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https://issues.apache.org/jira/browse/AXIS2-1706?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel#action_12469810
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David R. Kraus commented on AXIS2-1706:
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I tried using RPCInOnlyMessageReceiver and now I am getting an error "Reason:
Incoming message input stream is null". I don't know where this is coming from.
There doesn't seem to be any exception stack trace anywhere. It does seem to be
happening after the function is over and it is returning back through Axis.
> Null pointer in RPCMessageReceiver. invokeBusinessLogic when QName is null
> for outAxisMessage when returning from void web service call.
> ----------------------------------------------------------------------------------------------------------------------------------------
>
> Key: AXIS2-1706
> URL: https://issues.apache.org/jira/browse/AXIS2-1706
> Project: Axis 2.0 (Axis2)
> Issue Type: Bug
> Components: rpc
> Affects Versions: 1.1
> Environment: Windows XP with Axis2 1.1 running under Tomcat 5.0.28.
> Also, using JDK 1.4.2_10.
> Reporter: David R. Kraus
> Assigned To: Deepal Jayasinghe
>
> Issue is logged as Major for now, but soon (1-2 months) we will go into
> production with this so this may become a Blocker for us. We need the ability
> to create web service API methods which do not return a value.
> Description:
> Simple Logout web service API method simply disconnects an application
> session and then experiences a null pointer exception when returning back
> through Axis layer. The Logout methout has no return value(void).
> Exception occurs on outaxismessage.getElementQName().getNamespaceURI() call
> because the element QName is null (RPCMessageReceiver. invokeBusinessLogic ).
> AxisMessage outaxisMessage =
> op.getMessage(WSDLConstants.MESSAGE_LABEL_OUT_VALUE);
> if (inAxisMessage != null) {
> messageNameSpace =
> outaxisMessage.getElementQName().getNamespaceURI(); //null pointer
> }
> Earlier in the method, inaxisMessage.getElementQName is checked for a null
> value, leading me to believe that the listed code is in error.
> Using Eclipse in debug mode, I skipped the offending code, and the operation
> finished with no error, leading me to believe that a simple check for null
> would work. Also, when I added a String return value to the method everything
> worked fine.
> Web Service method signature is:
> public void logout(String sessionState) throws Exception;
> ...and no value is returned.
> WSDL of the full Web Service follows. Logout is the method which causes the
> exception. Logout2 is the the exact same method with a String return value,
> which has no problem.
> ==============Start WSDL==========================
> <wsdl:definitions xmlns:axis2="http://ws.apache.org/axis2";
> xmlns:mime="http://schemas.xmlsoap.org/wsdl/mime/";
> xmlns:ns0="http://ws.apache.org/axis2/xsd";
> xmlns:soap12="http://schemas.xmlsoap.org/wsdl/soap12/";
> xmlns:http="http://schemas.xmlsoap.org/wsdl/http/";
> xmlns:ns1="http://org.apache.axis2/xsd";
> xmlns:xs="http://www.w3.org/2001/XMLSchema";
> xmlns:soap="http://schemas.xmlsoap.org/wsdl/soap/";
> xmlns:wsdl="http://schemas.xmlsoap.org/wsdl/";
> targetNamespace="http://ws.apache.org/axis2";><wsdl:documentation>WusfDemo</wsdl:documentation><wsdl:types><xs:schema
> xmlns:ns="http://ws.apache.org/axis2/xsd"; attributeFormDefault="qualified"
> elementFormDefault="qualified"
> targetNamespace="http://ws.apache.org/axis2/xsd";>
> <xs:element name="executeReportAsGraphFault">
> <xs:complexType>
> <xs:sequence>
> <xs:element name="executeReportAsGraphFault" type="xs:anyType" />
> </xs:sequence>
> </xs:complexType>
> </xs:element>
> <xs:element name="executeReportAsGraph">
> <xs:complexType>
> <xs:sequence>
> <xs:element name="sessionState" nillable="true" type="xs:string" />
> <xs:element name="reportName" nillable="true" type="xs:string" />
> <xs:element name="reportID" nillable="true" type="xs:string" />
> <xs:element name="resultFlags" nillable="true" type="xs:int" />
> </xs:sequence>
> </xs:complexType>
> </xs:element>
> <xs:element name="executeReportAsGraphResponse">
> <xs:complexType>
> <xs:sequence>
> <xs:element name="return" nillable="true" type="xs:string" />
> </xs:sequence>
> </xs:complexType>
> </xs:element>
> <xs:element name="executeReportAsGridFault">
> <xs:complexType>
> <xs:sequence>
> <xs:element name="executeReportAsGridFault" type="xs:anyType" />
> </xs:sequence>
> </xs:complexType>
> </xs:element>
> <xs:element name="executeReportAsGrid">
> <xs:complexType>
> <xs:sequence>
> <xs:element name="sessionState" nillable="true" type="xs:string" />
> <xs:element name="reportName" nillable="true" type="xs:string" />
> <xs:element name="reportID" nillable="true" type="xs:string" />
> <xs:element name="resultFlags" nillable="true" type="xs:int" />
> </xs:sequence>
> </xs:complexType>
> </xs:element>
> <xs:element name="executeReportAsGridResponse">
> <xs:complexType>
> <xs:sequence>
> <xs:element name="return" nillable="true" type="xs:string" />
> </xs:sequence>
> </xs:complexType>
> </xs:element>
> <xs:element name="loginFault">
> <xs:complexType>
> <xs:sequence>
> <xs:element name="loginFault" type="xs:anyType" />
> </xs:sequence>
> </xs:complexType>
> </xs:element>
> <xs:element name="login">
> <xs:complexType>
> <xs:sequence>
> <xs:element name="serverName" nillable="true" type="xs:string" />
> <xs:element name="projectName" nillable="true" type="xs:string" />
> <xs:element name="userName" nillable="true" type="xs:string" />
> <xs:element name="password" nillable="true" type="xs:string" />
> </xs:sequence>
> </xs:complexType>
> </xs:element>
> <xs:element name="loginResponse">
> <xs:complexType>
> <xs:sequence>
> <xs:element name="return" nillable="true" type="xs:string" />
> </xs:sequence>
> </xs:complexType>
> </xs:element>
> <xs:element name="logout2Fault">
> <xs:complexType>
> <xs:sequence>
> <xs:element name="logout2Fault" type="xs:anyType" />
> </xs:sequence>
> </xs:complexType>
> </xs:element>
> <xs:element name="logout2">
> <xs:complexType>
> <xs:sequence>
> <xs:element name="sessionState" nillable="true" type="xs:string" />
> </xs:sequence>
> </xs:complexType>
> </xs:element>
> <xs:element name="logout2Response">
> <xs:complexType>
> <xs:sequence>
> <xs:element name="return" nillable="true" type="xs:string" />
> </xs:sequence>
> </xs:complexType>
> </xs:element>
> <xs:element name="logoutFault">
> <xs:complexType>
> <xs:sequence>
> <xs:element name="logoutFault" type="xs:anyType" />
> </xs:sequence>
> </xs:complexType>
> </xs:element>
> <xs:element name="logout">
> <xs:complexType>
> <xs:sequence>
> <xs:element name="sessionState" nillable="true" type="xs:string" />
> </xs:sequence>
> </xs:complexType>
> </xs:element>
> </xs:schema></wsdl:types><wsdl:message
> name="executeReportAsGridMessage"><wsdl:part name="part1"
> element="ns0:executeReportAsGrid" /></wsdl:message><wsdl:message
> name="executeReportAsGridResponse"><wsdl:part name="part1"
> element="ns0:executeReportAsGridResponse" /></wsdl:message><wsdl:message
> name="executeReportAsGridFault"><wsdl:part name="part1"
> element="ns0:executeReportAsGridFault" /></wsdl:message><wsdl:message
> name="loginMessage"><wsdl:part name="part1" element="ns0:login"
> /></wsdl:message><wsdl:message name="loginResponse"><wsdl:part name="part1"
> element="ns0:loginResponse" /></wsdl:message><wsdl:message
> name="loginFault"><wsdl:part name="part1" element="ns0:loginFault"
> /></wsdl:message><wsdl:message name="logout2Message"><wsdl:part name="part1"
> element="ns0:logout2" /></wsdl:message><wsdl:message
> name="logout2Response"><wsdl:part name="part1" element="ns0:logout2Response"
> /></wsdl:message><wsdl:message name="logout2Fault"><wsdl:part name="part1"
> element="ns0:logout2Fault" /></wsdl:message><wsdl:message
> name="executeReportAsGraphMessage"><wsdl:part name="part1"
> element="ns0:executeReportAsGraph" /></wsdl:message><wsdl:message
> name="executeReportAsGraphResponse"><wsdl:part name="part1"
> element="ns0:executeReportAsGraphResponse" /></wsdl:message><wsdl:message
> name="executeReportAsGraphFault"><wsdl:part name="part1"
> element="ns0:executeReportAsGraphFault" /></wsdl:message><wsdl:message
> name="logoutMessage"><wsdl:part name="part1" element="ns0:logout"
> /></wsdl:message><wsdl:message name="logoutResponse" /><wsdl:message
> name="logoutFault"><wsdl:part name="part1" element="ns0:logoutFault"
> /></wsdl:message><wsdl:portType name="WusfDemoPortType"><wsdl:operation
> name="executeReportAsGrid"><wsdl:input
> xmlns:wsaw="http://www.w3.org/2006/05/addressing/wsdl";
> message="axis2:executeReportAsGridMessage"
> wsaw:Action="urn:executeReportAsGrid" /><wsdl:output
> message="axis2:executeReportAsGridResponse" /><wsdl:fault
> message="axis2:executeReportAsGridFault" name="executeReportAsGridFault"
> /></wsdl:operation><wsdl:operation name="login"><wsdl:input
> xmlns:wsaw="http://www.w3.org/2006/05/addressing/wsdl";
> message="axis2:loginMessage" wsaw:Action="urn:login" /><wsdl:output
> message="axis2:loginResponse" /><wsdl:fault message="axis2:loginFault"
> name="loginFault" /></wsdl:operation><wsdl:operation
> name="logout2"><wsdl:input
> xmlns:wsaw="http://www.w3.org/2006/05/addressing/wsdl";
> message="axis2:logout2Message" wsaw:Action="urn:logout2" /><wsdl:output
> message="axis2:logout2Response" /><wsdl:fault message="axis2:logout2Fault"
> name="logout2Fault" /></wsdl:operation><wsdl:operation
> name="executeReportAsGraph"><wsdl:input
> xmlns:wsaw="http://www.w3.org/2006/05/addressing/wsdl";
> message="axis2:executeReportAsGraphMessage"
> wsaw:Action="urn:executeReportAsGraph" /><wsdl:output
> message="axis2:executeReportAsGraphResponse" /><wsdl:fault
> message="axis2:executeReportAsGraphFault" name="executeReportAsGraphFault"
> /></wsdl:operation><wsdl:operation name="logout"><wsdl:input
> xmlns:wsaw="http://www.w3.org/2006/05/addressing/wsdl";
> message="axis2:logoutMessage" wsaw:Action="urn:logout" /><wsdl:output
> message="axis2:logoutResponse" /><wsdl:fault message="axis2:logoutFault"
> name="logoutFault" /></wsdl:operation></wsdl:portType><wsdl:binding
> name="WusfDemoSOAP11Binding" type="axis2:WusfDemoPortType"><soap:binding
> transport="http://schemas.xmlsoap.org/soap/http"; style="document"
> /><wsdl:operation name="executeReportAsGrid"><soap:operation
> soapAction="urn:executeReportAsGrid" style="document"
> /><wsdl:input><soap:body use="literal" /></wsdl:input><wsdl:output><soap:body
> use="literal" /></wsdl:output><wsdl:fault
> name="executeReportAsGridFault"><soap:body use="literal"
> /></wsdl:fault></wsdl:operation><wsdl:operation name="login"><soap:operation
> soapAction="urn:login" style="document" /><wsdl:input><soap:body
> use="literal" /></wsdl:input><wsdl:output><soap:body use="literal"
> /></wsdl:output><wsdl:fault name="loginFault"><soap:body use="literal"
> /></wsdl:fault></wsdl:operation><wsdl:operation
> name="logout2"><soap:operation soapAction="urn:logout2" style="document"
> /><wsdl:input><soap:body use="literal" /></wsdl:input><wsdl:output><soap:body
> use="literal" /></wsdl:output><wsdl:fault name="logout2Fault"><soap:body
> use="literal" /></wsdl:fault></wsdl:operation><wsdl:operation
> name="executeReportAsGraph"><soap:operation
> soapAction="urn:executeReportAsGraph" style="document"
> /><wsdl:input><soap:body use="literal" /></wsdl:input><wsdl:output><soap:body
> use="literal" /></wsdl:output><wsdl:fault
> name="executeReportAsGraphFault"><soap:body use="literal"
> /></wsdl:fault></wsdl:operation><wsdl:operation name="logout"><soap:operation
> soapAction="urn:logout" style="document" /><wsdl:input><soap:body
> use="literal" /></wsdl:input><wsdl:output><soap:body use="literal"
> /></wsdl:output><wsdl:fault name="logoutFault"><soap:body use="literal"
> /></wsdl:fault></wsdl:operation></wsdl:binding><wsdl:binding
> name="WusfDemoSOAP12Binding" type="axis2:WusfDemoPortType"><soap12:binding
> transport="http://schemas.xmlsoap.org/soap/http"; style="document"
> /><wsdl:operation name="executeReportAsGrid"><soap12:operation
> soapAction="urn:executeReportAsGrid" style="document"
> /><wsdl:input><soap12:body use="literal"
> /></wsdl:input><wsdl:output><soap12:body use="literal"
> /></wsdl:output><wsdl:fault name="executeReportAsGridFault"><soap12:fault
> use="literal" name="executeReportAsGridFault"
> /></wsdl:fault></wsdl:operation><wsdl:operation
> name="login"><soap12:operation soapAction="urn:login" style="document"
> /><wsdl:input><soap12:body use="literal"
> /></wsdl:input><wsdl:output><soap12:body use="literal"
> /></wsdl:output><wsdl:fault name="loginFault"><soap12:fault use="literal"
> name="loginFault" /></wsdl:fault></wsdl:operation><wsdl:operation
> name="logout2"><soap12:operation soapAction="urn:logout2" style="document"
> /><wsdl:input><soap12:body use="literal"
> /></wsdl:input><wsdl:output><soap12:body use="literal"
> /></wsdl:output><wsdl:fault name="logout2Fault"><soap12:fault use="literal"
> name="logout2Fault" /></wsdl:fault></wsdl:operation><wsdl:operation
> name="executeReportAsGraph"><soap12:operation
> soapAction="urn:executeReportAsGraph" style="document"
> /><wsdl:input><soap12:body use="literal"
> /></wsdl:input><wsdl:output><soap12:body use="literal"
> /></wsdl:output><wsdl:fault name="executeReportAsGraphFault"><soap12:fault
> use="literal" name="executeReportAsGraphFault"
> /></wsdl:fault></wsdl:operation><wsdl:operation
> name="logout"><soap12:operation soapAction="urn:logout" style="document"
> /><wsdl:input><soap12:body use="literal"
> /></wsdl:input><wsdl:output><soap12:body use="literal"
> /></wsdl:output><wsdl:fault name="logoutFault"><soap12:fault use="literal"
> name="logoutFault"
> /></wsdl:fault></wsdl:operation></wsdl:binding><wsdl:binding
> name="WusfDemoHttpBinding" type="axis2:WusfDemoPortType"><http:binding
> verb="POST" /><wsdl:operation name="executeReportAsGrid"><http:operation
> location="executeReportAsGrid" /><wsdl:input><mime:content type="text/xml"
> /></wsdl:input><wsdl:output><mime:content type="text/xml"
> /></wsdl:output></wsdl:operation><wsdl:operation name="login"><http:operation
> location="login" /><wsdl:input><mime:content type="text/xml"
> /></wsdl:input><wsdl:output><mime:content type="text/xml"
> /></wsdl:output></wsdl:operation><wsdl:operation
> name="logout2"><http:operation location="logout2" /><wsdl:input><mime:content
> type="text/xml" /></wsdl:input><wsdl:output><mime:content type="text/xml"
> /></wsdl:output></wsdl:operation><wsdl:operation
> name="executeReportAsGraph"><http:operation location="executeReportAsGraph"
> /><wsdl:input><mime:content type="text/xml"
> /></wsdl:input><wsdl:output><mime:content type="text/xml"
> /></wsdl:output></wsdl:operation><wsdl:operation
> name="logout"><http:operation location="logout" /><wsdl:input><mime:content
> type="text/xml" /></wsdl:input><wsdl:output><mime:content type="text/xml"
> /></wsdl:output></wsdl:operation></wsdl:binding><wsdl:service
> name="WusfDemo"><wsdl:port name="WusfDemoSOAP11port_http"
> binding="axis2:WusfDemoSOAP11Binding"><soap:address
> location="http://localhost:8080/axis2/services/WusfDemo";
> /></wsdl:port><wsdl:port name="WusfDemoSOAP12port_http"
> binding="axis2:WusfDemoSOAP12Binding"><soap12:address
> location="http://localhost:8080/axis2/services/WusfDemo";
> /></wsdl:port><wsdl:port name="WusfDemoHttpport1"
> binding="axis2:WusfDemoHttpBinding"><http:address
> location="http://localhost:8080/axis2/rest/WusfDemo";
> /></wsdl:port></wsdl:service></wsdl:definitions>
> =====================end WSDL==================
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