Except as otherwise provided in the second paragraph hereof, every pleading subsequent to the original petition shall be served on the adverse party as provided by Article 1313 or 1314, whichever is applicable.

No service on the adverse party need be made of a motion or petition for an appeal, of a petition for the examination of a judgment debtor, of a petition for the issuance of garnishment interrogatories in the execution of a final judgment, or of any pleading not required by law to be in writing.