Cannot send study with STOW-RS.

[AlexZaka]

Describe the bug. What happened?

Cannot upload study with STOW-RS. HTTP response code 415. Upload with C-GET works fine.

What version of Weasis are you running?

4.7.0

On which system the problem occurs?

Linux

Relevant log output

04.06.2026 23:04:03.446 *ERROR* [DicomSend-1] org.weasis.dicom.send.StowRS: STOW-RS: error when posting datajava.io.IOException: HTTP request failed with status code: 415
	at org.weasis.core.api.net.HttpUtils.validateResponseStatus(HttpUtils.java:309)
	at org.weasis.core.api.net.HttpUtils.createHttpRequest(HttpUtils.java:198)
	at org.weasis.core.api.net.HttpUtils.getHttpResponse(HttpUtils.java:157)

Additional contextual elements

No response