Cybersecurity firm LunaSec noted that the zero-day was tweeted on Dec. 9 along with a proof-of-concept exploit on GitHub. LunaSec noted that Java versions created 6u211, 7u201, 8u191, and 11.0.1 ...

Systems and services that use the Java logging library, Apache Log4j between versions 2.0 and 2.14.1 are all affected, including many services and applications written in Java.

I'm purely a Java guy, and we'll eventually get to a pure Java library, but in the meantime I'd like to test using something like JNA. I'm wanting to keep this under a linux environment.