ORA-27378: cannot stop jobs of type EXECUTABLE on this platform
Cause : An attempt was made to stop a job of type EXECUTABLE on a platform where the stop operation was not supported.
Action - How to fix it : DBA Scripts :: www.high-oracle.com/scripts
If the attempt to stop the job was made with the FORCE option set to FALSE, try again but change the FORCE option to TRUE.
Well, the reason for above error is that i have taken the above script from a 11g database and running it on 10g database. 11g has bring some changes in password management. Below code is executed on 11g and user created successfully, which is expected result.