Multiple problems running Warp on WildFly 8.0.0.Alpha1

09:38:39,907 SEVERE [org.jboss.arquillian.warp.impl.server.enrichment.DefaultHttpResponseEnricher] (default task-49) Response enrichment failed to attach enrichment failure: java.lang.IllegalStateException: UT000002: The response has already been started
	at io.undertow.server.HttpServerExchange.setResponseCode(HttpServerExchange.java:940) [undertow-core-1.0.0.Alpha15.jar:1.0.0.Alpha15]
	at io.undertow.servlet.spec.HttpServletResponseImpl.setStatus(HttpServletResponseImpl.java:219) [undertow-servlet-1.0.0.Alpha15.jar:1.0.0.Alpha15]
	at org.jboss.arquillian.warp.impl.server.enrichment.DefaultHttpResponseEnricher.enrich(DefaultHttpResponseEnricher.java:87) [arquillian-warp.jar:]
	at org.jboss.arquillian.warp.impl.server.enrichment.DefaultHttpResponseEnricher.enrichResponse(DefaultHttpResponseEnricher.java:59) [arquillian-warp.jar:]
	at org.jboss.arquillian.warp.impl.server.execution.HttpRequestProcessor.enrichHttpResponse(HttpRequestProcessor.java:76) [arquillian-warp.jar:]
	at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) [rt.jar:1.7.0_19]
	at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57) [rt.jar:1.7.0_19]
	at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) [rt.jar:1.7.0_19]
	at java.lang.reflect.Method.invoke(Method.java:601) [rt.jar:1.7.0_19]
	at org.jboss.arquillian.core.impl.ObserverImpl.invoke(ObserverImpl.java:94) [arquillian-core.jar:]
	at org.jboss.arquillian.core.impl.EventContextImpl.invokeObservers(EventContextImpl.java:99) [arquillian-core.jar:]
	at org.jboss.arquillian.core.impl.EventContextImpl.proceed(EventContextImpl.java:81) [arquillian-core.jar:]
	at org.jboss.arquillian.core.impl.ManagerImpl.fire(ManagerImpl.java:135) [arquillian-core.jar:]
	at org.jboss.arquillian.core.impl.ManagerImpl.fire(ManagerImpl.java:115) [arquillian-core.jar:]
	at org.jboss.arquillian.core.impl.EventImpl.fire(EventImpl.java:67) [arquillian-core.jar:]
	at org.jboss.arquillian.warp.impl.server.execution.WarpRequestProcessor.processWarpRequest(WarpRequestProcessor.java:88) [arquillian-warp.jar:]
	at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) [rt.jar:1.7.0_19]
	at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57) [rt.jar:1.7.0_19]
	at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) [rt.jar:1.7.0_19]
	at java.lang.reflect.Method.invoke(Method.java:601) [rt.jar:1.7.0_19]
	at org.jboss.arquillian.core.impl.ObserverImpl.invoke(ObserverImpl.java:94) [arquillian-core.jar:]
	at org.jboss.arquillian.core.impl.EventContextImpl.invokeObservers(EventContextImpl.java:99) [arquillian-core.jar:]
	at org.jboss.arquillian.core.impl.EventContextImpl.proceed(EventContextImpl.ja