CXF wrongly assumes that code using WSA must be employing a request-reply exchange

00:44:38,254 INFO [org.jboss.ws.common.management.DefaultEndpointRegistry] (MSC service thread 1-4) remove: jboss.ws:context=ws-t11-client,endpoint=CompletionInitiator
00:44:38,256 INFO [org.jboss.ws.common.management.DefaultEndpointRegistry] (MSC service thread 1-4) remove: jboss.ws:context=ws-t11-client,endpoint=TerminationParticipant
00:44:38,258 ERROR [org.jboss.msc.service.fail] (MSC service thread 1-4) MSC00001: Failed to start service jboss.deployment.unit."ws-t11-client.war".INSTALL: org.jboss.msc.service.StartException in service jboss.deployment.unit."ws-t11-client.war".INSTALL: Failed to process phase INSTALL of deployment "ws-t11-client.war"
at org.jboss.as.server.deployment.DeploymentUnitPhaseService.start(DeploymentUnitPhaseService.java:121) [jboss-as-server-7.0.0.Beta4-SNAPSHOT.jar:7.0.0.Beta4-SNAPSHOT]
at org.jboss.msc.service.ServiceControllerImpl$StartTask.run(ServiceControllerImpl.java:1675) [jboss-msc-1.0.0.Beta8.jar:1.0.0.Beta8]
at java.util.concurrent.ThreadPoolExecutor$Worker.runTask(ThreadPoolExecutor.java:886) [:1.6.0_21]
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:908) [:1.6.0_21]
at java.lang.Thread.run(Thread.java:619) [:1.6.0_21]
Caused by: javax.xml.ws.WebServiceException: java.lang.NullPointerException
at org.apache.cxf.jaxws.EndpointImpl.doPublish(EndpointImpl.java:350)
at org.jboss.wsf.stack.cxf.deployment.EndpointImpl.doPublish(EndpointImpl.java:71)
at org.apache.cxf.jaxws.EndpointImpl.publish(EndpointImpl.java:239)
at org.apache.cxf.jaxws.EndpointImpl.publish(EndpointImpl.java:509)
at org.jboss.wsf.stack.cxf.configuration.NonSpringBusHolder.configure(NonSpringBusHolder.java:113)
at org.jboss.wsf.stack.cxf.deployment.aspect.BusDeploymentAspect.startDeploymentBus(BusDeploymentAspect.java:109)
at org.jboss.wsf.stack.cxf.deployment.aspect.BusDeploymentAspect.start(BusDeploymentAspect.java:132)
at org.jboss.as.webservices.deployers.AspectDeploymentProcessor.internalDeploy(AspectDeploymentProcessor.java:78)
at org.jboss.as.webservices.deployers.TCCLDeploymentProcessor.deploy(TCCLDeploymentProcessor.java:42)
at org.jboss.as.server.deployment.DeploymentUnitPhaseService.start(DeploymentUnitPhaseService.java:115) [jboss-as-server-7.0.0.Beta4-SNAPSHOT.jar:7.0.0.Beta4-SNAPSHOT]
... 4 more
Caused by: java.lang.NullPointerException
at org.apache.cxf.jaxws.support.JaxWsServiceFactoryBean.buildWSAActions(JaxWsServiceFactoryBean.java:547)
at org.apache.cxf.jaxws.support.JaxWsServiceFactoryBean.createOperation(JaxWsServiceFactoryBean.java:620)
at org.apache.cxf.service.factory.ReflectionServiceFactoryBean.createInterface(ReflectionServiceFactoryBean.java:903)
at org.apache.cxf.service.factory.ReflectionServiceFactoryBean.buildServiceFromClass(ReflectionServiceFactoryBean.java:429)
at org.apache.cxf.jaxws.support.JaxWsServiceFactoryBean.buildServiceFromClass(JaxWsServiceFactoryBean.java:680)
at org.apache.cxf.service.factory.ReflectionServiceFactoryBean.initializeServiceModel(ReflectionServiceFactoryBean.java:501)
at org.apache.cxf.service.factory.ReflectionServiceFactoryBean.create(ReflectionServiceFactoryBean.java:241)
at org.apache.cxf.jaxws.support.JaxWsServiceFactoryBean.create(JaxWsServiceFactoryBean.java:202)
at org.apache.cxf.frontend.AbstractWSDLBasedEndpointFactory.createEndpoint(AbstractWSDLBasedEndpointFactory.java:101)
at org.apache.cxf.frontend.ServerFactoryBean.create(ServerFactoryBean.java:157)
at org.apache.cxf.jaxws.JaxWsServerFactoryBean.create(JaxWsServerFactoryBean.java:192)
at org.apache.cxf.jaxws.EndpointImpl.getServer(EndpointImpl.java:433)
at org.apache.cxf.jaxws.EndpointImpl.doPublish(EndpointImpl.java:322)
... 13 more

The null pointer exception which causes the problem is in the following code taken from JaxWsServiceFactoryBean.buildWSAActions

. . .
if (action == null && addressing != null)

{ operation.getInput().addExtensionAttribute(JAXWSAConstants.WSAM_ACTION_QNAME, inputAction); operation.getInput().addExtensionAttribute(JAXWSAConstants.WSAW_ACTION_QNAME, inputAction); operation.getOutput().addExtensionAttribute(JAXWSAConstants.WSAM_ACTION_QNAME, computeAction(operation, "Response")); operation.getOutput().addExtensionAttribute(JAXWSAConstants.WSAW_ACTION_QNAME, computeAction(operation, "Response")); }

else {

MessageInfo input = operation.getInput();

input.addExtensionAttribute(JAXWSAConstants.WSAM_ACTION_QNAME, inputAction);

if (!StringUtils.isEmpty(action.input()))

{ input.addExtensionAttribute(JAXWSAConstants.WSAW_ACTION_QNAME, inputAction); }

MessageInfo output = operation.getOutput();

if (output != null && !StringUtils.isEmpty(action.output())) {

output.addExtensionAttribute(JAXWSAConstants.WSAW_ACTION_QNAME, action.output());

. . .

The offending line is the one in bold. Notice that in the else clause the result of the getOutput() call is checked ut in the case where addressing is being used it is not checked. Clearly the code is based on the wrong assumption that code using WSA must be employing a request-reply exchange.