Spring Cloud Openfeign produces application/octet-stream Io error help

Describe the bug Please provide details of the problem, including the version of Spring Cloud that you are using.

 @GetMapping(value = ApiConst.UpcController.downloadTemplate.PATH,
            consumes = MediaType.APPLICATION_FORM_URLENCODED_VALUE,
            produces = MediaType.APPLICATION_OCTET_STREAM_VALUE)
    ResponseEntity<StreamingResponseBody> downloadTemplate()

error here

    @SuppressWarnings("ConstantConditions")
    public boolean hasEmptyMessageBody() throws IOException {
        InputStream body = this.response.getBody();
        // Per contract body shouldn't be null, but check anyway..
        if (body == null) {
            return true;
        }
        if (body.markSupported()) {
            body.mark(1);
            if (body.read() == -1) {
                return true;
            }
            else {
                body.reset();
                return false;
            }
        }
        else {
            this.pushbackInputStream = new PushbackInputStream(body);
            int b = this.pushbackInputStream.read();
            if (b == -1) {
                return true;
            }
            else {
                this.pushbackInputStream.unread(b);
                return false;
            }
        }
    }

this.pushbackInputStream.read() Method threw 'java.io.IOException' exception. stream is closed

why ? feign is not spport produces application/octet-stream ?

Comment From: OlgaMaciaszek

Hello @lnsane, please provide a minimal, complete, verifiable example that reproduces the issue.

Comment From: spring-cloud-issues

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Comment From: spring-cloud-issues

Closing due to lack of requested feedback. If you would like us to look at this issue, please provide the requested information and we will re-open the issue.