While setting up a Master/Detail DA, an incorrect column name was in the list
After recovering from the hair-raising error message
ORA-30625: method dispatch on NULL SELF argument is disallowedORA-06512: at "FOEX_020200.FX_P_MASTER_DETAIL", line 382 ORA-06512: at "FOEX_020200.FX_P_FORM_DML", line 922 ORA-06512: at "FOEX_020200.FX_P_FORM_DML", line 2503 ORA-06512: at "FOEX_020200.FX_P_FORM_DML", line 6094 ORA-06512: at "FOEX_020200.FX_P_FORM_DML", line 6203 ORA-06512: at "FOEX_020200.FX_P_FORM", line 5090
We quickly identified the issue, but a friendly error message would be nice.