Log4j 2 is a successful project because of the large and diverse community that contributes to it.
There are a handful of tools that developers in the community use; some are open-source and some are commercial. We'd like to extend a special thanks to these communities/companies:
The Apache Software Foundation receives many smaller donations from individuals via our PayPal and Amazon Payments services (details here ).
We would like to thank all of our individual donors for their support of our work, and for their willingness to contribute with only this as recognition for their generosity.