Hi there,
I am using a JAXMServlet that implements the ReqRespListener interface.
The allowed method is onMessage which takes a SOAPMessage parameter and
returns a SOAPMessage object. When I tried hosting the JAXMServlet in
Axis I got a serializer error. I specified a beanMapping and I was able
to get the WSDL using which I generated proxy classes using WSDL2Java. I
wrote a client which makes a call to the service using the stub, but it
throws a NullPointerException. I believe I am using the wrong ser/deser.
Could someone suggest the serializer I am supposed to use to ser/deser
SOAPMessage objects? How do I go about writing my own serializer? I
have started looking at the files in the samples folder for custom
ser/deser examples, but would like to see a simple working example that
would ser/deser SOAPMessages. I have copied below the error message I
get on running my client. Thanks.
- Exception:
java.lang.NullPointerException
at
org.apache.axis.Message.getContentDescription(Message.java:464)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown
Source)
at java.lang.reflect.Method.invoke(Unknown Source)
at
org.apache.axis.utils.BeanPropertyDescriptor.get(BeanPropertyDescriptor.java:144)
at
org.apache.axis.encoding.ser.BeanSerializer.serialize(BeanSerializer.java:207)
at
org.apache.axis.encoding.SerializationContextImpl.serializeActual(SerializationContextImpl.java:1255)
at
org.apache.axis.encoding.SerializationContextImpl.serialize(SerializationContextImpl.java:795)
at org.apache.axis.message.RPCParam.serialize(RPCParam.java:225)
at
org.apache.axis.message.RPCElement.outputImpl(RPCElement.java:387)
at
org.apache.axis.message.MessageElement.output(MessageElement.java:783)
at org.apache.axis.message.SOAPBody.outputImpl(SOAPBody.java:174)
at
org.apache.axis.message.SOAPEnvelope.outputImpl(SOAPEnvelope.java:509)
at
org.apache.axis.message.MessageElement.output(MessageElement.java:783)
at org.apache.axis.SOAPPart.writeTo(SOAPPart.java:270)
at org.apache.axis.SOAPPart.getAsString(SOAPPart.java:483)
at org.apache.axis.SOAPPart.getAsBytes(SOAPPart.java:375)
at org.apache.axis.Message.getContentType(Message.java:399)
at
org.apache.axis.transport.http.HTTPSender.writeToSocket(HTTPSender.java:341)
at
org.apache.axis.transport.http.HTTPSender.invoke(HTTPSender.java:122)
at
org.apache.axis.strategies.InvocationStrategy.visit(InvocationStrategy.java:71)
at org.apache.axis.SimpleChain.doVisiting(SimpleChain.java:150)
at org.apache.axis.SimpleChain.invoke(SimpleChain.java:120)
at org.apache.axis.client.AxisClient.invoke(AxisClient.java:180)
at org.apache.axis.client.Call.invokeEngine(Call.java:2564)
at org.apache.axis.client.Call.invoke(Call.java:2553)
at org.apache.axis.client.Call.invoke(Call.java:2248)
at org.apache.axis.client.Call.invoke(Call.java:2171)
at org.apache.axis.client.Call.invoke(Call.java:1691)
at
localhost.axis.services.DataMarshallingService.DataMarshallingServiceSoapBindingStub.onMessage(DataMarshallingServiceSoapBindingStub.java:201)
at test.TestService.main(TestService.java:63)
AxisFault
faultCode:
{http://schemas.xmlsoap.org/soap/envelope/}Server.userException
faultSubcode:
faultString: java.io.IOException: java.lang.NullPointerException
faultActor:
faultNode:
faultDetail:
{http://xml.apache.org/axis/}stackTrace: java.io.IOException:
java.lang.NullPointerException
at
org.apache.axis.encoding.ser.BeanSerializer.serialize(BeanSerializer.java:262)
at
org.apache.axis.encoding.SerializationContextImpl.serializeActual(SerializationContextImpl.java:1255)
at
org.apache.axis.encoding.SerializationContextImpl.serialize(SerializationContextImpl.java:795)
at org.apache.axis.message.RPCParam.serialize(RPCParam.java:225)
at
org.apache.axis.message.RPCElement.outputImpl(RPCElement.java:387)
at
org.apache.axis.message.MessageElement.output(MessageElement.java:783)
at org.apache.axis.message.SOAPBody.outputImpl(SOAPBody.java:174)
at
org.apache.axis.message.SOAPEnvelope.outputImpl(SOAPEnvelope.java:509)
at
org.apache.axis.message.MessageElement.output(MessageElement.java:783)
at org.apache.axis.SOAPPart.writeTo(SOAPPart.java:270)
at org.apache.axis.SOAPPart.getAsString(SOAPPart.java:483)
at org.apache.axis.SOAPPart.getAsBytes(SOAPPart.java:375)
at org.apache.axis.Message.getContentType(Message.java:399)
at
org.apache.axis.transport.http.HTTPSender.writeToSocket(HTTPSender.java:341)
at
org.apache.axis.transport.http.HTTPSender.invoke(HTTPSender.java:122)
at
org.apache.axis.strategies.InvocationStrategy.visit(InvocationStrategy.java:71)
at org.apache.axis.SimpleChain.doVisiting(SimpleChain.java:150)
at org.apache.axis.SimpleChain.invoke(SimpleChain.java:120)
at org.apache.axis.client.AxisClient.invoke(AxisClient.java:180)
at org.apache.axis.client.Call.invokeEngine(Call.java:2564)
at org.apache.axis.client.Call.invoke(Call.java:2553)
at org.apache.axis.client.Call.invoke(Call.java:2248)
at org.apache.axis.client.Call.invoke(Call.java:2171)
at org.apache.axis.client.Call.invoke(Call.java:1691)
at
localhost.axis.services.DataMarshallingService.DataMarshallingServiceSoapBindingStub.onMessage(DataMarshallingServiceSoapBindingStub.java:201)
at test.TestService.main(TestService.java:63)
java.io.IOException: java.lang.NullPointerException
at org.apache.axis.AxisFault.makeFault(AxisFault.java:129)
at org.apache.axis.SOAPPart.writeTo(SOAPPart.java:272)
at org.apache.axis.SOAPPart.getAsString(SOAPPart.java:483)
at org.apache.axis.SOAPPart.getAsBytes(SOAPPart.java:375)
at org.apache.axis.Message.getContentType(Message.java:399)
at
org.apache.axis.transport.http.HTTPSender.writeToSocket(HTTPSender.java:341)
at
org.apache.axis.transport.http.HTTPSender.invoke(HTTPSender.java:122)
at
org.apache.axis.strategies.InvocationStrategy.visit(InvocationStrategy.java:71)
at org.apache.axis.SimpleChain.doVisiting(SimpleChain.java:150)
at org.apache.axis.SimpleChain.invoke(SimpleChain.java:120)
at org.apache.axis.client.AxisClient.invoke(AxisClient.java:180)
at org.apache.axis.client.Call.invokeEngine(Call.java:2564)
at org.apache.axis.client.Call.invoke(Call.java:2553)
at org.apache.axis.client.Call.invoke(Call.java:2248)
at org.apache.axis.client.Call.invoke(Call.java:2171)
at org.apache.axis.client.Call.invoke(Call.java:1691)
at
localhost.axis.services.DataMarshallingService.DataMarshallingServiceSoapBindingStub.onMessage(DataMarshallingServiceSoapBindingStub.java:201)
at test.TestService.main(TestService.java:63)
Caused by: java.io.IOException: java.lang.NullPointerException
at
org.apache.axis.encoding.ser.BeanSerializer.serialize(BeanSerializer.java:262)
at
org.apache.axis.encoding.SerializationContextImpl.serializeActual(SerializationContextImpl.java:1255)
at
org.apache.axis.encoding.SerializationContextImpl.serialize(SerializationContextImpl.java:795)
at org.apache.axis.message.RPCParam.serialize(RPCParam.java:225)
at
org.apache.axis.message.RPCElement.outputImpl(RPCElement.java:387)
at
org.apache.axis.message.MessageElement.output(MessageElement.java:783)
at org.apache.axis.message.SOAPBody.outputImpl(SOAPBody.java:174)
at
org.apache.axis.message.SOAPEnvelope.outputImpl(SOAPEnvelope.java:509)
at
org.apache.axis.message.MessageElement.output(MessageElement.java:783)
at org.apache.axis.SOAPPart.writeTo(SOAPPart.java:270)
... 16 more
