ORA-22314: method information mismatch in ALTER TYPE
Cause : The number of methods or the method signature do not match that of the original type declaration. This is not supported.
Action - How to fix it : DBA Scripts :: www.high-oracle.com/scripts
Make sure the method signature stay identical for the previously declared method. Do not drop existing methods.
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.