File Corruption in SharePoint Upload via Microsoft Graph API

Describe the bug

I am using the Microsoft Graph API 5.80.0 to upload files to SharePoint from a Java Spring Boot application. The upload works fine in normal conditions, but some files become corrupted while uploading & so unable to download from SharePoint.

Most of the upload files are smaller than 4 MB, so I am using the simple upload method (PUT request).
The upload process completes successfully (returns 200 OK with a valid file ID). When I receive the webhook for the same the file size is 0 & not able to open the file as the file is corrupted. It happens randomly for a few of the requests.

private fun uploadFile(document: DocumentUploadStream) {
    val timeMillis = System.currentTimeMillis()
    val buildDriveItemRequest : DriveItemRequestBuilder = microsoftGraphClient.drives("driveId").root().itemWithPath(document.path)

    
    if (document.size < 4 * 1024 * 1024) { 
        // Simple upload for small files
        val driveItem = retry {
            refreshToken { 
                buildDriveItemRequest.content().buildRequest()
                    .put(document.contentToStream.readAllBytes()) 
            }
        }
        logger.info { "Upload done ${document.path}, id: ${driveItem?.id}, time: ${(System.currentTimeMillis() - timeMillis)/1000}s" }
        document.id = driveItem?.id
    } else { 
        // Large files use upload sessions (this part is working fine)
    }
}

data class DocumentUploadStream(
        val path: DocumentPath,
        val contentToStream: InputStream,
        val size: Long
)

Expected behavior

The file should not get corrupted on upload.
Any insights or recommendations would be greatly appreciated!
Thanks

How to reproduce

With the attached snippet of code, it should be reproducible randomly.

SDK Version

5.80.0

Latest version known to work for scenario above?

No response

Known Workarounds

No response

Debug output

</details>


### Configuration

_No response_

### Other information

_No response_

Start with the simple-upload branch in the provided uploadFile snippet and review how document.contentToStream is consumed by the Microsoft Graph SDK 5.80.0 call. Reproduce the intermittent case while comparing the source size, uploaded SharePoint size, and webhook timing; done means identifying a reliable cause and a verified correction.