A simple UPnP library for Java

You can download upnp4j from my maven repo: https://maven.pkg.github.com/cyberflamego/upnp4j under the group me.notom3ga, artifact upnp4j and version 1.0. (Added my gh packages repo (with permission, see below) as the original one went down)

To open port 25565 with TCP use:

UPnP4J.open(25565, Protocol.TCP);

upnp4j is a continuation of WaifUPnP, which is licensed under LGPL 2.1.