Exception in thread "main" java.lang.NoClassDefFoundError: org/apache/xerces/xs/XSModel
	at org.jboss.ws.metadata.builder.jaxws.JAXWSClientMetaDataBuilder.buildMetaData(JAXWSClientMetaDataBuilder.java:80)
	at org.jboss.ws.core.jaxws.spi.ServiceDelegateImpl.<init>(ServiceDelegateImpl.java:140)
	at org.jboss.ws.core.jaxws.spi.ProviderImpl.createServiceDelegate(ProviderImpl.java:65)
	at javax.xml.ws.Service.<init>(Service.java:56)
	at org.jboss.samples.webservices.HelloWorldService.<init>(HelloWorldService.java:45)
	at org.jboss.samples.webservices.clientsample.ClientSample.main(ClientSample.java:10)
Caused by: java.lang.ClassNotFoundException: org.apache.xerces.xs.XSModel
	at java.net.URLClassLoader$1.run(URLClassLoader.java:202)
	at java.security.AccessController.doPrivileged(Native Method)
	at java.net.URLClassLoader.findClass(URLClassLoader.java:190)
	at java.lang.ClassLoader.loadClass(ClassLoader.java:306)
	at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:301)
	at java.lang.ClassLoader.loadClass(ClassLoader.java:247)
	... 6 more