Using PeriodFormatterBuilder in rules causing errors. How do I get more descriptive errors?

Setup, Configuration and Use Scripts & Rules
1

Hi, I’m trying to use Joda Time’s PeriodFormatterBuilder in a rule but it keeps giving me an error as soon as I try to instantiate one.

val periodFormatterBuilder = new org.joda.time.format.PeriodFormatterBuilder()

The logs just simply indicate

Rule ‘When dog was last fed’: An error occurred during the script execution: null

I thought maybe the class was not available or someting so I’ve tried installing Joda from maven using

bundle:install
bundle:start

but I still get the same error. Is there any way to get more details around why it’s failing?

2

Have you actually pinned down the error to that particular line?

3

This works in scripted automation using Jython…

from core.log import logging, LOG_PREFIX#, log_traceback
from org.joda.time.format import PeriodFormatterBuilder
from org.joda.time import Period

LOG = logging.getLogger("{}.TEST".format(LOG_PREFIX))

years_and_months = (PeriodFormatterBuilder()
    .printZeroAlways()
    .appendYears()
    .appendSuffix(" year", " years")
    .appendSeparator(" and ")
    .printZeroRarelyLast()
    .appendMonths()
    .appendSuffix(" month", " months")
    .toFormatter())

period_string = years_and_months.print(Period(5, 5, 5, 5, 5, 5, 5, 0))
LOG.warn(period_string)

It logs…

2019-12-22 11:08:35.865 [WARN ] [jsr223.jython.TEST] - 5 years and 5 months
4

Yes, I logged messages before and after this line.