Make HttpComponentsHeadersAdapter#getFirst nullable

Backport of spring-projectsgh-30267 Closes spring-projectsgh-30269
sdeleuze · Apr 3, 2023 · e931fdc · e931fdc
1 parent 3a16813
commit e931fdc
Showing 1 changed file with 2 additions and 1 deletion.
diff --git a/.../src/main/java/org/springframework/http/client/reactive/HttpComponentsHeadersAdapter.java b/.../src/main/java/org/springframework/http/client/reactive/HttpComponentsHeadersAdapter.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2002-2020 the original author or authors.
+ * Copyright 2002-2023 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.
@@ -53,6 +53,7 @@ class HttpComponentsHeadersAdapter implements MultiValueMap<String, String> {
 
 
 	@Override
+	@Nullable
 	public String getFirst(String key) {
 		Header header = this.message.getFirstHeader(key);
 		return (header != null ? header.getValue() : null);