[YouTube-API] Uploadfailed due to internal error, but response code 400?

Hi all,

today someone commited a failed upload with my application.
I received the automatically created logfiles and searched for the error.
Well, the information aren't really useful:

The log shows status code 400 during upload (bad request). (applog.log)

2012-03-05 17:15:01 UploadWorker [WARN] Unexpected return code : 400 while uploading :http://uploads.gdata.youtube.com/resumable/feeds/api/users/default/uploads?upload_id=xxxxxx

At the same time the application is showing an exception (error.log)

com.google.gdata.util.ServiceException: Internal Error
<errors xmlns='http://schemas.google.com/g/2005'><error><domain>GData</domain><code>ServiceException</code><internalReason>Internal Error</internalReason></error></errors>

    at com.google.gdata.client.http.HttpGDataRequest.handleErrorResponse(HttpGDataRequest.java:624)
    at com.google.gdata.client.http.GoogleGDataRequest.handleErrorResponse(GoogleGDataRequest.java:563)
    at com.google.gdata.client.http.HttpGDataRequest.checkResponse(HttpGDataRequest.java:552)
    at com.google.gdata.client.http.HttpGDataRequest.execute(HttpGDataRequest.java:530)
    at com.google.gdata.client.http.GoogleGDataRequest.execute(GoogleGDataRequest.java:535)
    at com.google.gdata.client.Service.insert(Service.java:1409)
    at com.google.gdata.client.GoogleService.insert(GoogleService.java:599)
    at com.google.gdata.client.media.MediaService.insert(MediaService.java:381)
    at org.chaosfisch.youtubeuploader.services.PlaylistServiceImpl.addLatestVideoToPlaylist(PlaylistServiceImpl.java:204)
    at coreplugin.uploader.worker.UploadWorker.background(UploadWorker.java:118)
    at org.chaosfisch.util.BetterSwingWorker.doInBackground(BetterSwingWorker.java:37)
    at org.chaosfisch.util.BetterSwingWorker.doInBackground(BetterSwingWorker.java:32)
    at javax.swing.SwingWorker$1.call(Unknown Source)
    at java.util.concurrent.FutureTask$Sync.innerRun(Unknown Source)
    at java.util.concurrent.FutureTask.run(Unknown Source)
    at javax.swing.SwingWorker.run(Unknown Source)
    at java.util.concurrent.Executors$RunnableAdapter.call(Unknown Source)
    at java.util.concurrent.FutureTask$Sync.innerRun(Unknown Source)
    at java.util.concurrent.FutureTask.run(Unknown Source)
    at java.util.concurrent.ThreadPoolExecutor$Worker.runTask(Unknown Source)
    at java.util.concurrent.ThreadPoolExecutor$Worker.run(Unknown Source)
    at java.lang.Thread.run(Unknown Source)

Sorry but something is definitly going wrong here!!
Refernce Guide + Dev. Guide aren't giving any information to this.

Can someone give me any information on this?
The Upload was at ca 98% when receiving this exception.

Regards,

Dennis Fischer

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