[undertow-dev] build broken on F18

hi I have the following: +++ 15:02:01,505 INFO (main) [org.xnio.nio] <NioXnio.java:51> XNIO NIO Implementation Version 3.1.0.Beta9 15:02:02,095 ERROR (XNIO-1 read-4) [org.xnio.listener] <ChannelListeners.java:93> A channel event listener threw an exception: java.lang.ExceptionInInitializerError at io.undertow.server.HttpOpenListener.handleEvent(HttpOpenListener.java:68) at io.undertow.server.HttpOpenListener.handleEvent(HttpOpenListener.java:1) at org.xnio.ChannelListeners.invokeChannelListener(ChannelListeners.java:91) at org.xnio.ChannelListeners$10.handleEvent(ChannelListeners.java:290) at org.xnio.ChannelListeners$10.handleEvent(ChannelListeners.java:285) at org.xnio.ChannelListeners.invokeChannelListener(ChannelListeners.java:91) at org.xnio.ChannelListeners$DelegatingChannelListener.handleEvent(ChannelListeners.java:1052) at org.xnio.ChannelListeners.invokeChannelListener(ChannelListeners.java:91) at org.xnio.ChannelListeners$DelegatingChannelListener.handleEvent(ChannelListeners.java:1052) at org.xnio.ChannelListeners.invokeChannelListener(ChannelListeners.java:91) at org.xnio.nio.NioTcpServerHandle.handleReady(NioTcpServerHandle.java:53) at org.xnio.nio.WorkerThread.run(WorkerThread.java:518) Caused by: java.lang.IllegalArgumentException: Invalid logger interface io.undertow.UndertowLogger (implementation not found in sun.misc.Launcher$AppClassLoader@b36022) at org.jboss.logging.Logger.getMessageLogger(Logger.java:2249) at org.jboss.logging.Logger.getMessageLogger(Logger.java:2211) at io.undertow.UndertowLogger.<clinit>(UndertowLogger.java:42) ... 12 more +++ and the build hangs forever :-( Any hints? Cheers Jean-Frederic