code: public void uploadFromByteArray(final byte[] buffer, final int offset, final int length,
              final AccessCondition accessCondition, FileRequestOptions options, OperationContext opContext)
              throws StorageException, IOException, URISyntaxException {
          ByteArrayInputStream inputStream = new ByteArrayInputStream(buffer, offset, length);
          this.upload(inputStream, length, accessCondition, options, opContext);
          inputStream.close();
      }
docs: Uploads a file from data in a byte array. If the file already exists on the service, it will be overwritten.
  
  @param buffer
  A <code>byte</code> array which represents the data to write to the file.
  @param offset
  A <code>int</code> which represents the offset of the byte array from which to start the data upload.
  @param length
  An <code>int</code> which represents the number of bytes to upload from the input buffer.
  @param accessCondition
  An {@link AccessCondition} object that represents the access conditions for the file.
  @param options
  A {@link FileRequestOptions} object that specifies any additional options for the request. Specifying
  <code>null</code> will use the default request options from the associated service client (
  {@link CloudFileClient}).
  @param opContext
  An {@link OperationContext} object that represents the context for the current operation. This object
  is used to track requests to the storage service, and to provide additional runtime information about
  the operation.
  
  @throws StorageException
  If a storage service error occurred.
  @throws IOException
  @throws URISyntaxException