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Date: Wed, 31 Oct 2007 01:01:06 -0700 (PDT)
From: "Adrian Lang (JIRA)" <jira@apache.org>
To: axis-dev@ws.apache.org
Subject: [jira] Commented: (AXIS2-3293) NPE in AxisEngine when trying to use
 TCP transport
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    [ https://issues.apache.org/jira/browse/AXIS2-3293?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel#action_12539023 ] 

Adrian Lang commented on AXIS2-3293:
------------------------------------

I got the same problem: 

----
import org.apache.axis2.Constants;
import org.apache.axis2.description.TransportOutDescription;
import org.apache.log4j.Appender;
import org.apache.log4j.ConsoleAppender;
import org.apache.log4j.Logger;
import org.apache.log4j.PatternLayout;

import pcograb.service_wsdl.ServiceStub;
import pcograb.service_wsdl.ServiceStub.GetImage;
import pcograb.service_wsdl.ServiceStub.GetImageResponse;


public class pcoGrabClient {
    public static void main(String[] args) throws Exception {
        
    	Appender newAppender = new ConsoleAppender(new PatternLayout("%r [%t] %-5p %c - %m%n"));
    	
    	Logger.getRootLogger().addAppender(newAppender);    	
    	
        ServiceStub stub = new ServiceStub("tcp://pcograbber:5000");
        stub._getServiceClient().getOptions().setTransportOut(new TransportOutDescription(Constants.TRANSPORT_TCP));  
                
        //Create the request
        GetImage request = new GetImage();

        //Invoke the service
        GetImageResponse response = stub.getImage(request);

    }
}
----

----
<?xml version="1.0" encoding="UTF-8"?>
<definitions name="Service"
 targetNamespace="http://localhost:80/Service.wsdl"
 xmlns:tns="http://localhost:80/Service.wsdl"
 xmlns:SOAP-ENV="http://schemas.xmlsoap.org/soap/envelope/"
 xmlns:SOAP-ENC="http://schemas.xmlsoap.org/soap/encoding/"
 xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
 xmlns:xsd="http://www.w3.org/2001/XMLSchema"
 xmlns:pcoGrab="http://tempuri.org/pcoGrab.xsd"
 xmlns:SOAP="http://schemas.xmlsoap.org/wsdl/soap/"
 xmlns:MIME="http://schemas.xmlsoap.org/wsdl/mime/"
 xmlns:DIME="http://schemas.xmlsoap.org/ws/2002/04/dime/wsdl/"
 xmlns:WSDL="http://schemas.xmlsoap.org/wsdl/"
 xmlns="http://schemas.xmlsoap.org/wsdl/">

<types>

 <schema targetNamespace="http://tempuri.org/pcoGrab.xsd"
  xmlns:SOAP-ENV="http://schemas.xmlsoap.org/soap/envelope/"
  xmlns:SOAP-ENC="http://schemas.xmlsoap.org/soap/encoding/"
  xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
  xmlns:xsd="http://www.w3.org/2001/XMLSchema"
  xmlns:pcoGrab="http://tempuri.org/pcoGrab.xsd"
  xmlns="http://www.w3.org/2001/XMLSchema"
  elementFormDefault="unqualified"
  attributeFormDefault="unqualified">
  <import namespace="http://schemas.xmlsoap.org/soap/encoding/"/>
  <!-- operation request element -->
  <element name="getImage">
   <complexType>
    <sequence>
    </sequence>
   </complexType>
  </element>
  <!-- operation response element -->
  <element name="getImageResponse">
   <complexType>
    <sequence>
     <element name="result" type="xsd:int" minOccurs="0" maxOccurs="1" nillable="true"/>
    </sequence>
   </complexType>
  </element>
  <!-- operation request element -->
  <element name="setROI">
   <complexType>
    <sequence>
     <element name="width" type="xsd:int" minOccurs="1" maxOccurs="1"/>
     <element name="height" type="xsd:int" minOccurs="1" maxOccurs="1"/>
     <element name="offset-x" type="xsd:int" minOccurs="1" maxOccurs="1"/>
     <element name="offset-y" type="xsd:int" minOccurs="1" maxOccurs="1"/>
    </sequence>
   </complexType>
  </element>
  <!-- operation response element -->
  <element name="setROIResponse">
   <complexType>
    <sequence>
     <element name="result" type="xsd:int" minOccurs="0" maxOccurs="1" nillable="true"/>
    </sequence>
   </complexType>
  </element>
 </schema>

</types>

<message name="getImageRequest">
 <part name="parameters" element="pcoGrab:getImage"/>
</message>

<message name="getImageResponse">
 <part name="parameters" element="pcoGrab:getImageResponse"/>
</message>

<message name="setROIRequest">
 <part name="parameters" element="pcoGrab:setROI"/>
</message>

<message name="setROIResponse">
 <part name="parameters" element="pcoGrab:setROIResponse"/>
</message>

<portType name="ServicePortType">
 <operation name="getImage">
  <documentation>Service definition of function pcoGrab__getImage</documentation>
  <input message="tns:getImageRequest"/>
  <output message="tns:getImageResponse"/>
 </operation>
 <operation name="setROI">
  <documentation>Service definition of function pcoGrab__setROI</documentation>
  <input message="tns:setROIRequest"/>
  <output message="tns:setROIResponse"/>
 </operation>
</portType>

<binding name="Service" type="tns:ServicePortType">
 <SOAP:binding style="document" transport="http://schemas.xmlsoap.org/soap/http"/>
 <operation name="getImage">
  <SOAP:operation soapAction=""/>
  <input>
     <SOAP:body parts="parameters" use="literal"/>
  </input>
  <output>
     <SOAP:body parts="parameters" use="literal"/>
  </output>
 </operation>
 <operation name="setROI">
  <SOAP:operation soapAction=""/>
  <input>
     <SOAP:body parts="parameters" use="literal"/>
  </input>
  <output>
     <SOAP:body parts="parameters" use="literal"/>
  </output>
 </operation>
</binding>

<service name="Service">
 <documentation>gSOAP 2.7.9d generated service definition</documentation>
 <port name="Service" binding="tns:Service">
  <SOAP:address location="http://localhost:80"/>
 </port>
</service>

</definitions>
----

> NPE in AxisEngine when trying to use TCP transport
> --------------------------------------------------
>
>                 Key: AXIS2-3293
>                 URL: https://issues.apache.org/jira/browse/AXIS2-3293
>             Project: Axis 2.0 (Axis2)
>          Issue Type: Bug
>          Components: client-api
>    Affects Versions: 1.3
>            Reporter: dror yaffe
>
> Here is the excpetion:
> java.lang.NullPointerException
> 	at org.apache.axis2.engine.AxisEngine.send(AxisEngine.java:396)
> 	at org.apache.axis2.description.OutInAxisOperationClient.send(OutInAxisOperation.java:374)
> 	at org.apache.axis2.description.OutInAxisOperationClient.executeImpl(OutInAxisOperation.java:211)
> 	at org.apache.axis2.client.OperationClient.execute(OperationClient.java:163)
> 	at org.tempuri.KongServerHttpEndpointStub.Send(KongServerHttpEndpointStub.java:184)
> 	at org.tempuri.Main.doWork(Main.java:45)
> 	at org.tempuri.Main.main(Main.java:57)
> client code:
>  public void doWork() throws Exception{
>          String TARGET_END_POINT="tcp://127.0.0.1:8080/KongServerWebApplication/KongServerHttpEndpoint.asmx";		 
>          KongServerHttpEndpointStub stub = new KongServerHttpEndpointStub(TARGET_END_POINT);
>          EndpointReference target = new EndpointReference(TARGET_END_POINT);
>         Options options = new Options();
>         options.setTo(target);          
>         options.setSenderTransport(Constants.TRANSPORT_TCP, cfg);        
>         options.setTransportInProtocol(Constants.TRANSPORT_TCP);
>         TransportOutDescription x = new TransportOutDescription(Constants.TRANSPORT_TCP);
>         options.setTransportOut(x);
>         stub._getServiceClient().setOptions(options);
>       
>         
>         Send send = new Send();
> 		KongMessage msg= new KongMessage();       
>         send.setMessage(msg);
>         SendResponse res = stub.Send(send);
>         System.out.println("got res = "+res.getSendResult());
>      
> 	}
> I used AXIS2 eclipse plugin code generator, here is the KongServerHttpEndpoint.wsdl
> <?xml version="1.0" encoding="UTF-8"?>
> <wsdl:definitions targetNamespace="http://tempuri.org/" xmlns:soapenc="http://schemas.xmlsoap.org/soap/encoding/" xmlns:tm="http://microsoft.com/wsdl/mime/textMatching/" xmlns:s="http://www.w3.org/2001/XMLSchema" xmlns:wsdl="http://schemas.xmlsoap.org/wsdl/" xmlns:tns="http://tempuri.org/" xmlns:http="http://schemas.xmlsoap.org/wsdl/http/" xmlns:soap="http://schemas.xmlsoap.org/wsdl/soap/" xmlns:mime="http://schemas.xmlsoap.org/wsdl/mime/" xmlns:soap12="http://schemas.xmlsoap.org/wsdl/soap12/">
>   <wsdl:types>
>     <s:schema elementFormDefault="qualified" targetNamespace="http://tempuri.org/">
>       <s:element name="Send">
>         <s:complexType>
>           <s:sequence>
>             <s:element maxOccurs="1" minOccurs="0" name="message" type="tns:KongMessage"/>
>           </s:sequence>
>         </s:complexType>
>       </s:element>
>       <s:complexType name="KongMessage">
>         <s:sequence>
>           <s:element maxOccurs="1" minOccurs="0" name="OnBehalfOf" type="s:string"/>
>         </s:sequence>
>       </s:complexType>
>       <s:element name="SendResponse">
>         <s:complexType>
>           <s:sequence>
>             <s:element maxOccurs="1" minOccurs="1" name="SendResult" type="s:boolean"/>
>           </s:sequence>
>         </s:complexType>
>       </s:element>
>       <s:element name="Write">
>         <s:complexType/>
>       </s:element>
>       <s:element name="WriteResponse">
>         <s:complexType>
>           <s:sequence>
>             <s:element maxOccurs="1" minOccurs="1" name="WriteResult" type="s:boolean"/>
>           </s:sequence>
>         </s:complexType>
>       </s:element>
>     </s:schema>
>   </wsdl:types>
>   <wsdl:message name="WriteSoapOut">
>     <wsdl:part name="parameters" element="tns:WriteResponse">
>     </wsdl:part>
>   </wsdl:message>
>   <wsdl:message name="WriteSoapIn">
>     <wsdl:part name="parameters" element="tns:Write">
>     </wsdl:part>
>   </wsdl:message>
>   <wsdl:message name="SendSoapIn">
>     <wsdl:part name="parameters" element="tns:Send">
>     </wsdl:part>
>   </wsdl:message>
>   <wsdl:message name="SendSoapOut">
>     <wsdl:part name="parameters" element="tns:SendResponse">
>     </wsdl:part>
>   </wsdl:message>
>   <wsdl:portType name="KongServerHttpEndpointSoap">
>     <wsdl:operation name="Send">
>       <wsdl:input message="tns:SendSoapIn">
>     </wsdl:input>
>       <wsdl:output message="tns:SendSoapOut">
>     </wsdl:output>
>     </wsdl:operation>
>     <wsdl:operation name="Write">
>       <wsdl:input message="tns:WriteSoapIn">
>     </wsdl:input>
>       <wsdl:output message="tns:WriteSoapOut">
>     </wsdl:output>
>     </wsdl:operation>
>   </wsdl:portType>
>   <wsdl:binding name="KongServerHttpEndpointSoap" type="tns:KongServerHttpEndpointSoap">
>     <soap:binding transport="http://schemas.xmlsoap.org/soap/http"/>
>     <wsdl:operation name="Send">
>       <soap:operation soapAction="http://tempuri.org/Send" style="document"/>
>       <wsdl:input>
>         <soap:body use="literal"/>
>       </wsdl:input>
>       <wsdl:output>
>         <soap:body use="literal"/>
>       </wsdl:output>
>     </wsdl:operation>
>     <wsdl:operation name="Write">
>       <soap:operation soapAction="http://tempuri.org/Write" style="document"/>
>       <wsdl:input>
>         <soap:body use="literal"/>
>       </wsdl:input>
>       <wsdl:output>
>         <soap:body use="literal"/>
>       </wsdl:output>
>     </wsdl:operation>
>   </wsdl:binding>
>   <wsdl:binding name="KongServerHttpEndpointSoap12" type="tns:KongServerHttpEndpointSoap">
>     <soap12:binding transport="http://schemas.xmlsoap.org/soap/http"/>
>     <wsdl:operation name="Send">
>       <soap12:operation soapAction="http://tempuri.org/Send" style="document"/>
>       <wsdl:input>
>         <soap12:body use="literal"/>
>       </wsdl:input>
>       <wsdl:output>
>         <soap12:body use="literal"/>
>       </wsdl:output>
>     </wsdl:operation>
>     <wsdl:operation name="Write">
>       <soap12:operation soapAction="http://tempuri.org/Write" style="document"/>
>       <wsdl:input>
>         <soap12:body use="literal"/>
>       </wsdl:input>
>       <wsdl:output>
>         <soap12:body use="literal"/>
>       </wsdl:output>
>     </wsdl:operation>
>   </wsdl:binding>
>   <wsdl:service name="KongServerHttpEndpoint">
>     <wsdl:port name="KongServerHttpEndpointSoap12" binding="tns:KongServerHttpEndpointSoap12">
>       <soap12:address location="http://localhost/KongServerWebApplication/KongServerHttpEndpoint.asmx"/>
>     </wsdl:port>
>     <wsdl:port name="KongServerHttpEndpointSoap" binding="tns:KongServerHttpEndpointSoap">
>       <soap:address location="http://localhost/KongServerWebApplication/KongServerHttpEndpoint.asmx"/>
>     </wsdl:port>
>   </wsdl:service>
> </wsdl:definitions>

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