14. Builders' and Mechanics' Liens.—
These may arise upon a ship under the provision of local statutes and be entirely enforceable so long as they do not come into conflict with maritime liens and the exclusive jurisdiction of the admiralty. So, also, a lienor may assert his common-law right to retain possession of the ship until payment is made. This depends entirely on possession and cannot be enforced by judicial proceedings, although it may be recognized by the court when it arrests the vessel on other accounts.