cargo-maven2-plugin setting the container id wildfly8x and offset other than 0 do not start the web container Undertow properly - It starts with doubled offset given.
For example if defined 1 then it starts with port 8082. If offset defined 100 it will be started with port 8280.
It also can be seen in INFO log outputs.
but later starting container:
also the admin gui is rechable under the wrong port.