java.sql.SQLException: ORA-28231: no data passed to obfuscation toolkit ORA-06512: at "SYS.DBMS_OBFUSCATION_TOOLKIT_FFI", line 40 ORA-06512: at "SYS.DBMS_OBFUSCATION_TOOLKIT", line 138 ORA-06512: at "ARKOWNER.ARK_PKG", line 16267