I have installed utPLSQL on a PaaS ATP database which is 19c Enterprise Edition Version 19.5.0.0.0. I tried to validate installation by creating package test_betwnstr and calling exec ut.run but here I get this exception.

I added a commit at line#91 of the package UT_ANNOTATION_CACHE_MANAGER, which resolved the error, but the run is taking forever.FYI- My installation is without DDL trigger and I do not have many custom objects in schema.

ORA-06512: at "UT3.UT_ANNOTATION_CACHE_MANAGER", line 91
ORA-06512: at "UT3.UT_ANNOTATION_MANAGER", line 201
ORA-06512: at "UT3.UT_ANNOTATION_MANAGER", line 311
ORA-06512: at "UT3.UT_SUITE_MANAGER", line 431
ORA-06512: at "UT3.UT_SUITE_MANAGER", line 505
ORA-06512: at "UT3.UT_RUNNER", line 150

ORA-12838: cannot read/modify an object after modifying it in parallel
ORA-06512: at "UT3.UT_ANNOTATION_CACHE_MANAGER", line 91
ORA-06512: at "UT3.UT_ANNOTATION_MANAGER", line 201
ORA-06512: at "UT3.UT_ANNOTATION_MANAGER", line 311
ORA-06512: at "UT3.UT_SUITE_MANAGER", line 431
ORA-06512: at "UT3.UT_SUITE_MANAGER", line 505

Error starting at line : 8 in command -
begin ut.run(); end;
Error report -
ORA-12838: cannot read/modify an object after modifying it in parallel
ORA-06512: at "UT3.UT_RUNNER", line 180
ORA-06512: at "UT3.UT_ANNOTATION_CACHE_MANAGER", line 91
ORA-06512: at "UT3.UT_ANNOTATION_MANAGER", line 201
ORA-06512: at "UT3.UT_ANNOTATION_MANAGER", line 311
ORA-06512: at "UT3.UT_SUITE_MANAGER", line 431
ORA-06512: at "UT3.UT_SUITE_MANAGER", line 505
ORA-06512: at "UT3.UT_RUNNER", line 150
ORA-06512: at "UT3.UT", line 134
ORA-06512: at "UT3.UT", line 488
ORA-06512: at "UT3.UT", line 558
ORA-06512: at line 1
12838. 00000 - "cannot read/modify an object after modifying it in parallel"
*Cause: Within the same transaction, an attempt was made to add read or
modification statements on a table after it had been modified in parallel
or with direct load. This is not permitted.
*Action: Rewrite the transaction, or break it up into two transactions
one containing the initial modification and the second containing the
parallel modification operation.