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Cron expression validation method in CronSequenceGenerator improved [SPR-15604] #20163
This method validated only fields length of the given expression, not the validity of cron expression. It seems logical that the method with name 'isValidExpression' would validate cron as well.
Juergen Hoeller commented
Thanks for raising this! I've implemented this in a slightly different fashion, doing some basic validation upfront and then using a custom