code: public final void setMessageContent(final byte[] content) {
          Utility.assertNotNull("content", content);
  
          this.messageContent = Base64.encode(content);
          this.messageType = QueueMessageType.BASE_64_ENCODED;
      }
docs: Sets the content of the message as a <code>byte</code> array.
  
  @param content
  A <code>byte</code> array which contains the content of the message.