I followed the example in the book. However, I got the following exception when running deploy-ws command. What did go wrong in parsing Webservices.xml?

11:19:18,824 ERROR [ObjectModelBuilder] Failed to invoke method newChild
java.lang.NoClassDefFoundError: javax/wsdl/WSDLException
at org.jboss.webservice.metadata.WebservicesFactory.newChild(Webservice
Factory.java:75)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl
java:39)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAcce
sorImpl.java:25)
at java.lang.reflect.Method.invoke(Method.java:324)
at org.jboss.xml.binding.ObjectModelBuilder.invokeFactory(ObjectModelBu
lder.java:346)
at org.jboss.xml.binding.ObjectModelBuilder.newChild(ObjectModelBuilder
java:246)
at org.jboss.xml.binding.ObjectModelBuilder.startElement(ObjectModelBui
der.java:166)
at org.jboss.xml.binding.Content$StartElement.read(Content.java:295)
at org.jboss.xml.binding.Content.build(Content.java:187)
at org.jboss.xml.binding.ObjectModelBuilder.build(ObjectModelBuilder.ja
a:87)
at org.jboss.xml.binding.Unmarshaller.unmarshal(Unmarshaller.java:156)
at org.jboss.xml.binding.Unmarshaller.unmarshal(Unmarshaller.java:140)
at org.jboss.webservice.ServiceDeployer.parseWebservicesXML(ServiceDepl
yer.java:278)
at org.jboss.webservice.ServiceDeployer.createWebservice(ServiceDeploye
.java:146)
at org.jboss.webservice.ServiceDeployer.handleNotification(ServiceDeplo
er.java:103)
at sun.reflect.GeneratedMethodAccessor4.invoke(Unknown Source)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAcce
sorImpl.java:25)
at java.lang.reflect.Method.invoke(Method.java:324)
at org.jboss.mx.notification.NotificationListenerProxy.invoke(Notificat
onListenerProxy.java:138)
at $Proxy21.handleNotification(Unknown Source)
at javax.management.NotificationBroadcasterSupport.handleNotification(N
tificationBroadcasterSupport.java:98)
at javax.management.NotificationBroadcasterSupport.sendNotification(Not
ficationBroadcasterSupport.java:83)
at org.jboss.deployment.SubDeployerSupport.create(SubDeployerSupport.ja
a:163)
at org.jboss.ejb.EJBDeployer.create(EJBDeployer.java:591)
at org.jboss.deployment.MainDeployer.create(MainDeployer.java:817)
at org.jboss.deployment.MainDeployer.deploy(MainDeployer.java:673)
at org.jboss.deployment.MainDeployer.deploy(MainDeployer.java:637)
at sun.reflect.GeneratedMethodAccessor46.invoke(Unknown Source)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAcce
sorImpl.java:25)
at java.lang.reflect.Method.invoke(Method.java:324)
at org.jboss.mx.interceptor.ReflectedDispatcher.invoke(ReflectedDispatc
er.java:141)
at org.jboss.mx.server.Invocation.dispatch(Invocation.java:80)
at org.jboss.mx.server.Invocation.invoke(Invocation.java:72)
at org.jboss.mx.server.AbstractMBeanInvoker.invoke(AbstractMBeanInvoker
java:230)
at org.jboss.mx.server.MBeanServerImpl.invoke(MBeanServerImpl.java:642)
at org.jboss.mx.util.MBeanProxyExt.invoke(MBeanProxyExt.java:176)
at $Proxy7.deploy(Unknown Source)
at org.jboss.deployment.scanner.URLDeploymentScanner.deploy(URLDeployme
tScanner.java:304)
at org.jboss.deployment.scanner.URLDeploymentScanner.scan(URLDeployment
canner.java:478)
at org.jboss.deployment.scanner.AbstractDeploymentScanner$ScannerThread
doScan(AbstractDeploymentScanner.java:201)
at org.jboss.deployment.scanner.AbstractDeploymentScanner$ScannerThread
loop(AbstractDeploymentScanner.java:212)
at org.jboss.deployment.scanner.AbstractDeploymentScanner$ScannerThread
run(AbstractDeploymentScanner.java:191)
11:19:18,844 ERROR [ServiceDeployer] Cannot startup webservice for: bankws-ejb.
ar
org.jboss.deployment.DeploymentException: Cannot obtain webservices meta data;
nested throwable: (java.lang.IllegalStateException: Failed to invoke method ne
Child)
at org.jboss.webservice.ServiceDeployer.parseWebservicesXML(ServiceDepl
yer.java:287)
at org.jboss.webservice.ServiceDeployer.createWebservice(ServiceDeploye
.java:146)
at org.jboss.webservice.ServiceDeployer.handleNotification(ServiceDeplo
er.java:103)
at sun.reflect.GeneratedMethodAccessor4.invoke(Unknown Source)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAcce
sorImpl.java:25)
at java.lang.reflect.Method.invoke(Method.java:324)
at org.jboss.mx.notification.NotificationListenerProxy.invoke(Notificat
onListenerProxy.java:138)
at $Proxy21.handleNotification(Unknown Source)
at javax.management.NotificationBroadcasterSupport.handleNotification(N
tificationBroadcasterSupport.java:98)
at javax.management.NotificationBroadcasterSupport.sendNotification(Not
ficationBroadcasterSupport.java:83)
at org.jboss.deployment.SubDeployerSupport.create(SubDeployerSupport.ja
a:163)
at org.jboss.ejb.EJBDeployer.create(EJBDeployer.java:591)
at org.jboss.deployment.MainDeployer.create(MainDeployer.java:817)
at org.jboss.deployment.MainDeployer.deploy(MainDeployer.java:673)
at org.jboss.deployment.MainDeployer.deploy(MainDeployer.java:637)
at sun.reflect.GeneratedMethodAccessor46.invoke(Unknown Source)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAcce
sorImpl.java:25)
at java.lang.reflect.Method.invoke(Method.java:324)
at org.jboss.mx.interceptor.ReflectedDispatcher.invoke(ReflectedDispatc
er.java:141)
at org.jboss.mx.server.Invocation.dispatch(Invocation.java:80)
at org.jboss.mx.server.Invocation.invoke(Invocation.java:72)
at org.jboss.mx.server.AbstractMBeanInvoker.invoke(AbstractMBeanInvoker
java:230)
at org.jboss.mx.server.MBeanServerImpl.invoke(MBeanServerImpl.java:642)
at org.jboss.mx.util.MBeanProxyExt.invoke(MBeanProxyExt.java:176)
at $Proxy7.deploy(Unknown Source)
at org.jboss.deployment.scanner.URLDeploymentScanner.deploy(URLDeployme
tScanner.java:304)
at org.jboss.deployment.scanner.URLDeploymentScanner.scan(URLDeployment
canner.java:478)
at org.jboss.deployment.scanner.AbstractDeploymentScanner$ScannerThread
doScan(AbstractDeploymentScanner.java:201)
at org.jboss.deployment.scanner.AbstractDeploymentScanner$ScannerThread
loop(AbstractDeploymentScanner.java:212)
at org.jboss.deployment.scanner.AbstractDeploymentScanner$ScannerThread
run(AbstractDeploymentScanner.java:191)
Caused by: java.lang.IllegalStateException: Failed to invoke method newChild
at org.jboss.xml.binding.ObjectModelBuilder.invokeFactory(ObjectModelBu
lder.java:351)
at org.jboss.xml.binding.ObjectModelBuilder.newChild(ObjectModelBuilder
java:246)
at org.jboss.xml.binding.ObjectModelBuilder.startElement(ObjectModelBui
der.java:166)
at org.jboss.xml.binding.Content$StartElement.read(Content.java:295)
at org.jboss.xml.binding.Content.build(Content.java:187)
at org.jboss.xml.binding.ObjectModelBuilder.build(ObjectModelBuilder.ja
a:87)
at org.jboss.xml.binding.Unmarshaller.unmarshal(Unmarshaller.java:156)
at org.jboss.xml.binding.Unmarshaller.unmarshal(Unmarshaller.java:140)
at org.jboss.webservice.ServiceDeployer.parseWebservicesXML(ServiceDepl
yer.java:278)
... 29 more
11:19:18,864 INFO [EJBDeployer] Deployed: file:/D:/jboss-4.0.0RC1/server/defau
t/deploy/bankws-ejb.jar