diff --git a/spring-boot-project/spring-boot-autoconfigure/src/test/java/org/springframework/boot/autoconfigure/http/HttpMessageConvertersTests.java b/spring-boot-project/spring-boot-autoconfigure/src/test/java/org/springframework/boot/autoconfigure/http/HttpMessageConvertersTests.java
index 17dcc631d1..bcc3c96bb5 100644
--- a/spring-boot-project/spring-boot-autoconfigure/src/test/java/org/springframework/boot/autoconfigure/http/HttpMessageConvertersTests.java
+++ b/spring-boot-project/spring-boot-autoconfigure/src/test/java/org/springframework/boot/autoconfigure/http/HttpMessageConvertersTests.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2012-2024 the original author or authors.
+ * Copyright 2012-2025 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.
@@ -33,6 +33,7 @@ import org.springframework.http.converter.json.GsonHttpMessageConverter;
 import org.springframework.http.converter.json.MappingJackson2HttpMessageConverter;
 import org.springframework.http.converter.support.AllEncompassingFormHttpMessageConverter;
 import org.springframework.http.converter.xml.MappingJackson2XmlHttpMessageConverter;
+import org.springframework.http.converter.yaml.MappingJackson2YamlHttpMessageConverter;
 
 import static org.assertj.core.api.Assertions.assertThat;
 import static org.mockito.Mockito.mock;
@@ -56,7 +57,7 @@ class HttpMessageConvertersTests {
 				StringHttpMessageConverter.class, ResourceHttpMessageConverter.class,
 				ResourceRegionHttpMessageConverter.class, AllEncompassingFormHttpMessageConverter.class,
 				MappingJackson2HttpMessageConverter.class, MappingJackson2CborHttpMessageConverter.class,
-				MappingJackson2XmlHttpMessageConverter.class);
+				MappingJackson2YamlHttpMessageConverter.class, MappingJackson2XmlHttpMessageConverter.class);
 	}
 
 	@Test
@@ -125,7 +126,8 @@ class HttpMessageConvertersTests {
 		assertThat(converterClasses).containsExactly(ByteArrayHttpMessageConverter.class,
 				StringHttpMessageConverter.class, ResourceHttpMessageConverter.class,
 				ResourceRegionHttpMessageConverter.class, AllEncompassingFormHttpMessageConverter.class,
-				MappingJackson2HttpMessageConverter.class, MappingJackson2CborHttpMessageConverter.class);
+				MappingJackson2HttpMessageConverter.class, MappingJackson2CborHttpMessageConverter.class,
+				MappingJackson2YamlHttpMessageConverter.class);
 	}
 
 	@Test
@@ -146,7 +148,8 @@ class HttpMessageConvertersTests {
 		}
 		assertThat(converterClasses).containsExactly(ByteArrayHttpMessageConverter.class,
 				StringHttpMessageConverter.class, ResourceHttpMessageConverter.class,
-				MappingJackson2HttpMessageConverter.class, MappingJackson2CborHttpMessageConverter.class);
+				MappingJackson2HttpMessageConverter.class, MappingJackson2CborHttpMessageConverter.class,
+				MappingJackson2YamlHttpMessageConverter.class);
 	}
 
 	private List<HttpMessageConverter<?>> extractFormPartConverters(List<HttpMessageConverter<?>> converters) {
diff --git a/spring-boot-project/spring-boot-tools/spring-boot-maven-plugin/src/intTest/java/org/springframework/boot/maven/JarIntegrationTests.java b/spring-boot-project/spring-boot-tools/spring-boot-maven-plugin/src/intTest/java/org/springframework/boot/maven/JarIntegrationTests.java
index 7e9c578c9b..dc5cf7da99 100644
--- a/spring-boot-project/spring-boot-tools/spring-boot-maven-plugin/src/intTest/java/org/springframework/boot/maven/JarIntegrationTests.java
+++ b/spring-boot-project/spring-boot-tools/spring-boot-maven-plugin/src/intTest/java/org/springframework/boot/maven/JarIntegrationTests.java
@@ -491,7 +491,7 @@ class JarIntegrationTests extends AbstractArchiveIntegrationTests {
 	void whenJarIsRepackagedWithOutputTimestampConfiguredThenLibrariesAreSorted(MavenBuild mavenBuild) {
 		mavenBuild.project("jar-output-timestamp").execute((project) -> {
 			File repackaged = new File(project, "target/jar-output-timestamp-0.0.1.BUILD-SNAPSHOT.jar");
-			List<String> sortedLibs = Arrays.asList("BOOT-INF/lib/jakarta.servlet-api",
+			List<String> sortedLibs = Arrays.asList("BOOT-INF/lib/jakarta.servlet-api", "BOOT-INF/lib/jspecify",
 					"BOOT-INF/lib/micrometer-commons", "BOOT-INF/lib/micrometer-observation", "BOOT-INF/lib/spring-aop",
 					"BOOT-INF/lib/spring-beans",
 					"BOOT-INF/lib/" + JarModeLibrary.TOOLS.getCoordinates().getArtifactId(),
diff --git a/spring-boot-project/spring-boot-tools/spring-boot-maven-plugin/src/intTest/java/org/springframework/boot/maven/WarIntegrationTests.java b/spring-boot-project/spring-boot-tools/spring-boot-maven-plugin/src/intTest/java/org/springframework/boot/maven/WarIntegrationTests.java
index 1edb33e51c..9ef5f6bfd4 100644
--- a/spring-boot-project/spring-boot-tools/spring-boot-maven-plugin/src/intTest/java/org/springframework/boot/maven/WarIntegrationTests.java
+++ b/spring-boot-project/spring-boot-tools/spring-boot-maven-plugin/src/intTest/java/org/springframework/boot/maven/WarIntegrationTests.java
@@ -123,9 +123,9 @@ class WarIntegrationTests extends AbstractArchiveIntegrationTests {
 			List<String> sortedLibs = Arrays.asList(
 					// these libraries are copied from the original war, sorted when
 					// packaged by Maven
-					"WEB-INF/lib/micrometer-commons", "WEB-INF/lib/micrometer-observation", "WEB-INF/lib/spring-aop",
-					"WEB-INF/lib/spring-beans", "WEB-INF/lib/spring-context", "WEB-INF/lib/spring-core",
-					"WEB-INF/lib/spring-expression", "WEB-INF/lib/spring-jcl",
+					"WEB-INF/lib/jspecify", "WEB-INF/lib/micrometer-commons", "WEB-INF/lib/micrometer-observation",
+					"WEB-INF/lib/spring-aop", "WEB-INF/lib/spring-beans", "WEB-INF/lib/spring-context",
+					"WEB-INF/lib/spring-core", "WEB-INF/lib/spring-expression", "WEB-INF/lib/spring-jcl",
 					// these libraries are contributed by Spring Boot repackaging, and
 					// sorted separately
 					"WEB-INF/lib/" + JarModeLibrary.TOOLS.getCoordinates().getArtifactId());