Consume a Web Service from a Web Page

I had tried out the Tutorial "Consume a Web Service from a Web Page". I have encountered this error :
; nested exception is: java.lang.NullPointerException.
oracle.adf.model.adapter.AdapterException: DCA-40010: The Web Service call failed. The service returned a SOAP fault with the message: [S:Receiver] EJB Exception: : java.lang.NullPointerException
     at oracle.model.freightjb.CalculateFreightBean.calculateFreightCost(CalculateFreightBean.java:23)
     at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
     at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
     at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
     at java.lang.reflect.Method.invoke(Method.java:597)
     at com.bea.core.repackaged.springframework.aop.support.AopUtils.invokeJoinpointUsingReflection(AopUtils.java:310)
     at com.bea.core.repackaged.springframework.aop.framework.ReflectiveMethodInvocation.invokeJoinpoint(ReflectiveMethodInvocation.java:182)
     at com.bea.core.repackaged.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:149)
     at com.bea.core.repackaged.springframework.aop.support.DelegatingIntroductionInterceptor.doProceed(DelegatingIntroductionInterceptor.java:131)
     at com.bea.core.repackaged.springframework.aop.support.DelegatingIntroductionInterceptor.invoke(DelegatingIntroductionInterceptor.java:119)
     at com.bea.core.repackaged.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:171)
     at com.bea.core.repackaged.springframework.jee.spi.MethodInvocationVisitorImpl.visit(MethodInvocationVisitorImpl.java:37)
     at weblogic.ejb.container.injection.EnvironmentInterceptorCallbackImpl.callback(EnvironmentInterceptorCallbackImpl.java:55)
     at com.bea.core.repackaged.springframework.jee.spi.EnvironmentInterceptor.invoke(EnvironmentInterceptor.java:50)
     at com.bea.core.repackaged.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:171)
     at com.bea.core.repackaged.springframework.aop.interceptor.ExposeInvocationInterceptor.invoke(ExposeInvocationInterceptor.java:89)
     at com.bea.core.repackaged.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:171)
     at com.bea.core.repackaged.springframework.aop.support.DelegatingIntroductionInterceptor.doProceed(DelegatingIntroductionInterceptor.java:131)
     at com.bea.core.repackaged.springframework.aop.support.DelegatingIntroductionInterceptor.invoke(DelegatingIntroductionInterceptor.java:119)
     at com.bea.core.repackaged.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:171)
     at com.bea.core.repackaged.springframework.aop.framework.JdkDynamicAopProxy.invoke(JdkDynamicAopProxy.java:204)
     at $Proxy170.calculateFreightCost(Unknown Source)
     at oracle.model.freightjb.CalculateFreight_5vfuh6_WSOImpl.__WL_calculateFreightCost_WS(CalculateFreight_5vfuh6_WSOImpl.java:72)
     at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
     at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
I tried to modify abit the code as i changed the web method parameter from object (BatchOrder order) to variables(eg. int) and it works. When I test the Web Services I need to select the include checkbox den it works nicely else i will also encounter this problem. Does this mean the web services can not take it object as parameter?

Hi Paolo,
maybe I faced the same issue. I solved it reading the thread:
web service deployable client
Hope this help
Cheers
Roberto

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Hi All – We have a web service running on ARSystem (
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-Send some parameters in a method call for ‘Remedy
WS’
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The WSDL looks like this..
<?xml version="1.0" encoding="UTF-8" ?>
- <wsdl:definitions
targetNamespace="urn:CHG_Change_WebService_OpCreate_DisplayOnly_v2"
xmlns="
http://schemas.xmlsoap.org/wsdl/"
xmlns:s="urn:CHG_Change_WebService_OpCreate_DisplayOnly_v2"
xmlns:soap="
http://schemas.xmlsoap.org/wsdl/soap/"
xmlns:soapenc="
http://schemas.xmlsoap.org/soap/encoding/"
xmlns:wsdl="
http://schemas.xmlsoap.org/wsdl/"
xmlns:xsd="
http://www.w3.org/2001/XMLSchema">
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- <xsd:schema elementFormDefault="qualified"
targetNamespace="urn:CHG_Change_WebService_OpCreate_DisplayOnly_v2">
<xsd:element name="OpCreate" type="s:CreateInputMap"
/>
- <xsd:complexType name="CreateInputMap">
- <xsd:sequence>
<xsd:element name="Description" type="xsd:string" />
<xsd:element name="Requester_Login_Name"
type="xsd:string" />
<xsd:element name="Requester_Name" type="xsd:string"
/>
</xsd:sequence>
</xsd:complexType>
<xsd:element name="OpCreateResponse"
type="s:CreateOutputMap" />
- <xsd:complexType name="CreateOutputMap">
<xsd:sequence />
</xsd:complexType>
<xsd:element name="AuthenticationInfo"
type="s:AuthenticationInfo" />
- <xsd:complexType name="AuthenticationInfo">
- <xsd:sequence>
<xsd:element name="userName" type="xsd:string" />
<xsd:element name="password" type="xsd:string" />
<xsd:element minOccurs="0" name="authentication"
type="xsd:string" />
<xsd:element minOccurs="0" name="locale"
type="xsd:string" />
<xsd:element minOccurs="0" name="timeZone"
type="xsd:string" />
</xsd:sequence>
</xsd:complexType>
</xsd:schema>
</wsdl:types>
- <wsdl:message name="OpCreateSoapOut">
<wsdl:part element="s:OpCreateResponse" name="parameters"
/>
</wsdl:message>
- <wsdl:message name="ARAuthenticate">
<wsdl:part element="s:AuthenticationInfo"
name="parameters" />
</wsdl:message>
- <wsdl:message name="OpCreateSoapIn">
<wsdl:part element="s:OpCreate" name="parameters" />
</wsdl:message>
- <wsdl:portType
name="CHG_Change_WebService_OpCreate_DisplayOnly_v2PortType">
- <wsdl:operation name="OpCreate">
<wsdl:input message="s:OpCreateSoapIn" />
<wsdl:output message="s:OpCreateSoapOut" />
</wsdl:operation>
</wsdl:portType>
- <wsdl:binding
name="CHG_Change_WebService_OpCreate_DisplayOnly_v2SoapBinding"
type="s:CHG_Change_WebService_OpCreate_DisplayOnly_v2PortType">
<soap:binding style="document" transport="
http://schemas.xmlsoap.org/soap/http"
/>
- <wsdl:operation name="OpCreate">
<soap:operation
soapAction="urn:CHG_Change_WebService_OpCreate_DisplayOnly_v2/OpCreate"
style="document" />
- <wsdl:input>
<soap:header message="s:ARAuthenticate" part="parameters"
use="literal" />
<soap:body use="literal" />
</wsdl:input>
- <wsdl:output>
<soap:body use="literal" />
</wsdl:output>
</wsdl:operation>
</wsdl:binding>
- <wsdl:service
name="CHG_Change_WebService_OpCreate_DisplayOnly_v2Service">
- <wsdl:port
binding="s:CHG_Change_WebService_OpCreate_DisplayOnly_v2SoapBinding"
name="CHG_Change_WebService_OpCreate_DisplayOnly_v2Soap">
<soap:address location="
http://<ServerName>/arsys/services/ARService?server=<ServerName>&webService=CHG_Change_Web Service_OpCreate_DisplayOnly_v2"
/>
</wsdl:port>
</wsdl:service>
</wsdl:definitions>
My CF invocation is as given below..
<cfscript>
Ws=CreateObject("webservice","
http://<servername>/arsys/WSDL/public/<servername>/CHG_Change_WebService_OpCreate_DisplayO nly_v2");
result= ws.opCreate("test1","TEST2","test3");
</cfscript>
<cfoutput>|#result#|</cfoutput>
AND I am getting this error below..
Could not generate stub objects for web service invocation.
Name:
http://<servername>/arsys/WSDL/public/<servername>/CHG_Change_WebService_OpCreate_DisplayO nly_v2.
WSDL:
http://
<servername>/arsys/WSDL/public/<servername>/CHG_Change_WebService_OpCreate_DisplayOnly_v2 .
java.lang.NullPointerException It is recommended that you use a web
browser to retrieve and examine the requested WSDL document for
correctness. If the requested WSDL document can't be retrieved or
it is dynamically generated, it is likely that the target web
service has programming errors.
Java Stack trace:
java.lang.NullPointerException
at
org.apache.axis.wsdl.toJava.Utils.getNewQNameWithLastLocalPart(Utils.java:933)
at
org.apache.axis.wsdl.toJava.JavaStubWriter.writeOperationMap(JavaStubWriter.java:610)
at
org.apache.axis.wsdl.toJava.JavaStubWriter.writeFileBody(JavaStubWriter.java:169)
at
org.apache.axis.wsdl.toJava.JavaWriter.generate(JavaWriter.java:130)
at
org.apache.axis.wsdl.toJava.JavaBindingWriter.generate(JavaBindingWriter.java:147)
at
org.apache.axis.wsdl.toJava.JavaGeneratorFactory$Writers.generate(JavaGeneratorFactory.ja va:423)
at org.apache.axis.wsdl.gen.Parser.generate(Parser.java:471)
at org.apache.axis.wsdl.gen.Parser.run(Parser.java:395)
at org.apache.axis.wsdl.toJava.Emitter.run(Emitter.java:611)
at
coldfusion.xml.rpc.XmlRpcServiceImpl$1.run(XmlRpcServiceImpl.java:213)
at java.security.AccessController.doPrivileged(Native
Method)
at
coldfusion.xml.rpc.XmlRpcServiceImpl.registerWebService(XmlRpcServiceImpl.java:198)
at
coldfusion.xml.rpc.XmlRpcServiceImpl.getWebService(XmlRpcServiceImpl.java:472)
at
coldfusion.xml.rpc.XmlRpcServiceImpl.getWebServiceProxy(XmlRpcServiceImpl.java:427)
at
coldfusion.xml.rpc.XmlRpcServiceImpl.getWebServiceProxy(XmlRpcServiceImpl.java:409)
at coldfusion.runtime.CFPage.createObject(CFPage.java:5993)
at coldfusion.runtime.CFPage.CreateObject(CFPage.java:5848)
at coldfusion.runtime.CFPage.CreateObject(CFPage.java:5813)
at
cftest1252ecfm1199621501.runPage(D:\Inetpub\wwwroot\Pearsontc\sandytest\test125.cfm:11)
at coldfusion.runtime.CfJspPage.invoke(CfJspPage.java:152)
at
coldfusion.tagext.lang.IncludeTag.doStartTag(IncludeTag.java:343)
at
coldfusion.filter.CfincludeFilter.invoke(CfincludeFilter.java:65)
at
coldfusion.filter.ApplicationFilter.invoke(ApplicationFilter.java:210)
at
coldfusion.filter.RequestMonitorFilter.invoke(RequestMonitorFilter.java:51)
at coldfusion.filter.PathFilter.invoke(PathFilter.java:86)
at
coldfusion.filter.ExceptionFilter.invoke(ExceptionFilter.java:50)
at
coldfusion.filter.ClientScopePersistenceFilter.invoke(ClientScopePersistenceFilter.java:2 8)
at
coldfusion.filter.BrowserFilter.invoke(BrowserFilter.java:38)
at
coldfusion.filter.GlobalsFilter.invoke(GlobalsFilter.java:38)
at
coldfusion.filter.DatasourceFilter.invoke(DatasourceFilter.java:22)
at coldfusion.CfmServlet.service(CfmServlet.java:105)
at
coldfusion.bootstrap.BootstrapServlet.service(BootstrapServlet.java:78)
at
jrun.servlet.ServletInvoker.invoke(ServletInvoker.java:91)
at
jrun.servlet.JRunInvokerChain.invokeNext(JRunInvokerChain.java:42)
at
jrun.servlet.JRunRequestDispatcher.invoke(JRunRequestDispatcher.java:257)
at
jrun.servlet.ServletEngineService.dispatch(ServletEngineService.java:527)
at
jrun.servlet.jrpp.JRunProxyService.invokeRunnable(JRunProxyService.java:204)
at
jrunx.scheduler.ThreadPool$DownstreamMetrics.invokeRunnable(ThreadPool.java:349)
at
jrunx.scheduler.ThreadPool$ThreadThrottle.invokeRunnable(ThreadPool.java:457)
at
jrunx.scheduler.ThreadPool$UpstreamMetrics.invokeRunnable(ThreadPool.java:295)
at jrunx.scheduler.WorkerThread.run(WorkerThread.java:66)
Would be sincerely thankful to ALL who could help me in
resolving my problem as it’s a deadline for me today and I
have some testing left to be done on some other modules as well.
PLEASE PLEASE HELP!!
Thanks.
-S

Ian, Thanks but service is running on REMEDY system and is
written in Java. The new wsdl looks like this..( Please check the
complex type input and return parameter). I cannot change the
service permissions as its not in our control
http://oldtas184/arsys/WSDL/
<?xml version="1.0" encoding="UTF-8" ?>
- <wsdl:definitions
targetNamespace="urn:CHG_Change_WebService_OpCreate_DisplayOnly_v2"
xmlns="
http://schemas.xmlsoap.org/wsdl/"
xmlns:s="urn:CHG_Change_WebService_OpCreate_DisplayOnly_v2"
xmlns:soap="
http://schemas.xmlsoap.org/wsdl/soap/"
xmlns:soapenc="
http://schemas.xmlsoap.org/soap/encoding/"
xmlns:wsdl="
http://schemas.xmlsoap.org/wsdl/"
xmlns:xsd="
http://www.w3.org/2001/XMLSchema">
- <wsdl:types>
- <xsd:schema elementFormDefault="qualified"
targetNamespace="urn:CHG_Change_WebService_OpCreate_DisplayOnly_v2">
<xsd:element name="OpCreate" type="s:CreateInputMap"
/>
- <xsd:complexType name="CreateInputMap">
- <xsd:sequence>
<xsd:element name="Description" type="xsd:string" />
<xsd:element name="Requester_Login_Name"
type="xsd:string" />
<xsd:element name="Requester_Name" type="xsd:string"
/>
</xsd:sequence>
</xsd:complexType>
<xsd:element name="OpCreateResponse"
type="s:CreateOutputMap" />
- <xsd:complexType name="CreateOutputMap">
- <xsd:sequence>
<xsd:element name="Description" type="xsd:string" />
<xsd:element name="Requester_Login_Name"
type="xsd:string" />
<xsd:element name="Requester_Name" type="xsd:string"
/>
</xsd:sequence>
</xsd:complexType>
<xsd:element name="AuthenticationInfo"
type="s:AuthenticationInfo" />
- <xsd:complexType name="AuthenticationInfo">
- <xsd:sequence>
<xsd:element name="userName" type="xsd:string" />
<xsd:element name="password" type="xsd:string" />
<xsd:element minOccurs="0" name="authentication"
type="xsd:string" />
<xsd:element minOccurs="0" name="locale"
type="xsd:string" />
<xsd:element minOccurs="0" name="timeZone"
type="xsd:string" />
</xsd:sequence>
</xsd:complexType>
</xsd:schema>
</wsdl:types>
- <wsdl:message name="OpCreateSoapOut">
<wsdl:part element="s:OpCreateResponse" name="parameters"
/>
</wsdl:message>
- <wsdl:message name="ARAuthenticate">
<wsdl:part element="s:AuthenticationInfo"
name="parameters" />
</wsdl:message>
- <wsdl:message name="OpCreateSoapIn">
<wsdl:part element="s:OpCreate" name="parameters" />
</wsdl:message>
- <wsdl:portType
name="CHG_Change_WebService_OpCreate_DisplayOnly_v2PortType">
- <wsdl:operation name="OpCreate">
<wsdl:input message="s:OpCreateSoapIn" />
<wsdl:output message="s:OpCreateSoapOut" />
</wsdl:operation>
</wsdl:portType>
- <wsdl:binding
name="CHG_Change_WebService_OpCreate_DisplayOnly_v2SoapBinding"
type="s:CHG_Change_WebService_OpCreate_DisplayOnly_v2PortType">
<soap:binding style="document" transport="
http://schemas.xmlsoap.org/soap/http"
/>
- <wsdl:operation name="OpCreate">
<soap:operation
soapAction="urn:CHG_Change_WebService_OpCreate_DisplayOnly_v2/OpCreate"
style="document" />
- <wsdl:input>
<soap:header message="s:ARAuthenticate" part="parameters"
use="literal" />
<soap:body use="literal" />
</wsdl:input>
- <wsdl:output>
<soap:body use="literal" />
</wsdl:output>
</wsdl:operation>
</wsdl:binding>
- <wsdl:service
name="CHG_Change_WebService_OpCreate_DisplayOnly_v2Service">
- <wsdl:port
binding="s:CHG_Change_WebService_OpCreate_DisplayOnly_v2SoapBinding"
name="CHG_Change_WebService_OpCreate_DisplayOnly_v2Soap">
<soap:address location="
http://oldtas184/arsys/services/ARService?server=OLDTAS184&webService=CHG_Change_WebServic e_OpCreate_DisplayOnly_v2"
/>
</wsdl:port>
</wsdl:service>
</wsdl:definitions>
I have modified my code a little to use a struct object and
the code looks as below..
<cfscript> CreateInputMap1 = structNew();
CreateInputMap1.Description = "test";
CreateInputMap1.Requester_Login_Name = "xxxxxx";
CreateInputMap1.Requester_Name = "yyyyyyy";
ws=CreateObject("webservice","
http://oldtas184/arsys/WSDL/public/OLDTAS184/CHG_Change_WebService_OpCreate_DisplayOnly_v2 ?wsdl");
result= ws.opCreate(CreateInputMap1);
</cfscript>
<cfoutput>#result#</cfoutput>
But I still receive the same error..
Error Occurred While Processing Request
Could not generate stub objects for web service invocation.
Name:
http://oldtas184/arsys/WSDL/public/OLDTAS184/CHG_Change_WebService_OpCreate_DisplayOnly_v2 ?wsdl.
WSDL:
http://oldtas184/arsys/WSDL/public/OLDTAS184/CHG_Change_WebService_OpCreate_DisplayOnly_v2 ?wsdl.
java.lang.NullPointerException It is recommended that you use a web
browser to retrieve and examine the requested WSDL document for
correctness. If the requested WSDL document can't be retrieved or
it is dynamically generated, it is likely that the target web
service has programming errors.
The error occurred in
D:\Inetpub\wwwroot\Pearsontc\sandytest\test125.cfm: line 18
16 : CreateInputMap1.Requester_Name = "Vohra";
17 :
18 : ws=CreateObject("webservice","
http://oldtas184/arsys/WSDL/public/OLDTAS184/CHG_Change_WebService_OpCreate_DisplayOnly_v2 ?wsdl");
19 : // addSOAPRequestHeader(ws, "
http://oldtas184/arsys/WSDL/public/OLDTAS184/CHG_Change_WebService_OpCreate_DisplayOnly_v2 /",
"Description", "test", false);
20 : // addSOAPRequestHeader(ws, "
http://oldtas184/arsys/WSDL/public/OLDTAS184/CHG_Change_WebService_OpCreate_DisplayOnly_v2 /",
"Requester_Login_Name", "John", false);
Stack Trace (click to expand)
at
cftest1252ecfm1199621501.runPage(D:\Inetpub\wwwroot\Pearsontc\sandytest\test125.cfm:18)
at
cftest1252ecfm1199621501.runPage(D:\Inetpub\wwwroot\Pearsontc\sandytest\test125.cfm:18)
java.lang.NullPointerException
at
org.apache.axis.wsdl.toJava.Utils.getNewQNameWithLastLocalPart(Utils.java:933)
at
org.apache.axis.wsdl.toJava.JavaStubWriter.writeOperationMap(JavaStubWriter.java:610)
at
org.apache.axis.wsdl.toJava.JavaStubWriter.writeFileBody(JavaStubWriter.java:169)
at org.apache.axis.wsdl.toJava.JavaWriter.generate
The REMEDY logs has this message - "Required element expected
in the input XML document":

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