putBlob with zero length Inputstream is failing on google-cloud-storage

org.jclouds.http.HttpResponseException: command: POST https://www.googleapis.com/storage/v1/b/gaul-blobstore3/o/multipart-upload/compose HTTP/1.1 failed with response: HTTP/1.1 400 Bad Request; content: [{
 "error": {
  "errors": [
   {
    "domain": "global",
    "reason": "required",
    "message": "You must provide at least one source component."
   }
  ],
  "code": 400,
  "message": "You must provide at least one source component."
 }
}
]