JAX-WS RI wsimport not working

[Sim Kim]

I have done all the installation and class path settings .
I am using the samples folder given in the jax-ws ri installer.
Could build the war file and deploy it on the server but while generating client files using the ant , I am getting following error :

  [wsimport] E:\Samples\build\classes\fromja
va\client\AddNumbers.java:29: illegal character: \64
 [wsimport] @XmlAccessorType(XmlAccessType.FIELD)
 [wsimport] ^
 [wsimport] E:\Samples\build\classes\fromja
va\client\AddNumbers.java:30: illegal character: \64
 [wsimport] @XmlType(name = "addNumbers", propOrder = {
 [wsimport] ^
 [wsimport] E:\Samples\build\classes\fromja
va\client\AddNumbersException.java:29: illegal character: \64
 [wsimport] @XmlAccessorType(XmlAccessType.FIELD)
 [wsimport] ^
 [wsimport] E:\Samples\build\classes\fromja
va\client\AddNumbersException.java:30: illegal character: \64
 [wsimport] @XmlType(name = "AddNumbersException", propOrder = {
 [wsimport] ^
 [wsimport] E:\Samples\build\classes\fromja
va\client\AddNumbersException_Exception.java:13: illegal character: \64
 [wsimport] @WebFault(name = "AddNumbersException", targetNamespace = "http://se
rver.fromjava/")
 [wsimport] ^
 [wsimport] E:\Samples\build\classes\fromja
va\client\AddNumbersImpl.java:19: illegal character: \64
 [wsimport] @WebService(name = "AddNumbersImpl", targetNamespace = "http://serve
r.fromjava/")
 [wsimport] ^
 [wsimport] E:\Samples\build\classes\fromja
va\client\AddNumbersImpl.java:20: illegal character: \64
 [wsimport] @XmlSeeAlso({
 [wsimport] ^
 [wsimport] E:\Samples\build\classes\fromja
va\client\AddNumbersImpl.java:22: <identifier> expected
 [wsimport] })
 [wsimport] ^
 [wsimport] E:\Samples\build\classes\fromja
va\client\AddNumbersImpl.java:22: 'class' or 'interface' expected
 [wsimport] })
 [wsimport]  ^
 [wsimport] E:\Samples\build\classes\fromja
va\client\AddNumbersImpl.java:34: illegal character: \64
 [wsimport]     @WebMethod
 [wsimport]     ^
 [wsimport] E:\Samples\build\classes\fromja
va\client\AddNumbersImpl.java:35: illegal character: \64
 [wsimport]     @WebResult(targetNamespace = "")
 [wsimport]     ^
....

The classpath seems to be fine .