Github user alopresto commented on the issue:
https://github.com/apache/nifi/pull/1375
@pvillard31 I added some logic to handle repeated invocations of the
`customValidate` method and expire the results after 5 invocations even if the
properties had not changed (added unit test demonstrating that if the keystore
file is modified on the filesystem, `customValidate` will incorrectly report
the service is valid as an example).
Please review my changes
[here](https://github.com/apache/nifi/compare/master...alopresto:NIFI-3004) and
provide feedback, potentially incorporating them into your PR if you agree.
Thanks.
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