adjusted JAXWS webservice with webservices.xml descriptor complains about non-existence of jaxrpc-mapping-file element

<?xml version="1.0" encoding="UTF-8"?>
<webservices xmlns="http://java.sun.com/xml/ns/javaee"
      xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
      xsi:schemaLocation="http://java.sun.com/xml/ns/javaee	http://java.sun.com/xml/ns/javaee/javaee_web_services_1_3.xsd"
      version="1.3">

	<webservice-description>
		<webservice-description-name>
			PicketLinkSTS
		</webservice-description-name>
		<wsdl-file>
			WEB-INF/wsdl/PicketLinkSTS.wsdl
		</wsdl-file>
		<port-component>
			<port-component-name>PicketLinkSTSPort</port-component-name>
			<wsdl-port xmlns:tns="urn:picketlink:identity-federation:sts">PicketLinkSTSPort</wsdl-port>
			<!-- TODO: we don't have interface yet  
			<service-endpoint-interface>endpoint.WeatherService</service-endpoint-interface>
			-->
			<service-impl-bean>
				<servlet-link>PicketLinkSTS</servlet-link>
			</service-impl-bean>
		</port-component>
	</webservice-description>
</webservices>

10:47:32,523 ERROR [org.jboss.msc.service.fail] (MSC service thread 1-6) MSC00001: Failed to start service jboss.deployment.unit."picketlink-sts.war".INSTALL: org.jboss.msc.service.StartException in service jboss.deployment.unit."picketlink-sts.war".INSTALL: Failed to process phase INSTALL of deployment "picketlink-sts.war"
        at org.jboss.as.server.deployment.DeploymentUnitPhaseService.start(DeploymentUnitPhaseService.java:119) [jboss-as-server-7.1.0.Final-SNAPSHOT.jar:7.1.0.Final-SNAPSHOT]
        at org.jboss.msc.service.ServiceControllerImpl$StartTask.startService(ServiceControllerImpl.java:1811) [jboss-msc-1.0.2.GA.jar:1.0.2.GA]
        at org.jboss.msc.service.ServiceControllerImpl$StartTask.run(ServiceControllerImpl.java:1746) [jboss-msc-1.0.2.GA.jar:1.0.2.GA]
        at java.util.concurrent.ThreadPoolExecutor$Worker.runTask(ThreadPoolExecutor.java:886) [rt.jar:1.6.0_30]
        at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:908) [rt.jar:1.6.0_30]
        at java.lang.Thread.run(Thread.java:662) [rt.jar:1.6.0_30]
Caused by: org.jboss.ws.WSException: jaxrpc-mapping-file not configured from webservices.xml
        at org.jboss.ws.metadata.builder.jaxrpc.JAXRPCServerMetaDataBuilder.buildMetaData(JAXRPCServerMetaDataBuilder.java:107)
        at org.jboss.wsf.stack.jbws.UnifiedMetaDataDeploymentAspect.start(UnifiedMetaDataDeploymentAspect.java:74)
        at org.jboss.as.webservices.deployers.AspectDeploymentProcessor.deploy(AspectDeploymentProcessor.java:81)
        at org.jboss.as.server.deployment.DeploymentUnitPhaseService.start(DeploymentUnitPhaseService.java:113) [jboss-as-server-7.1.0.Final-SNAPSHOT.jar:7.1.0.Final-SNAPSHOT]
        ... 5 more