Enable the Deprecation Warnings

ALTER SESSION SET PLSQL_WARNINGS='ENABLE:(6019,6020,6021,6022)'

CREATE OR REPLACE PROCEDURE bar 
IS 
BEGIN 
   PRAGMA DEPRECATE(bar); 
   DBMS_OUTPUT.PUT_LINE('Executing bar.'); 
END; 

CREATE OR REPLACE PROCEDURE bar  
IS  
   PRAGMA DEPRECATE(bar);  
BEGIN  
   DBMS_OUTPUT.PUT_LINE('Executing bar.');  
END;

CREATE OR REPLACE PACKAGE pkg17   
IS   
  PRAGMA DEPRECATE ("pkg17");   
END pkg17;