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Do not send Cookie header in reactive JdkClientHttpRequest if no cookies added #32799

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Do not send Cookie header in reactive JdkClientHttpRequest if no cookies added #32799

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8 changes: 6 additions & 2 deletions spring-web/src/main/java/org/springframework/http/client/reactive/JdkClientHttpRequest.java
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Original file line number Diff line number Diff line change
Expand Up @@ -37,6 +37,7 @@
import org.springframework.http.HttpHeaders;
import org.springframework.http.HttpMethod;
import org.springframework.util.Assert;
import org.springframework.util.MultiValueMap;

/**
* {@link ClientHttpRequest} for the Java {@link HttpClient}.
Expand Down Expand Up @@ -108,8 +109,11 @@ protected void applyHeaders() {

@Override
protected void applyCookies() {
this.builder.header(HttpHeaders.COOKIE, getCookies().values().stream()
.flatMap(List::stream).map(HttpCookie::toString).collect(Collectors.joining(";")));
MultiValueMap<String, HttpCookie> cookies = getCookies();
if (!cookies.isEmpty()) {
this.builder.header(HttpHeaders.COOKIE, cookies.values().stream()
.flatMap(List::stream).map(HttpCookie::toString).collect(Collectors.joining(";")));
}
}

@Override
Expand Down