Chris,
Thank you for your reply.
I tried the test procedure without "exec"
but got the following error and attributed
it to the fact that without "exec" ut
thinks it's a function and not procedure.

here is what i get without "exec":

FAILURE - Unable to run ut_pmu.UT_MAIN: ORA-06550: line 1, column 7:
PLS-00201:
identifier 'PMU.MAIN' must be declared
ORA-06550: line 1, column 7:
PL/SQL: Statement ignored
ORA-06550: line 4, column 22:
PLS-00201: identifier 'INVALID_MODE'
must be declared
ORA-06550: line 0, column 0:
PL/SQL: Compilation unit analysis
terminated

The same PL/SQL error but different interpretation by utplsql i think.

what do you think?

Alex