Rem create.sql
connect &1/&2

create or replace package empbyval as 
  function getempinfo (empno in number) return long raw;
  procedure updateempinfo (info long raw);
end;
/

show errors

create or replace package body empbyval as 
  function getempinfo (empno in number) return long raw 
    as language java name 
       'EmployeeByValue.getEmployeeInfo (java.lang.Integer) return byte[]';
  procedure updateempinfo (info long raw)
    as language java name 
       'EmployeeByValue.updateEmployeeInfo (byte[])';
end;
/

show errors
exit