从SOAP UI执行SOAP请求时，我得到了nullpointerexception，但是错误没有给出错误的确切位置。
任何人都可以帮助我解决以下错误：
org.xml.sax.SAXException: null
at org.apache.axis.encoding.ser.SimpleDeserializer.onEndElement(SimpleDeserializer.java:180) ~[axis-1.4.jar:?]
at org.apache.axis.encoding.DeserializerImpl.endElement(DeserializerImpl.java:502) ~[axis-1.4.jar:?]
at org.apache.axis.encoding.DeserializationContext.endElement(DeserializationContext.java:1087) ~[axis-1.4.jar:?]
at org.apache.axis.message.SAX2EventRecorder.replay(SAX2EventRecorder.java:171) ~[axis-1.4.jar:?]
at org.apache.axis.message.MessageElement.publishToHandler(MessageElement.java:1141) ~[axis-1.4.jar:?]
at org.apache.axis.message.RPCElement.deserialize(RPCElement.java:236) ~[axis-1.4.jar:?]
at org.apache.axis.message.RPCElement.getParams(RPCElement.java:384) ~[axis-1.4.jar:?]
at org.apache.axis.client.Call.invoke(Call.java:2467) [axis-1.4.jar:?]
at org.apache.axis.client.Call.invoke(Call.java:2366) [axis-1.4.jar:?]
at org.apache.axis.client.Call.invoke(Call.java:1812) [axis-1.4.jar:?]
Caused by: java.lang.NullPointerException
at org.apache.axis.encoding.ser.EnumDeserializer.makeValue(EnumDeserializer.java:53) ~[axis-1.4.jar:?]
at org.apache.axis.encoding.ser.SimpleDeserializer.onEndElement(SimpleDeserializer.java:172) ~[axis-1.4.jar:?]
... 66 more
有人可以帮我吗？