diff --git a/spring-web/src/test/java/org/springframework/web/client/support/RestClientAdapterTests.java b/spring-web/src/test/java/org/springframework/web/client/support/RestClientAdapterTests.java
index 4abb8defbd4..809bbbb227b 100644
--- a/spring-web/src/test/java/org/springframework/web/client/support/RestClientAdapterTests.java
+++ b/spring-web/src/test/java/org/springframework/web/client/support/RestClientAdapterTests.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2002-2024 the original author or authors.
+ * Copyright 2002-2025 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.
@@ -91,38 +91,39 @@ class RestClientAdapterTests {
 
 	public static Stream<Object[]> arguments() {
 		return Stream.of(
-				args((url, observationRegistry) -> {
-					RestClient restClient = RestClient.builder().baseUrl(url).observationRegistry(observationRegistry).build();
+				createArgsForAdapter((url, or) -> {
+					RestClient restClient = RestClient.builder().baseUrl(url).observationRegistry(or).build();
 					return RestClientAdapter.create(restClient);
 				}),
-				args((url, observationRegistry) -> {
+				createArgsForAdapter((url, or) -> {
 					RestTemplate restTemplate = new RestTemplate();
-					restTemplate.setObservationRegistry(observationRegistry);
+					restTemplate.setObservationRegistry(or);
 					restTemplate.setUriTemplateHandler(new DefaultUriBuilderFactory(url));
 					return RestTemplateAdapter.create(restTemplate);
 				}));
 	}
 
 	@SuppressWarnings("resource")
-	private static Object[] args(BiFunction<String, TestObservationRegistry, HttpExchangeAdapter> adapterFactory) {
+	private static Object[] createArgsForAdapter(
+			BiFunction<String, TestObservationRegistry, HttpExchangeAdapter> adapterFactory) {
+
 		MockWebServer server = new MockWebServer();
 
 		MockResponse response = new MockResponse();
 		response.setHeader("Content-Type", "text/plain").setBody("Hello Spring!");
 		server.enqueue(response);
 
-		TestObservationRegistry observationRegistry = TestObservationRegistry.create();
+		TestObservationRegistry registry = TestObservationRegistry.create();
 
-		HttpExchangeAdapter adapter = adapterFactory.apply(server.url("/").toString(), observationRegistry);
+		HttpExchangeAdapter adapter = adapterFactory.apply(server.url("/").toString(), registry);
 		Service service = HttpServiceProxyFactory.builderFor(adapter).build().createClient(Service.class);
 
-		return new Object[] { server, service, observationRegistry };
+		return new Object[] { server, service, registry };
 	}
 
 
 	@ParameterizedAdapterTest
-	void greeting(
-			MockWebServer server, Service service, TestObservationRegistry observationRegistry) throws Exception {
+	void greeting(MockWebServer server, Service service, TestObservationRegistry registry) throws Exception {
 
 		String response = service.getGreeting();
 
@@ -130,13 +131,12 @@ class RestClientAdapterTests {
 		assertThat(response).isEqualTo("Hello Spring!");
 		assertThat(request.getMethod()).isEqualTo("GET");
 		assertThat(request.getPath()).isEqualTo("/greeting");
-		assertThat(observationRegistry).hasObservationWithNameEqualTo("http.client.requests").that()
+		assertThat(registry).hasObservationWithNameEqualTo("http.client.requests").that()
 				.hasLowCardinalityKeyValue("uri", "/greeting");
 	}
 
 	@ParameterizedAdapterTest
-	void greetingById(
-			MockWebServer server, Service service, TestObservationRegistry observationRegistry) throws Exception {
+	void greetingById(MockWebServer server, Service service, TestObservationRegistry registry) throws Exception {
 
 		ResponseEntity<String> response = service.getGreetingById("456");
 
@@ -145,13 +145,12 @@ class RestClientAdapterTests {
 		assertThat(response.getBody()).isEqualTo("Hello Spring!");
 		assertThat(request.getMethod()).isEqualTo("GET");
 		assertThat(request.getPath()).isEqualTo("/greeting/456");
-		assertThat(observationRegistry).hasObservationWithNameEqualTo("http.client.requests").that()
+		assertThat(registry).hasObservationWithNameEqualTo("http.client.requests").that()
 				.hasLowCardinalityKeyValue("uri", "/greeting/{id}");
 	}
 
 	@ParameterizedAdapterTest
-	void greetingWithDynamicUri(
-			MockWebServer server, Service service, TestObservationRegistry observationRegistry) throws Exception {
+	void greetingWithDynamicUri(MockWebServer server, Service service, TestObservationRegistry registry) throws Exception {
 
 		URI dynamicUri = server.url("/greeting/123").uri();
 		Optional<String> response = service.getGreetingWithDynamicUri(dynamicUri, "456");
@@ -160,7 +159,7 @@ class RestClientAdapterTests {
 		assertThat(response.orElse("empty")).isEqualTo("Hello Spring!");
 		assertThat(request.getMethod()).isEqualTo("GET");
 		assertThat(request.getRequestUrl().uri()).isEqualTo(dynamicUri);
-		assertThat(observationRegistry).hasObservationWithNameEqualTo("http.client.requests").that()
+		assertThat(registry).hasObservationWithNameEqualTo("http.client.requests").that()
 				.hasLowCardinalityKeyValue("uri", "none");
 	}
 
@@ -308,8 +307,8 @@ class RestClientAdapterTests {
 		ResponseEntity<String> getWithUriBuilderFactory(UriBuilderFactory uriBuilderFactory);
 
 		@GetExchange("/greeting/{id}")
-		ResponseEntity<String> getWithUriBuilderFactory(UriBuilderFactory uriBuilderFactory,
-				@PathVariable String id, @RequestParam String param);
+		ResponseEntity<String> getWithUriBuilderFactory(
+				UriBuilderFactory uriBuilderFactory, @PathVariable String id, @RequestParam String param);
 
 		@GetExchange("/greeting")
 		ResponseEntity<String> getWithIgnoredUriBuilderFactory(URI uri, UriBuilderFactory uriBuilderFactory);
diff --git a/spring-webflux/src/test/java/org/springframework/web/reactive/function/client/support/WebClientAdapterTests.java b/spring-webflux/src/test/java/org/springframework/web/reactive/function/client/support/WebClientAdapterTests.java
index 9579267f94f..b5661a49b84 100644
--- a/spring-webflux/src/test/java/org/springframework/web/reactive/function/client/support/WebClientAdapterTests.java
+++ b/spring-webflux/src/test/java/org/springframework/web/reactive/function/client/support/WebClientAdapterTests.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2002-2024 the original author or authors.
+ * Copyright 2002-2025 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.
@@ -90,8 +90,7 @@ class WebClientAdapterTests {
 
 	@Test
 	void greeting() {
-		prepareResponse(response ->
-				response.setHeader("Content-Type", "text/plain").setBody("Hello Spring!"));
+		prepareResponse(response -> response.setHeader("Content-Type", "text/plain").setBody("Hello Spring!"));
 
 		StepVerifier.create(initService().getGreeting())
 				.expectNext("Hello Spring!")
@@ -111,8 +110,7 @@ class WebClientAdapterTests {
 				})
 				.build();
 
-		prepareResponse(response ->
-				response.setHeader("Content-Type", "text/plain").setBody("Hello Spring!"));
+		prepareResponse(response -> response.setHeader("Content-Type", "text/plain").setBody("Hello Spring!"));
 
 		StepVerifier.create(initService(webClient).getGreetingWithAttribute("myAttributeValue"))
 				.expectNext("Hello Spring!")
@@ -154,8 +152,8 @@ class WebClientAdapterTests {
 		prepareResponse(response -> response.setResponseCode(201));
 		String fileName = "testFileName";
 		String originalFileName = "originalTestFileName";
-		MultipartFile file = new MockMultipartFile(fileName, originalFileName,
-				MediaType.APPLICATION_JSON_VALUE, "test".getBytes());
+		MultipartFile file = new MockMultipartFile(
+				fileName, originalFileName, MediaType.APPLICATION_JSON_VALUE, "test".getBytes());
 
 		initService().postMultipart(file, "test2");
 
@@ -255,12 +253,11 @@ class WebClientAdapterTests {
 		String getWithUriBuilderFactory(UriBuilderFactory uriBuilderFactory);
 
 		@GetExchange("/greeting/{id}")
-		String getWithUriBuilderFactory(UriBuilderFactory uriBuilderFactory,
-				@PathVariable String id, @RequestParam String param);
+		String getWithUriBuilderFactory(
+				UriBuilderFactory uriBuilderFactory, @PathVariable String id, @RequestParam String param);
 
 		@GetExchange("/greeting")
 		String getWithIgnoredUriBuilderFactory(URI uri, UriBuilderFactory uriBuilderFactory);
-
 	}
 
 }