Caused by: java.lang.ClassNotFoundException: org.apache.ws.commons.schema.utils.

在做Axis2测试时出现下面错误：

Exception in thread "main" java.lang.NoClassDefFoundError: org/apache/ws/commons/schema/utils/NamespacePrefixList
	at org.apache.axis2.client.ServiceClient.createAnonymousService(ServiceClient.java:243)
	at org.apache.axis2.client.ServiceClient.configureServiceClient(ServiceClient.java:144)
	at org.apache.axis2.client.ServiceClient.<init>(ServiceClient.java:133)
	at org.apache.axis2.client.ServiceClient.<init>(ServiceClient.java:229)
	at org.apache.axis2.rpc.client.RPCServiceClient.<init>(RPCServiceClient.java:45)
	at sample.addressbook.rpcclient.AddressBookRPCClient.main(AddressBookRPCClient.java:16)
Caused by: java.lang.ClassNotFoundException: org.apache.ws.commons.schema.utils.NamespacePrefixList
	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

解决方法： 导入样例lib下的XmlSchema-1.3.1.jar包即可。