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https://issues.apache.org/jira/browse/CXF-8544?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17359294#comment-17359294
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Timothy James Ward commented on CXF-8544:
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The problem seems to come from the SseInterceptor
[https://github.com/apache/cxf/blob/fe96f67d273680c711b940a9ac4c6a369243a5c5/rt/rs/sse/src/main/java/org/apache/cxf/jaxrs/sse/interceptor/SseInterceptor.java#L76-L84|https://github.com/apache/cxf/blob/fe96f67d273680c711b940a9ac4c6a369243a5c5/rt/rs/sse/src/main/java/org/apache/cxf/jaxrs/sse/interceptor/SseInterceptor.java#L76-L84]
- these lines copy the *request* headers into the response. As my request has
a` Content-Length` of `2` (from the POST body) this limits my response to two
characters!
> SseEventSink cannot be used in a @POST resource method
> ------------------------------------------------------
>
> Key: CXF-8544
> URL: https://issues.apache.org/jira/browse/CXF-8544
> Project: CXF
> Issue Type: Bug
> Components: JAX-RS
> Affects Versions: 3.2.14
> Reporter: Timothy James Ward
> Assignee: Andriy Redko
> Priority: Major
>
> It is possible (and legal according to the JAX-RS specification) to inject a
> SseEventSink into a resource method annotated with @POST. This works, but the
> Server Sent Event stream gets automatically closed after the first event is
> sent. This prevents any @POST resource method from sending Server Sent Events
> using the API.
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