I have two web services with the sayHello() operation. The first WS requires a string parameter, the second does not have any. Both WS are in the same package (see the attached jar). The following exception is thrown when you try to deploy it. If the services are deployed as two separate archives, the problem disappears.

org.jboss.ws.WSException: arg0 is not a valid property on class org.jboss.soa.esb.samples.quickstart.helloworld_ejb3.jaxws.SayHello
at com.sun.xml.bind.v2.runtime.JAXBContextImpl.getElementPropertyAccessor(JAXBContextImpl.java:936)
at org.jboss.ws.metadata.accessor.JAXBAccessorFactory.create(JAXBAccessorFactory.java:49)
at org.jboss.ws.metadata.umdm.EndpointMetaData.createAccessor(EndpointMetaData.java:715)
at org.jboss.ws.metadata.umdm.EndpointMetaData.eagerInitializeAccessors(EndpointMetaData.java:671)
at org.jboss.ws.metadata.umdm.EndpointMetaData.initializeInternal(EndpointMetaData.java:543)
at org.jboss.ws.metadata.umdm.EndpointMetaData.eagerInitialize(EndpointMetaData.java:531)
at org.jboss.ws.metadata.umdm.ServiceMetaData.eagerInitialize(ServiceMetaData.java:433)
at org.jboss.ws.metadata.umdm.UnifiedMetaData.eagerInitialize(UnifiedMetaData.java:194)
at org.jboss.wsf.stack.jbws.EagerInitializeDeploymentAspect.start(EagerInitializeDeploymentAspect.java:48)
at org.jboss.wsf.framework.deployment.DeploymentAspectManagerImpl.deploy(DeploymentAspectManagerImpl.java:129)
at org.jboss.wsf.container.jboss50.deployer.ArchiveDeployerHook.deploy(ArchiveDeployerHook.java:76)
at org.jboss.wsf.container.jboss50.deployer.AbstractWebServiceDeployer.internalDeploy(AbstractWebServiceDeployer.java:60)
at org.jboss.wsf.container.jboss50.deployer.WebServiceDeployerEJB.internalDeploy(WebServiceDeployerEJB.java:113)
at org.jboss.deployers.spi.deployer.helpers.AbstractRealDeployer.deploy(AbstractRealDeployer.java:50)
at org.jboss.deployers.plugins.deployers.DeployerWrapper.deploy(DeployerWrapper.java:171)
... 24 more