diff --git a/spring-beans/src/main/java/org/springframework/beans/factory/annotation/InjectionMetadata.java b/spring-beans/src/main/java/org/springframework/beans/factory/annotation/InjectionMetadata.java
index 0cd614f36c..590c2152f5 100644
--- a/spring-beans/src/main/java/org/springframework/beans/factory/annotation/InjectionMetadata.java
+++ b/spring-beans/src/main/java/org/springframework/beans/factory/annotation/InjectionMetadata.java
@@ -106,8 +106,7 @@ public class InjectionMetadata {
 	 * @since 6.0.10
 	 */
 	public Collection<InjectedElement> getInjectedElements(@Nullable PropertyValues pvs) {
-		return this.injectedElements.stream()
-				.filter(candidate -> candidate.shouldInject(pvs)).toList();
+		return this.injectedElements.stream().filter(candidate -> candidate.shouldInject(pvs)).toList();
 	}
 
 	/**
@@ -117,7 +116,7 @@ public class InjectionMetadata {
 	 * @since 5.2.4
 	 */
 	protected boolean needsRefresh(Class<?> clazz) {
-		return this.targetClass != clazz;
+		return (this.targetClass != clazz);
 	}
 
 	public void checkConfigMembers(RootBeanDefinition beanDefinition) {
diff --git a/spring-core/src/main/java/org/springframework/core/serializer/DefaultDeserializer.java b/spring-core/src/main/java/org/springframework/core/serializer/DefaultDeserializer.java
index ddc87f3133..07bf246b05 100644
--- a/spring-core/src/main/java/org/springframework/core/serializer/DefaultDeserializer.java
+++ b/spring-core/src/main/java/org/springframework/core/serializer/DefaultDeserializer.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2002-2022 the original author or authors.
+ * Copyright 2002-2023 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.
@@ -50,6 +50,7 @@ public class DefaultDeserializer implements Deserializer<Object> {
 	/**
 	 * Create a {@code DefaultDeserializer} for using an {@link ObjectInputStream}
 	 * with the given {@code ClassLoader}.
+	 * @param classLoader the ClassLoader to use
 	 * @since 4.2.1
 	 * @see ConfigurableObjectInputStream#ConfigurableObjectInputStream(InputStream, ClassLoader)
 	 */
diff --git a/spring-core/src/main/java/org/springframework/core/serializer/support/DeserializingConverter.java b/spring-core/src/main/java/org/springframework/core/serializer/support/DeserializingConverter.java
index 7412907159..782ddc901b 100644
--- a/spring-core/src/main/java/org/springframework/core/serializer/support/DeserializingConverter.java
+++ b/spring-core/src/main/java/org/springframework/core/serializer/support/DeserializingConverter.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2002-2015 the original author or authors.
+ * Copyright 2002-2023 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.
@@ -21,6 +21,7 @@ import java.io.ByteArrayInputStream;
 import org.springframework.core.convert.converter.Converter;
 import org.springframework.core.serializer.DefaultDeserializer;
 import org.springframework.core.serializer.Deserializer;
+import org.springframework.lang.Nullable;
 import org.springframework.util.Assert;
 
 /**
@@ -50,10 +51,11 @@ public class DeserializingConverter implements Converter<byte[], Object> {
 	/**
 	 * Create a {@code DeserializingConverter} for using an {@link java.io.ObjectInputStream}
 	 * with the given {@code ClassLoader}.
+	 * @param classLoader the ClassLoader to use
 	 * @since 4.2.1
 	 * @see DefaultDeserializer#DefaultDeserializer(ClassLoader)
 	 */
-	public DeserializingConverter(ClassLoader classLoader) {
+	public DeserializingConverter(@Nullable ClassLoader classLoader) {
 		this.deserializer = new DefaultDeserializer(classLoader);
 	}
 
diff --git a/spring-web/src/main/java/org/springframework/web/server/ServerWebExchange.java b/spring-web/src/main/java/org/springframework/web/server/ServerWebExchange.java
index c1f758c7e7..56c5cef3a6 100644
--- a/spring-web/src/main/java/org/springframework/web/server/ServerWebExchange.java
+++ b/spring-web/src/main/java/org/springframework/web/server/ServerWebExchange.java
@@ -148,11 +148,10 @@ public interface ServerWebExchange {
 	 */
 	default Mono<Void> cleanupMultipart() {
 		return getMultipartData()
-				.onErrorResume(t -> Mono.empty()) // ignore errors reading multipart data
+				.onErrorResume(t -> Mono.empty())  // ignore errors reading multipart data
 				.flatMapIterable(Map::values)
 				.flatMapIterable(Function.identity())
-				.flatMap(part -> part.delete()
-								.onErrorResume(ex -> Mono.empty()))
+				.flatMap(part -> part.delete().onErrorResume(ex -> Mono.empty()))
 				.then();
 	}