Create Page in OneNote using Java SDK v6.x

My current app successfully creates pages in OneNote using the Java SDK 5.x. I am looking to update to the latest Java SDK 6.x (in the process of also adding support for OneDrive).

I have read through the Microsoft Graph Java SDK v6 Changelog and Upgrade Guide and am obtaining valid tokens. I can't find, however, any documentation or examples of how to create a page in OneNote using the Java SDK 6.x. The article Create onenotePage provides examples for HTTP, CLI, and JavaScript, but is missing the examples for C#, Go, Java, etc. provided for other actions such as Create notebook.

Is it possible to create pages using the Java SDK 6.x? Are there any examples?

I have tried the Kotlin code below in the absence of documentation, but always receive the error "The multi-part payload was malformed". Debugging by enabling okhttp logging leads me to believe that this approach results in posting a serialized version of the OnenotePage object rather than the contents field as required. (I didn't provide my initialization for 'contents' as the whole approach seems invalid.)

val mypage = OnenotePage()
mypage.content = content

mGraphClient!!.me().onenote()
    .pages()
    .withUrl("https://graph.microsoft.com/v1.0/me/onenote/pages?sectionName=MySection")
    .post(mypage) { requestConfiguration ->
        requestConfiguration.headers.add(
            "content-type",
            "multipart/form-data; boundary=MyBoundary1234"
        )
    }

Bắt đầu với Microsoft Graph Java SDK v6 Upgrade Guide và bài viết OneNote create-page được liên kết trong issue, sau đó so sánh các mẫu yêu cầu có sẵn của Java SDK với các ví dụ HTTP và JavaScript hiện có. Xác nhận dạng yêu cầu multipart được hỗ trợ và ghi lại một ví dụ Java 6.x hoạt động, bao gồm nội dung yêu cầu dự kiến và một bước kiểm tra hoàn tất rõ ràng.