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Changes
Removes the dependency on Apache commons-io.
IQ Server reports a vulnerability in commons-io relating to https://issues.apache.org/jira/browse/IO-559
Initially I was going to send a PR with a version bump similar to #26
However in checking whether the jwks-rsa library used the affected class from commons-io I noticed that the library doesn't appear to use commons-io at all. The build and test passes when removing the dependency so I figured it would be worth contributing that removal to avoid unnecessary dependencies and churn based on vulns or other issues with the dependency.
If I am wrong and this dependency is needed I can happily contribute a version bump instead.
References
https://issues.apache.org/jira/browse/IO-559
#26
Testing
I am unsure what testing other than the existing build and test is needed by maintainers to validate this change.
Checklist