diff --git a/build.gradle b/build.gradle
index 852b6ee334..3db0d04aa3 100644
--- a/build.gradle
+++ b/build.gradle
@@ -84,7 +84,7 @@ configure(allprojects) { project ->
 				exclude group: "stax", name: "stax-api"
 			}
 			dependency "org.ogce:xpp3:1.1.6"
-			dependency "org.yaml:snakeyaml:1.29"
+			dependency "org.yaml:snakeyaml:1.30"
 
 			dependency "com.h2database:h2:1.4.200"
 			dependency "com.github.ben-manes.caffeine:caffeine:3.0.5"
@@ -183,7 +183,7 @@ configure(allprojects) { project ->
 				}
 				entry 'mockito-junit-jupiter'
 			}
-			dependency "io.mockk:mockk:1.12.0"
+			dependency "io.mockk:mockk:1.12.1"
 
 			dependency("net.sourceforge.htmlunit:htmlunit:2.55.0") {
 				exclude group: "commons-logging", name: "commons-logging"
diff --git a/spring-context/src/main/java/org/springframework/cache/annotation/AbstractCachingConfiguration.java b/spring-context/src/main/java/org/springframework/cache/annotation/AbstractCachingConfiguration.java
index 403c6e9dce..d6473e28e6 100644
--- a/spring-context/src/main/java/org/springframework/cache/annotation/AbstractCachingConfiguration.java
+++ b/spring-context/src/main/java/org/springframework/cache/annotation/AbstractCachingConfiguration.java
@@ -67,7 +67,7 @@ public abstract class AbstractCachingConfiguration implements ImportAware {
 	@Override
 	public void setImportMetadata(AnnotationMetadata importMetadata) {
 		this.enableCaching = AnnotationAttributes.fromMap(
-				importMetadata.getAnnotationAttributes(EnableCaching.class.getName(), false));
+				importMetadata.getAnnotationAttributes(EnableCaching.class.getName()));
 		if (this.enableCaching == null) {
 			throw new IllegalArgumentException(
 					"@EnableCaching is not present on importing class " + importMetadata.getClassName());
@@ -76,7 +76,7 @@ public abstract class AbstractCachingConfiguration implements ImportAware {
 
 	@Autowired
 	void setConfigurers(ObjectProvider<CachingConfigurer> configurers) {
-		Supplier<CachingConfigurer> cachingConfigurer = () -> {
+		Supplier<CachingConfigurer> configurer = () -> {
 			List<CachingConfigurer> candidates = configurers.stream().collect(Collectors.toList());
 			if (CollectionUtils.isEmpty(candidates)) {
 				return null;
@@ -89,7 +89,7 @@ public abstract class AbstractCachingConfiguration implements ImportAware {
 			}
 			return candidates.get(0);
 		};
-		useCachingConfigurer(new CachingConfigurerSupplier(cachingConfigurer));
+		useCachingConfigurer(new CachingConfigurerSupplier(configurer));
 	}
 
 	/**
diff --git a/spring-context/src/main/java/org/springframework/context/annotation/AnnotationConfigUtils.java b/spring-context/src/main/java/org/springframework/context/annotation/AnnotationConfigUtils.java
index 9a1a146290..bc5ad2a428 100644
--- a/spring-context/src/main/java/org/springframework/context/annotation/AnnotationConfigUtils.java
+++ b/spring-context/src/main/java/org/springframework/context/annotation/AnnotationConfigUtils.java
@@ -298,7 +298,7 @@ public abstract class AnnotationConfigUtils {
 
 	@Nullable
 	static AnnotationAttributes attributesFor(AnnotatedTypeMetadata metadata, String annotationClassName) {
-		return AnnotationAttributes.fromMap(metadata.getAnnotationAttributes(annotationClassName, false));
+		return AnnotationAttributes.fromMap(metadata.getAnnotationAttributes(annotationClassName));
 	}
 
 	static Set<AnnotationAttributes> attributesForRepeatable(AnnotationMetadata metadata,
@@ -314,10 +314,10 @@ public abstract class AnnotationConfigUtils {
 		Set<AnnotationAttributes> result = new LinkedHashSet<>();
 
 		// Direct annotation present?
-		addAttributesIfNotNull(result, metadata.getAnnotationAttributes(annotationClassName, false));
+		addAttributesIfNotNull(result, metadata.getAnnotationAttributes(annotationClassName));
 
 		// Container annotation present?
-		Map<String, Object> container = metadata.getAnnotationAttributes(containerClassName, false);
+		Map<String, Object> container = metadata.getAnnotationAttributes(containerClassName);
 		if (container != null && container.containsKey("value")) {
 			for (Map<String, Object> containedAttributes : (Map<String, Object>[]) container.get("value")) {
 				addAttributesIfNotNull(result, containedAttributes);
diff --git a/spring-context/src/main/java/org/springframework/scheduling/annotation/AbstractAsyncConfiguration.java b/spring-context/src/main/java/org/springframework/scheduling/annotation/AbstractAsyncConfiguration.java
index 2558ab5684..53d7749982 100644
--- a/spring-context/src/main/java/org/springframework/scheduling/annotation/AbstractAsyncConfiguration.java
+++ b/spring-context/src/main/java/org/springframework/scheduling/annotation/AbstractAsyncConfiguration.java
@@ -59,7 +59,7 @@ public abstract class AbstractAsyncConfiguration implements ImportAware {
 	@Override
 	public void setImportMetadata(AnnotationMetadata importMetadata) {
 		this.enableAsync = AnnotationAttributes.fromMap(
-				importMetadata.getAnnotationAttributes(EnableAsync.class.getName(), false));
+				importMetadata.getAnnotationAttributes(EnableAsync.class.getName()));
 		if (this.enableAsync == null) {
 			throw new IllegalArgumentException(
 					"@EnableAsync is not present on importing class " + importMetadata.getClassName());
@@ -71,7 +71,7 @@ public abstract class AbstractAsyncConfiguration implements ImportAware {
 	 */
 	@Autowired
 	void setConfigurers(ObjectProvider<AsyncConfigurer> configurers) {
-		Supplier<AsyncConfigurer> asyncConfigurer = SingletonSupplier.of(() -> {
+		Supplier<AsyncConfigurer> configurer = SingletonSupplier.of(() -> {
 			List<AsyncConfigurer> candidates = configurers.stream().collect(Collectors.toList());
 			if (CollectionUtils.isEmpty(candidates)) {
 				return null;
@@ -81,14 +81,14 @@ public abstract class AbstractAsyncConfiguration implements ImportAware {
 			}
 			return candidates.get(0);
 		});
-		this.executor = adapt(asyncConfigurer, AsyncConfigurer::getAsyncExecutor);
-		this.exceptionHandler = adapt(asyncConfigurer, AsyncConfigurer::getAsyncUncaughtExceptionHandler);
+		this.executor = adapt(configurer, AsyncConfigurer::getAsyncExecutor);
+		this.exceptionHandler = adapt(configurer, AsyncConfigurer::getAsyncUncaughtExceptionHandler);
 	}
 
 	private <T> Supplier<T> adapt(Supplier<AsyncConfigurer> supplier, Function<AsyncConfigurer, T> provider) {
 		return () -> {
-			AsyncConfigurer asyncConfigurer = supplier.get();
-			return (asyncConfigurer != null) ? provider.apply(asyncConfigurer) : null;
+			AsyncConfigurer configurer = supplier.get();
+			return (configurer != null ? provider.apply(configurer) : null);
 		};
 	}
 
diff --git a/spring-tx/src/main/java/org/springframework/transaction/annotation/AbstractTransactionManagementConfiguration.java b/spring-tx/src/main/java/org/springframework/transaction/annotation/AbstractTransactionManagementConfiguration.java
index 460105d9ea..0e885081fa 100644
--- a/spring-tx/src/main/java/org/springframework/transaction/annotation/AbstractTransactionManagementConfiguration.java
+++ b/spring-tx/src/main/java/org/springframework/transaction/annotation/AbstractTransactionManagementConfiguration.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.
@@ -57,7 +57,7 @@ public abstract class AbstractTransactionManagementConfiguration implements Impo
 	@Override
 	public void setImportMetadata(AnnotationMetadata importMetadata) {
 		this.enableTx = AnnotationAttributes.fromMap(
-				importMetadata.getAnnotationAttributes(EnableTransactionManagement.class.getName(), false));
+				importMetadata.getAnnotationAttributes(EnableTransactionManagement.class.getName()));
 		if (this.enableTx == null) {
 			throw new IllegalArgumentException(
 					"@EnableTransactionManagement is not present on importing class " + importMetadata.getClassName());