急问 Could not initialize class的错误

[dsk22657]

运行客户端，出现如下提示：
org.apache.axis2.AxisFault: Could not initialize class com.test.RayDataSource
at org.apache.axis2.util.Utils.getInboundFaultFromMessageContext(Utils.java:512)
at org.apache.axis2.description.OutInAxisOperationClient.handleResponse(OutInAxisOperation.java:370)
at org.apache.axis2.description.OutInAxisOperationClient.send(OutInAxisOperation.java:416)
at org.apache.axis2.description.OutInAxisOperationClient.executeImpl(OutInAxisOperation.java:228)
at org.apache.axis2.client.OperationClient.execute(OperationClient.java:163)
at org.apache.axis2.client.ServiceClient.sendReceive(ServiceClient.java:548)
at org.apache.axis2.client.ServiceClient.sendReceive(ServiceClient.java:528)
at com.raymond.axis2.client.SendClient.upload(SendClient.java:89)
at com.raymond.axis2.client.SendClient.main(SendClient.java:285)
Exception in thread "main" java.lang.NullPointerException
at com.raymond.axis2.client.SendFaxClient.main(SendFaxClient.java:293)

请问，这个应该怎么解决，谢谢。

[dsk22657]

补充，服务端放本机就没有错误，放到外网就出现这个错误。

[jinxfei]

at com.raymond.axis2.client.SendFaxClient.main(SendFaxClient.java:293)
这一行出现空指针错误，

com.raymond.axis2.client.SendFaxClient
把这个类的代码贴出来看看，指出293行是哪一行？

[dsk22657]

for (Iterator _iterator = element.getChildElements(); _iterator //指的是这里
.hasNext();) {
OMElement _ele = (OMElement) _iterator.next();

if (_ele.getLocalName().equalsIgnoreCase("result")) {
OMresult = _ele;
}
if (_ele.getLocalName().equalsIgnoreCase("msg")) {
OMmsg = _ele;
}
if (_ele.getLocalName().equalsIgnoreCase("sendid")) {
OMsendID = _ele;
}
}

[dsk22657]

我看了下WSDL，
- <wsdl:service name="SendFax">
- <wsdl:port name="SendFaxHttpSoap11Endpoint" binding="ns:SendFaxSoap11Binding">
<soap:address location="http://192.168.1.151:8082/axis2/services/SendFax.SendFaxHttpSoap11Endpoint/" />
</wsdl:port>
- <wsdl:port name="SendFaxHttpSoap12Endpoint" binding="ns:SendFaxSoap12Binding">
<soap12:address location="http://192.168.1.151:8082/axis2/services/SendFax.SendFaxHttpSoap12Endpoint/" />
</wsdl:port>
- <wsdl:port name="SendFaxHttpEndpoint" binding="ns:SendFaxHttpBinding">
<http:address location="http://192.168.1.151:8082/axis2/services/SendFax.SendFaxHttpEndpoint/" />
</wsdl:port>
</wsdl:service>
这个192.168.1.151怎么换成对应的域名？