The Endpoint Interface does not have WebService Annotation

Following error appears when webservices-api.jar is missing on the classpath of the Servlet container (In my case Tomcat 5). Tomcat 5 expects this in either common/lib or common/endorsed

SEVERE: WSSERVLET11: failed to parse runtime descriptor: The Endpoint Interface: com.sun.portal.wsrp.common.stubs.WSRPV1RegistrationPortType does not have WebService Annotation
com.sun.xml.ws.model.RuntimeModelerException: The Endpoint Interface: com.sun.portal.wsrp.common.stubs.WSRPV1RegistrationPortType does not have WebService Annotation
	at com.sun.xml.ws.model.RuntimeModeler.getPortTypeName(RuntimeModeler.java:1316)
	at com.sun.xml.ws.server.EndpointFactory.createEndpoint(EndpointFactory.java:160)
	at com.sun.xml.ws.api.server.WSEndpoint.create(WSEndpoint.java:467)
	at com.sun.xml.ws.transport.http.DeploymentDescriptorParser.parseAdapters(DeploymentDescriptorParser.java:253)
	at com.sun.xml.ws.transport.http.DeploymentDescriptorParser.parse(DeploymentDescriptorParser.java:147)
	at com.sun.xml.ws.transport.http.servlet.WSServletContextListener.contextInitialized(WSServletContextListener.java:108)
	at org.apache.catalina.core.StandardContext.listenerStart(StandardContext.java:3764)
	at org.apache.catalina.core.StandardContext.start(StandardContext.java:4216)
	at org.apache.catalina.core.ContainerBase.addChildInternal(ContainerBase.java:760)
	at org.apache.catalina.core.ContainerBase.addChild(ContainerBase.java:740)
	at org.apache.catalina.core.StandardHost.addChild(StandardHost.java:544)
	at org.apache.catalina.startup.HostConfig.deployDirectory(HostConfig.java:926)
	at org.apache.catalina.startup.HostConfig.deployDirectories(HostConfig.java:889)
	at org.apache.catalina.startup.HostConfig.deployApps(HostConfig.java:492)
	at org.apache.catalina.startup.HostConfig.start(HostConfig.java:1149)
	at org.apache.catalina.startup.HostConfig.lifecycleEvent(HostConfig.java:311)
	at org.apache.catalina.util.LifecycleSupport.fireLifecycleEvent(LifecycleSupport.java:120)
	at org.apache.catalina.core.ContainerBase.start(ContainerBase.java:1022)
	at org.apache.catalina.core.StandardHost.start(StandardHost.java:736)
	at org.apache.catalina.core.ContainerBase.start(ContainerBase.java:1014)
	at org.apache.catalina.core.StandardEngine.start(StandardEngine.java:443)
	at org.apache.catalina.core.StandardService.start(StandardService.java:448)
	at org.apache.catalina.core.StandardServer.start(StandardServer.java:700)
	at org.apache.catalina.startup.Catalina.start(Catalina.java:552)
	at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
	at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
	at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
	at java.lang.reflect.Method.invoke(Method.java:585)
	at org.apache.catalina.startup.Bootstrap.start(Bootstrap.java:295)
	at org.apache.catalina.startup.Bootstrap.main(Bootstrap.java:433)
Jan 4, 2011 11:21:02 AM org.apache.catalina.core.StandardContext listenerStart
SEVERE: Exception sending context initialized event to listener instance of class com.sun.xml.ws.transport.http.servlet.WSServletContextListener
com.sun.xml.ws.transport.http.servlet.WSServletException: WSSERVLET11: failed to parse runtime descriptor: The Endpoint Interface: com.sun.portal.wsrp.common.stubs.WSRPV1RegistrationPortType does not have WebService Annotation
	at com.sun.xml.ws.transport.http.servlet.WSServletContextListener.contextInitialized(WSServletContextListener.java:118)
	at org.apache.catalina.core.StandardContext.listenerStart(StandardContext.java:3764)
	at org.apache.catalina.core.StandardContext.start(StandardContext.java:4216)
	at org.apache.catalina.core.ContainerBase.addChildInternal(ContainerBase.java:760)
	at org.apache.catalina.core.ContainerBase.addChild(ContainerBase.java:740)
	at org.apache.catalina.core.StandardHost.addChild(StandardHost.java:544)
	at org.apache.catalina.startup.HostConfig.deployDirectory(HostConfig.java:926)
	at org.apache.catalina.startup.HostConfig.deployDirectories(HostConfig.java:889)
	at org.apache.catalina.startup.HostConfig.deployApps(HostConfig.java:492)
	at org.apache.catalina.startup.HostConfig.start(HostConfig.java:1149)
	at org.apache.catalina.startup.HostConfig.lifecycleEvent(HostConfig.java:311)
	at org.apache.catalina.util.LifecycleSupport.fireLifecycleEvent(LifecycleSupport.java:120)
	at org.apache.catalina.core.ContainerBase.start(ContainerBase.java:1022)
	at org.apache.catalina.core.StandardHost.start(StandardHost.java:736)
	at org.apache.catalina.core.ContainerBase.start(ContainerBase.java:1014)
	at org.apache.catalina.core.StandardEngine.start(StandardEngine.java:443)
	at org.apache.catalina.core.StandardService.start(StandardService.java:448)
	at org.apache.catalina.core.StandardServer.start(StandardServer.java:700)
	at org.apache.catalina.startup.Catalina.start(Catalina.java:552)
	at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
	at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
	at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
	at java.lang.reflect.Method.invoke(Method.java:585)
	at org.apache.catalina.startup.Bootstrap.start(Bootstrap.java:295)
	at org.apache.catalina.startup.Bootstrap.main(Bootstrap.java:433)
Caused by: com.sun.xml.ws.model.RuntimeModelerException: The Endpoint Interface: com.sun.portal.wsrp.common.stubs.WSRPV1RegistrationPortType does not have WebService Annotation
	at com.sun.xml.ws.model.RuntimeModeler.getPortTypeName(RuntimeModeler.java:1316)
	at com.sun.xml.ws.server.EndpointFactory.createEndpoint(EndpointFactory.java:160)
	at com.sun.xml.ws.api.server.WSEndpoint.create(WSEndpoint.java:467)
	at com.sun.xml.ws.transport.http.DeploymentDescriptorParser.parseAdapters(DeploymentDescriptorParser.java:253)
	at com.sun.xml.ws.transport.http.DeploymentDescriptorParser.parse(DeploymentDescriptorParser.java:147)
	at com.sun.xml.ws.transport.http.servlet.WSServletContextListener.contextInitialized(WSServletContextListener.java:108)
	... 24 more
Jan 4, 2011 11:21:02 AM org.apache.catalina.core.StandardContext start
SEVERE: Error listenerStart
Jan 4, 2011 11:21:02 AM org.apache.catalina.core.StandardContext start
SEVERE: Context [/producer] startup failed due to previous errors