Thanks for reporting.

which groovy and codenarc dependencies / versions are you using in your build?

It will be this change: [1]http://www.gradle.org/docs/release-ca...

Most likely cause is that you are using a transform (perhaps even implicitly) that is doing the wrong thing and trying to load classes.

Would you be able to provide the complete stacktrace (will need to run with `-S`, not `-s`)?. Also, if you can provide a reproducible sample that would be even better.

Thanks for your reliable testing of the RCs once more.
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[1] http://www.gradle.org/docs/release-candidate/release-notes#codenarc-plugin-groovy-version-changes

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I can't reproduce the issue anymore with Gradle 3.3.