The column exception_msg_ in table act_ru_deadletter_job gets truncated at 255 characters but the max length of this column is 4000.
I have done this SQL request to verify this :
select exception_msg_, length(exception_msg_) from act_ru_deadletter_job where length(exception_msg_) = (select max(length(exception_msg_)) from act_ru_deadletter_job)
I get for each line the length of 255…So I suppose it is truncated somewhere in the code before being persisted.
Do you have any idea where we can configure this ?