Cron on Last Day of Month

[japhias (Jan)]

Hi all,

try to add a rule that should run on the last day of the month. Time to hurry
I implemented this:

@when("Time cron 0 55 21 L * ?")

But I get this error

2022-01-31 21:50:49.295 [WARN ] [jsr223.jython.core.triggers ] - when: “Time cron 0 55 21 L * ?” could not be parsed. ‘0 55 21 L * ?’ is not a valid cron expression. See http://www.quartz-scheduler.org/documentation/quartz-2.1.x/tutorials/tutorial-lesson-06.

I’m wondering, because i find this example on the linked website:

0 15 10 L * ?

What is wrong with mine?

[Chiuaua79 (Cor)]

If you add * for the year?

So “0 15 10 L * ? *”

[japhias (Jan)]

Same result:

“Time cron 0 55 21 L * ? *” could not be parsed. ‘0 55 21 L * ? *’ is not a valid cron expression. See http://www.quartz-scheduler.org/documentation/quartz-2.1.x/tutorials/tutorial-lesson-06.

[hafniumzinc (T)]

Strange. Building the same CRON using the UI widget gives this:

[rossko57]

@japhias

[WARN ] [jsr223.jython.core.triggers ]

Looks like its the jython parser that is complaining i.e. its cron template does not include “exotic” quartz syntax?

Workaround - trigger every day, and then see if its the last day of the month.