From 42e55c0cf76c0f7aabe7e78084a7caa1d41d6281 Mon Sep 17 00:00:00 2001
From: Yanming Zhou <zhouyanming@gmail.com>
Date: Fri, 30 Jan 2026 16:44:33 +0800
Subject: [PATCH] Polish lambda expression and method reference

See gh-49023

Signed-off-by: Yanming Zhou <zhouyanming@gmail.com>
---
 .../metrics/export/prometheus/PrometheusPushGatewayManager.java | 2 +-
 .../springframework/boot/autoconfigure/AutoConfigurations.java  | 2 +-
 .../boot/logging/log4j2/SpringBootPropertySource.java           | 2 +-
 3 files changed, 3 insertions(+), 3 deletions(-)

diff --git a/spring-boot-project/spring-boot-actuator/src/main/java/org/springframework/boot/actuate/metrics/export/prometheus/PrometheusPushGatewayManager.java b/spring-boot-project/spring-boot-actuator/src/main/java/org/springframework/boot/actuate/metrics/export/prometheus/PrometheusPushGatewayManager.java
index 443bccc93a3..c317c1b3339 100644
--- a/spring-boot-project/spring-boot-actuator/src/main/java/org/springframework/boot/actuate/metrics/export/prometheus/PrometheusPushGatewayManager.java
+++ b/spring-boot-project/spring-boot-actuator/src/main/java/org/springframework/boot/actuate/metrics/export/prometheus/PrometheusPushGatewayManager.java
@@ -160,7 +160,7 @@ public class PrometheusPushGatewayManager {
 
 		@Override
 		public ScheduledExecutorService getScheduledExecutor() throws IllegalStateException {
-			return Executors.newSingleThreadScheduledExecutor(this::newThread);
+			return Executors.newSingleThreadScheduledExecutor(this);
 		}
 
 	}
diff --git a/spring-boot-project/spring-boot-autoconfigure/src/main/java/org/springframework/boot/autoconfigure/AutoConfigurations.java b/spring-boot-project/spring-boot-autoconfigure/src/main/java/org/springframework/boot/autoconfigure/AutoConfigurations.java
index e2c29d46bcd..1384354933b 100644
--- a/spring-boot-project/spring-boot-autoconfigure/src/main/java/org/springframework/boot/autoconfigure/AutoConfigurations.java
+++ b/spring-boot-project/spring-boot-autoconfigure/src/main/java/org/springframework/boot/autoconfigure/AutoConfigurations.java
@@ -58,7 +58,7 @@ public class AutoConfigurations extends Configurations implements Ordered {
 	private static UnaryOperator<Collection<Class<?>>> sorter(UnaryOperator<String> replacementMapper) {
 		AutoConfigurationSorter sorter = new AutoConfigurationSorter(metadataReaderFactory, null, replacementMapper);
 		return (classes) -> {
-			List<String> names = classes.stream().map(Class::getName).map(replacementMapper::apply).toList();
+			List<String> names = classes.stream().map(Class::getName).map(replacementMapper).toList();
 			List<String> sorted = sorter.getInPriorityOrder(names);
 			return sorted.stream()
 				.map((className) -> ClassUtils.resolveClassName(className, null))
diff --git a/spring-boot-project/spring-boot/src/main/java/org/springframework/boot/logging/log4j2/SpringBootPropertySource.java b/spring-boot-project/spring-boot/src/main/java/org/springframework/boot/logging/log4j2/SpringBootPropertySource.java
index 3c857f2863d..979df697f25 100644
--- a/spring-boot-project/spring-boot/src/main/java/org/springframework/boot/logging/log4j2/SpringBootPropertySource.java
+++ b/spring-boot-project/spring-boot/src/main/java/org/springframework/boot/logging/log4j2/SpringBootPropertySource.java
@@ -39,7 +39,7 @@ public class SpringBootPropertySource implements PropertySource {
 
 	@Override
 	public void forEach(BiConsumer<String, String> action) {
-		this.properties.forEach(action::accept);
+		this.properties.forEach(action);
 	}
 
 	@Override