fix property values using delimiters triggering update flow, even though the property is not changed.
junit for DynamicPropertyUpdater and DynamicUrlConfiguration which doesn't alter the behavior of my change to DynamicPropertyUpdater
fixed junit, since java.nio.file package was missing
Added listener to prove the update property is not triggered even though the property's value with delimiter's is not changed
adding trim to new array
incorporated PR comment to reduce the sleep time and changed to DynamicURLConfiguration config = new DynamicURLConfiguration(0, 500, false, url)
merging to master
Merge remote-tracking branch 'upstream/master' into fix-delimiter-separated-property-update-flow
Merge pull request #191 from vanithadevig/fix-delimiter-separated-property-update-flow

fix property values using delimiters triggering update flow, even though...