"java.net.BindException" during building of RESTEasy, if WildFly is running

Maven shouldn't throw java.net.BindException: Address already in use during building of RESTEasy, if WildFly is running and -DskipTests is used.

I need to build RESTEasy on machine, where WildFly is running. I don't need to run tests. It is not possible with this maven command:

mvn clean install  -DskipTests

It is caused by jetty-maven-plugin in example modules. Jetty is started even if -DskipTests option is used:

• https://github.com/resteasy/Resteasy/blob/master/examples/oreilly-jaxrs-2.0-workbook/ex03_1/pom.xml#L86