diff --git a/spring-boot-project/spring-boot-actuator-autoconfigure/src/main/java/org/springframework/boot/actuate/autoconfigure/health/HealthIndicatorRegistryBeans.java b/spring-boot-project/spring-boot-actuator-autoconfigure/src/main/java/org/springframework/boot/actuate/autoconfigure/health/HealthIndicatorRegistryBeans.java
index 2a1f09c9b96..6d8f4fb3d4d 100644
--- a/spring-boot-project/spring-boot-actuator-autoconfigure/src/main/java/org/springframework/boot/actuate/autoconfigure/health/HealthIndicatorRegistryBeans.java
+++ b/spring-boot-project/spring-boot-actuator-autoconfigure/src/main/java/org/springframework/boot/actuate/autoconfigure/health/HealthIndicatorRegistryBeans.java
@@ -38,8 +38,8 @@ final class HealthIndicatorRegistryBeans {
 	}
 
 	static HealthIndicatorRegistry get(ApplicationContext applicationContext) {
-		Map<String, HealthIndicator> indicators = new LinkedHashMap<>();
-		indicators.putAll(applicationContext.getBeansOfType(HealthIndicator.class));
+		Map<String, HealthIndicator> indicators = new LinkedHashMap<>(
+				applicationContext.getBeansOfType(HealthIndicator.class));
 		if (ClassUtils.isPresent("reactor.core.publisher.Flux", null)) {
 			new ReactiveHealthIndicators().get(applicationContext).forEach(indicators::putIfAbsent);
 		}
diff --git a/spring-boot-project/spring-boot-actuator-autoconfigure/src/main/java/org/springframework/boot/actuate/autoconfigure/web/servlet/CompositeHandlerAdapter.java b/spring-boot-project/spring-boot-actuator-autoconfigure/src/main/java/org/springframework/boot/actuate/autoconfigure/web/servlet/CompositeHandlerAdapter.java
index 9918ca55f9b..a116a10a92a 100644
--- a/spring-boot-project/spring-boot-actuator-autoconfigure/src/main/java/org/springframework/boot/actuate/autoconfigure/web/servlet/CompositeHandlerAdapter.java
+++ b/spring-boot-project/spring-boot-actuator-autoconfigure/src/main/java/org/springframework/boot/actuate/autoconfigure/web/servlet/CompositeHandlerAdapter.java
@@ -74,8 +74,7 @@ class CompositeHandlerAdapter implements HandlerAdapter {
 	}
 
 	private List<HandlerAdapter> extractAdapters() {
-		List<HandlerAdapter> list = new ArrayList<>();
-		list.addAll(this.beanFactory.getBeansOfType(HandlerAdapter.class).values());
+		List<HandlerAdapter> list = new ArrayList<>(this.beanFactory.getBeansOfType(HandlerAdapter.class).values());
 		list.remove(this);
 		AnnotationAwareOrderComparator.sort(list);
 		return list;
diff --git a/spring-boot-project/spring-boot-actuator-autoconfigure/src/main/java/org/springframework/boot/actuate/autoconfigure/web/servlet/CompositeHandlerExceptionResolver.java b/spring-boot-project/spring-boot-actuator-autoconfigure/src/main/java/org/springframework/boot/actuate/autoconfigure/web/servlet/CompositeHandlerExceptionResolver.java
index adff968d14f..6d7b7121e35 100644
--- a/spring-boot-project/spring-boot-actuator-autoconfigure/src/main/java/org/springframework/boot/actuate/autoconfigure/web/servlet/CompositeHandlerExceptionResolver.java
+++ b/spring-boot-project/spring-boot-actuator-autoconfigure/src/main/java/org/springframework/boot/actuate/autoconfigure/web/servlet/CompositeHandlerExceptionResolver.java
@@ -55,8 +55,8 @@ class CompositeHandlerExceptionResolver implements HandlerExceptionResolver {
 	}
 
 	private List<HandlerExceptionResolver> extractResolvers() {
-		List<HandlerExceptionResolver> list = new ArrayList<>();
-		list.addAll(this.beanFactory.getBeansOfType(HandlerExceptionResolver.class).values());
+		List<HandlerExceptionResolver> list = new ArrayList<>(
+				this.beanFactory.getBeansOfType(HandlerExceptionResolver.class).values());
 		list.remove(this);
 		AnnotationAwareOrderComparator.sort(list);
 		if (list.isEmpty()) {
diff --git a/spring-boot-project/spring-boot-actuator-autoconfigure/src/main/java/org/springframework/boot/actuate/autoconfigure/web/servlet/CompositeHandlerMapping.java b/spring-boot-project/spring-boot-actuator-autoconfigure/src/main/java/org/springframework/boot/actuate/autoconfigure/web/servlet/CompositeHandlerMapping.java
index dd42a6ac370..cacc8674f1b 100644
--- a/spring-boot-project/spring-boot-actuator-autoconfigure/src/main/java/org/springframework/boot/actuate/autoconfigure/web/servlet/CompositeHandlerMapping.java
+++ b/spring-boot-project/spring-boot-actuator-autoconfigure/src/main/java/org/springframework/boot/actuate/autoconfigure/web/servlet/CompositeHandlerMapping.java
@@ -56,8 +56,7 @@ class CompositeHandlerMapping implements HandlerMapping {
 	}
 
 	private List<HandlerMapping> extractMappings() {
-		List<HandlerMapping> list = new ArrayList<>();
-		list.addAll(this.beanFactory.getBeansOfType(HandlerMapping.class).values());
+		List<HandlerMapping> list = new ArrayList<>(this.beanFactory.getBeansOfType(HandlerMapping.class).values());
 		list.remove(this);
 		AnnotationAwareOrderComparator.sort(list);
 		return list;