Wildfly 9 address already in use

I created a new webapp in netbeans and tried to deploy it to wildfly 9.0.0 CR2. I always get this error:

18:02:54,246 ERROR [org.jboss.msc.service.fail] (MSC service thread 1-7) MSC000001: Failed to start service jboss.undertow.listener.default: org.jboss.msc.service.StartException in service jboss.undertow.listener.default: Could not start http listener
    at org.wildfly.extension.undertow.ListenerService.start(ListenerService.java:150)
    at org.jboss.msc.service.ServiceControllerImpl$StartTask.startService(ServiceControllerImpl.java:1948)
    at org.jboss.msc.service.ServiceControllerImpl$StartTask.run(ServiceControllerImpl.java:1881)
    at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1145)
    at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:615)
    at java.lang.Thread.run(Thread.java:744)
Caused by: java.net.BindException: Address already in use
    at sun.nio.ch.Net.bind0(Native Method)
    at sun.nio.ch.Net.bind(Net.java:444)
    at sun.nio.ch.Net.bind(Net.java:436)
    at sun.nio.ch.ServerSocketChannelImpl.bind(ServerSocketChannelImpl.java:214)
    at sun.nio.ch.ServerSocketAdaptor.bind(ServerSocketAdaptor.java:74)
    at sun.nio.ch.ServerSocketAdaptor.bind(ServerSocketAdaptor.java:67)
    at org.xnio.nio.NioXnioWorker.createTcpConnectionServer(NioXnioWorker.java:182)
    at org.xnio.XnioWorker.createStreamConnectionServer(XnioWorker.java:243)
    at org.wildfly.extension.undertow.HttpListenerService.startListening(HttpListenerService.java:115)
    at org.wildfly.extension.undertow.ListenerService.start(ListenerService.java:147)
    ... 5 more

when i check the used ports i see that wildfly uses this ports: 8080,3528,3529,9990. For me it seems like wildfly is blocking itself? Anybody an idea?