Please reconsider #235 as it is required for jdk11 support.

Expected behavior

https://twitter.github.io/finagle/guide/changelog.html mentions initial jdk11 support for 19.11.0 onwards. Hence I expect jdk11 support.

Actual behavior

As far as I can tell issue #235 has not yet been fixed. It results in warnings in jdk11.

Steps to reproduce the behavior

See issue #235 for this.