maxbobse opened a new issue, #5735:
URL: https://github.com/apache/hop/issues/5735
### Apache Hop version?
2.15.0
### Java version?
21.0.3
### Operating system
Windows
### What happened?
I have rebuilt a PDI Transformation that is using the HTTP Post step, While
testing it in Hop, the request always failed with an HTTP 500 error while it
was working fine in PDI.
I have compared how Hop is sending the data to the server compared to PDI
and I think I found the issue: even if 'Post a file' is disabled, Hop is still
sending the file content as Form in the request.
Below a working example from PDI:
```
[26-Sep-2025 12:19:44 Europe/Berlin] Content-Type: application/moca-xml
[26-Sep-2025 12:19:44 Europe/Berlin] Content-Length: 213
[26-Sep-2025 12:19:44 Europe/Berlin] Host: localhost
[26-Sep-2025 12:19:44 Europe/Berlin] Connection: Keep-Alive
[26-Sep-2025 12:19:44 Europe/Berlin] User-Agent: Apache-HttpClient/4.5.9
(Java/21.0.3)
[26-Sep-2025 12:19:44 Europe/Berlin] Accept-Encoding: gzip,deflate
[26-Sep-2025 12:19:44 Europe/Berlin] <moca-request autocommit="True">
<environment>
<var name="USR_ID" value="john.doe"/>
</environment>
<query>login user where usr_id = 'john.doe' and usr_pswd = 'abc'</query>
</moca-request>
```
and here the example from Hop
```
[26-Sep-2025 12:18:50 Europe/Berlin] Content-Type: application/moca-xml
[26-Sep-2025 12:18:50 Europe/Berlin] Content-Length: 443
[26-Sep-2025 12:18:50 Europe/Berlin] Host: localhost
[26-Sep-2025 12:18:50 Europe/Berlin] Connection: Keep-Alive
[26-Sep-2025 12:18:50 Europe/Berlin] User-Agent: Apache-HttpClient/4.5.13
(Java/21.0.3)
[26-Sep-2025 12:18:50 Europe/Berlin] Accept-Encoding: gzip,deflate
[26-Sep-2025 12:18:50 Europe/Berlin] --iYWi_gebOFr9Z0rmQxhzKi84H7l3dhn-fzQ0l
Content-Disposition: form-data; name="file"; filename="login.xml"
Content-Type: application/octet-stream
Content-Transfer-Encoding: binary
<moca-request autocommit="True">
<environment>
<var name="USR_ID" value="john.doe"/>
</environment>
<query>login user where usr_id = 'john.doe' and usr_pswd = 'abc'</query>
</moca-request>
--iYWi_gebOFr9Z0rmQxhzKi84H7l3dhn-fzQ0l--
```
HTTP Post configuration
<img width="656" height="702" alt="Image"
src="https://github.com/user-attachments/assets/340f060f-7ba2-4773-8260-3f95be411639";
/>
### Issue Priority
Priority: 3
### Issue Component
Component: Actions
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