The following open source projects are referenced by Core Config Watcher:

Consul Client (Apache 2.0) - https://github.com/OrbitzWorldwide/consul-client
https://github.com/OrbitzWorldwide/consul-client/blob/master/LICENSE

HttpClient (Apache 2.0) - https://hc.apache.org/httpcomponents-client-4.5.x/index.html
https://hc.apache.org/httpcomponents-client-4.5.x/license.html

Apache Commons Logging (Apache 2.0) - https://commons.apache.org/proper/commons-logging/
https://commons.apache.org/proper/commons-logging/