Modify Parameter Annotation	@QueryParam(PutOpParam.NAME) to @QueryParam(PostOpParam.NAME) in parameter op : PostOpParam in method public post(in InputStream, ugi UserGroupInformation, delegation DelegationParam, path UriFsPathParam, op PostOpParam, bufferSize BufferSizeParam) : Response from class org.apache.hadoop.hdfs.server.datanode.web.resources.DatanodeWebHdfsMethods