An ORA-08102 indicates that there is a mismatch between the key(s) stored in
the index and the values stored in the table.

Table involved is: sys.job$
Index is: I_JOB_NEXT
I_JOB_NEXT on JOB$ (NEXT_DATE)

SQL> ANALYZE TABLE job$ VALIDATE STRUCTURE CASCADE;

ANALYZE TABLE job$ VALIDATE STRUCTURE CASCADE

ORA-00054: resource busy and acquire with NOWAIT specified

What now?
-D