Check if a file exists every 5 seconds in Spring?

What was the good and simple practice in Spring when you want to periodically check for a flag file in a certain directory? i.e. if there is that flag file, pause for 5 seconds and check again; If there is no flag file, then proceed to next step. I think we could use Thread.sleep or Timer, but still want to get some expert answer on any simple solution. Thanks!
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ksivananthConnect With a Mentor Commented:
timer seems good option!
Sathish David Kumar NConnect With a Mentor ArchitectCommented:
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