent =
+			ClassUtils.isPresent(JACKSON_ANNOTATION, BindingReflectionHintsRegistrar.class.getClassLoader());
+
 
 	/**
 	 * Register the necessary reflection hints to bind the specified types.
@@ -94,8 +95,7 @@ private void registerReflectionHints(ReflectionHints hints, Set<Type> seen, Type
 							registerRecordHints(hints, seen, recordComponent.getAccessor());
 						}
 					}
-					typeHint.withMembers(
-							MemberCategory.DECLARED_FIELDS,
+					typeHint.withMembers(MemberCategory.DECLARED_FIELDS,
 							MemberCategory.INVOKE_DECLARED_CONSTRUCTORS);
 					for (Method method : clazz.getMethods()) {
 						String methodName = method.getName();
@@ -132,8 +132,7 @@ private void registerRecordHints(ReflectionHints hints, Set<Type> seen, Method m
 	}
 
 	private void registerPropertyHints(ReflectionHints hints, Set<Type> seen, @Nullable Method method, int parameterIndex) {
-		if (method != null && method.getDeclaringClass() != Object.class &&
-				method.getDeclaringClass() != Enum.class) {
+		if (method != null && method.getDeclaringClass() != Object.class && method.getDeclaringClass() != Enum.class) {
 			hints.registerMethod(method, ExecutableMode.INVOKE);
 			MethodParameter methodParameter = MethodParameter.forExecutable(method, parameterIndex);
 			Type methodParameterType = methodParameter.getGenericParameterType();
@@ -191,13 +190,13 @@ private void forEachJacksonAnnotation(AnnotatedElement element, Consumer<MergedA
 				.from(element, MergedAnnotations.SearchStrategy.TYPE_HIERARCHY)
 				.stream(JACKSON_ANNOTATION)
 				.filter(MergedAnnotation::isMetaPresent)
-				.forEach(action::accept);
+				.forEach(action);
 	}
 
 	private void registerHintsForClassAttributes(ReflectionHints hints, MergedAnnotation<Annotation> annotation) {
-		annotation.getRoot().asMap().forEach((key,value) -> {
+		annotation.getRoot().asMap().forEach((attributeName, value) -> {
 			if (value instanceof Class<?> classValue && value != Void.class) {
-				if (key.equals("builder")) {
+				if (attributeName.equals("builder")) {
 					hints.registerType(classValue, MemberCategory.INVOKE_DECLARED_CONSTRUCTORS,
 							MemberCategory.INVOKE_DECLARED_METHODS);
 				}
@@ -208,6 +207,7 @@ private void registerHintsForClassAttributes(ReflectionHints hints, MergedAnnota
 		});
 	}
 
+
 	/**
 	 * Inner class to avoid a hard dependency on Kotlin at runtime.
 	 */
diff --git a/spring-web/src/main/java/org/springframework/http/CacheControl.java b/spring-web/src/main/java/org/springframework/http/CacheControl.java
index 4cb693cf8f9..00b32d8aa48 100644
--- a/spring-web/src/main/java/org/springframework/http/CacheControl.java
+++ b/spring-web/src/main/java/org/springframework/http/CacheControl.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2002-2023 the original author or authors.
+ * Copyright 2002-2024 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.
@@ -393,7 +393,7 @@ private String toHeaderValue() {
 	}
 
 	private void appendDirective(StringBuilder builder, String value) {
-		if (builder.length() > 0) {
+		if (!builder.isEmpty()) {
 			builder.append(", ");
 		}
 		builder.append(value);