From 09d87fac57c009e4de7a86fc31625ed565306401 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?S=C3=A9bastien=20Deleuze?= <sebastien.deleuze@broadcom.com>
Date: Wed, 30 Oct 2024 14:22:50 +0100
Subject: [PATCH] Annotate RestClient retrieve() with `@CheckReturnValue`

This annotation triggers a warning in IDEs supporting
`@CheckReturnValue` when retrieve() return value is not
used.

Closes gh-33818
---
 .../main/java/org/springframework/web/client/RestClient.java    | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/spring-web/src/main/java/org/springframework/web/client/RestClient.java b/spring-web/src/main/java/org/springframework/web/client/RestClient.java
index f25e3f0c2e4c..1b7016d77e5a 100644
--- a/spring-web/src/main/java/org/springframework/web/client/RestClient.java
+++ b/spring-web/src/main/java/org/springframework/web/client/RestClient.java
@@ -44,6 +44,7 @@
 import org.springframework.http.client.ClientHttpResponse;
 import org.springframework.http.client.observation.ClientRequestObservationConvention;
 import org.springframework.http.converter.HttpMessageConverter;
+import org.springframework.lang.CheckReturnValue;
 import org.springframework.lang.Nullable;
 import org.springframework.util.MultiValueMap;
 import org.springframework.web.util.DefaultUriBuilderFactory;
@@ -644,6 +645,7 @@ interface RequestHeadersSpec<S extends RequestHeadersSpec<S>> {
 		 * {@link ResponseSpec#onStatus(Predicate, ResponseSpec.ErrorHandler) onStatus} handlers.
 		 * @return {@code ResponseSpec} to specify how to decode the body
 		 */
+		@CheckReturnValue
 		ResponseSpec retrieve();
 
 		/**