Cause: The CREATE_QUEUE or ALTER_QUEUE command was issued with a non-zero RETRY_DELAY and a QUEUE_TABLE that was created for multiple consumers and with COMPATIBLE parameter set to '8.0'. See the solution below.
Error solution: Either set the RETRY_DELAY to zero or upgrade the queue table to 8.1 compatible using the DBMS_AQADM.MIGRATE_QUEUE_TABLE procedure.
Database version: Oracle 11g Release 2 (11.2)