Dear Colleagues,

We are using Pega v. PRPC-8.8.3-478

We experience weird behaviour of the ootb Pega function (differenceBetweenDays_080101, wiith the local business calendar) during start up. Please find our logs attachted.

The exception looks like that:

java.lang.ArrayIndexOutOfBoundsException: Index 4747 out of bounds for length 3287 ... com.pegarules.generated.testgen.Rule_Decision_DDF_Data_Decision_Request_Customer_DF_ProcessOffer_Action_20220309T160319_477_GMT$12$1.onNext(Rule_Decision_DDF_Data_Decision_Request_Customer_DF_ProcessOffer_Action_20220309T160319_477_GMT.java:680) ~[?:?] ... 2024-02-01 12:04:28,741 [st], Partitions=[33]] [  STANDARD] [                    ] [                    ] (ed.pega_rules_businesscalendar) FATAL    -  The business calendar object could not be found  2024-02-01 12:04:28,741 [st], Partitions=[55]] [  STANDARD] [                    ] [                    ] (ed.pega_rules_businesscalendar) FATAL    -  The business calendar object could not be found  2024-02-01 12:04:28,741 [st], Partitions=[19]] [  STANDARD] [                    ] [                    ] (ed.pega_rules_businesscalendar) FATAL    -  The business calendar object could not be found  2024-02-01 12:04:28,741 [st], Partitions=[17]] [  STANDARD] [                    ] [                    ] (ed.pega_rules_businesscalendar) FATAL    -  The business calendar object could not be found  2024-02-01 12:04:28,741 [nst], Partitions=[3]] [  STANDARD] [                    ] [                    ] (ed.pega_rules_businesscalendar) FATAL    -  The business calendar object could not be found  2024-02-01 12:04:28,745 [st], Partitions=[19]] [  STANDARD] [                    ] [                    ] (sinessCalendar.CalendarUtility) ERROR    - Error occured in loading business calendar

I've checked similar topics on pdn

1. Pega 8.5.5. (INC-178923) https://support.pega.com/support-doc/pega-platform-855-patch-resolved-issues?

2. Pega 8.7. (INC-178923) https://support.pega.com/support-doc/pega-platform-87-resolved-issues

3. Pega 8.8.3. (INC-264237) https://support.pega.com/support-doc/pega-platform-883-patch-resolved-issues

However, I'm not sure if they have the same root cause than our problem or differen one.

Another difficulty is that we don't have the same exception on any other environment than PROD.

I'm looking forward to any information or support on this problem.

Best Regards,

Dmitry