The work in org.xbib.event.async is based upon the work in

https://github.com/javasync/RxIo

and org.xbib.event.yield is based upon the work in

https://github.com/tinyield/jayield

by Fernando Miguel Gamboa de Carvalho (fmcarvalho)

branched as of 23 December, 2021

License: Apache 2.0

The work in org.xbib.event.bus is taken from Guava

https://github.com/google/guava

as of 27 August, 2022

License: Apache 2.0