Jawr servlet with name JavascriptServlet failed to initialize properly.

I'm deploying a OSGi WAB file on the latest WildFly 8.0.0.Alpha2-SNAPSHOT server. Can not initialize the JavascriptServlet from JAWR Bundle. Note: When I used the <extension module="org.jboss.as.web"/> insted of <extension module="org.wildfly.extension.undertow"/> it works.

Please see error trace below.

16:39:44,476 FATAL [net.jawr.web.servlet.JawrServlet] (MSC service thread 1-3) Jawr servlet with name JavascriptServlet failed to initialize properly.
16:39:44,476 FATAL [net.jawr.web.servlet.JawrServlet] (MSC service thread 1-3) Cause:
16:39:44,476 FATAL [net.jawr.web.servlet.JawrServlet] (MSC service thread 1-3) null: java.lang.reflect.UndeclaredThrowableException
at com.sun.proxy.$Proxy22.getResource(Unknown Source)
at net.jawr.web.resource.handler.reader.ServletContextResourceReaderHandler.getResource(ServletContextResourceReaderHandler.java:192) [ServletContextResourceReaderHandler.class:]
at net.jawr.web.resource.bundle.handler.ResourceBundlesHandlerImpl.joinAndPostprocessBundle(ResourceBundlesHandlerImpl.java:892) [ResourceBundlesHandlerImpl.class:]
at net.jawr.web.resource.bundle.handler.ResourceBundlesHandlerImpl.joinAndPostProcessBundle(ResourceBundlesHandlerImpl.java:835) [ResourceBundlesHandlerImpl.class:]
at net.jawr.web.resource.bundle.handler.ResourceBundlesHandlerImpl.joinAndStoreBundle(ResourceBundlesHandlerImpl.java:766) [ResourceBundlesHandlerImpl.class:]
at net.jawr.web.resource.bundle.handler.ResourceBundlesHandlerImpl.initAllBundles(ResourceBundlesHandlerImpl.java:542) [ResourceBundlesHandlerImpl.class:]
at net.jawr.web.resource.bundle.handler.CachedResourceBundlesHandler.initAllBundles(CachedResourceBundlesHandler.java:126) [CachedResourceBundlesHandler.class:]
at net.jawr.web.resource.bundle.factory.BundlesHandlerFactory.buildResourceBundlesHandler(BundlesHandlerFactory.java:233) [BundlesHandlerFactory.class:]
at net.jawr.web.resource.bundle.factory.PropertiesBasedBundlesHandlerFactory.buildResourceBundlesHandler(PropertiesBasedBundlesHandlerFactory.java:204) [PropertiesBasedBundlesHandlerFactory.class:]
at net.jawr.web.servlet.JawrRequestHandler.initializeJawrConfig(JawrRequestHandler.java:349) [JawrRequestHandler.class:]
at net.jawr.web.servlet.JawrRequestHandler.initRequestHandler(JawrRequestHandler.java:262) [JawrRequestHandler.class:]
at net.jawr.web.servlet.JawrRequestHandler.<init>(JawrRequestHandler.java:184) [JawrRequestHandler.class:]
at net.jawr.web.servlet.JawrServlet.init(JawrServlet.java:56) [JawrServlet.class:]
at javax.servlet.GenericServlet.init(GenericServlet.java:244) [jboss-servlet-api_3.1_spec-1.0.0.Alpha1.jar:1.0.0.Alpha1]
at io.undertow.servlet.core.ManagedServlet$DefaultInstanceStrategy.start(ManagedServlet.java:145) [undertow-servlet-1.0.0.Alpha15.jar:1.0.0.Alpha15]
at io.undertow.servlet.core.ManagedServlet.start(ManagedServlet.java:62) [undertow-servlet-1.0.0.Alpha15.jar:1.0.0.Alpha15]
at io.undertow.servlet.core.DeploymentManagerImpl.start(DeploymentManagerImpl.java:599) [undertow-servlet-1.0.0.Alpha15.jar:1.0.0.Alpha15]
at org.wildfly.extension.undertow.deployment.UndertowDeploymentService.start(UndertowDeploymentService.java:77)
at org.jboss.msc.service.ServiceControllerImpl$StartTask.startService(ServiceControllerImpl.java:1974) [jboss-msc-1.1.2.Final.jar:1.1.2.Final]
at org.jboss.msc.service.ServiceControllerImpl$StartTask.run(ServiceControllerImpl.java:1907) [jboss-msc-1.1.2.Final.jar:1.1.2.Final]
at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1145) [rt.jar:1.7.0_21]
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:615) [rt.jar:1.7.0_21]
at java.lang.Thread.run(Thread.java:722) [rt.jar:1.7.0_21]
Caused by: java.lang.reflect.InvocationTargetException
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) [rt.jar:1.7.0_21]
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57) [rt.jar:1.7.0_21]
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) [rt.jar:1.7.0_21]
at java.lang.reflect.Method.invoke(Method.java:601) [rt.jar:1.7.0_21]
at net.jawr.web.resource.bundle.generator.ResourceGeneratorReaderProxyFactory$ResourceGeneratorReaderWrapperInvocationHandler.invoke(ResourceGeneratorReaderProxyFactory.java:167) [ResourceGeneratorReaderProxyFactory$ResourceGeneratorReaderWrapperInvocationHandler.class:]
... 23 more
Caused by: java.lang.IllegalArgumentException: The DWR bean named 'TransactionService' was not found in any DWR configuration instance.
at net.jawr.web.resource.bundle.generator.dwr.DWRBeanGenerator.getInterfaceScript(DWRBeanGenerator.java:265) [DWRBeanGenerator.class:]
at net.jawr.web.resource.bundle.generator.dwr.DWRBeanGenerator.createResource(DWRBeanGenerator.java:134) [DWRBeanGenerator.class:]
at net.jawr.web.resource.bundle.generator.ResourceGeneratorReaderWrapper.getResource(ResourceGeneratorReaderWrapper.java:135) [ResourceGeneratorReaderWrapper.class:]
... 28 more