Section 1944. Hearing and final order upon non-appearance of adverse claimants

Upon the return day named in  said  notice  the  court  shall
  proceed  summarily to inquire into the truth of the matters set forth in
  the petition, and may appoint a referee for that purpose, and  if  there
  shall  be  no  appearance by any person claiming any adverse interest to
  the petitioners in the real property  described  in  the  petition,  the
  court  may make a final order declaring that the title of the petitioner
  to such real property  has  been  judicially  established,  which  final
  order, together with the petition and order for and proof of publication
  of the notice, and the proofs taken before the court or referee shall be
  filed  in  the  office  of  the  clerk  of  the county in which the real
  property is situated, and such final order  shall  be  evidence  of  the
  facts  so  declared  to be established thereby in all courts and places,
  and thereafter no action or proceeding for  the  recovery  of  the  real
  property  described  in  said final order or any part thereof, or of any
  interest therein, shall be maintained by any person named as a defendant
  in the notice of pendency of action referred to in section 1941,  or  by
  any person or persons claiming under such defendant or either of them.