0 Replies Latest reply on Jul 10, 2007 7:06 AM by ram_kumar

Please help, its urgent (BPEL involving call to a service in

ram_kumar Jul 10, 2007 7:06 AM

Hi,

I get the following error when one webservice residing in the service mix called by another one which is a bpel application.

16:18:41,869 ERROR [StartListener] could not start process instance
org.jbpm.graph.def.DelegationException
 at org.jbpm.graph.def.GraphElement.raiseException(GraphElement.java:367)
 at org.jbpm.graph.def.GraphElement.raiseException(GraphElement.java:358)
 at org.jbpm.graph.def.GraphElement.raiseException(GraphElement.java:358)
 at sun.reflect.GeneratedMethodAccessor98.invoke(Unknown Source)
 at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
 at java.lang.reflect.Method.invoke(Method.java:585)
 at org.hibernate.proxy.pojo.cglib.CGLIBLazyInitializer.invoke(CGLIBLazyInitializer.java:185)
 at org.jbpm.bpel.graph.def.CompositeActivity$$EnhancerByCGLIB$$6b1056f4.raiseException(<generated>)
 at org.jbpm.graph.def.GraphElement.raiseException(GraphElement.java:358)
 at org.jbpm.graph.def.GraphElement.raiseException(GraphElement.java:358)
 at org.jbpm.bpel.graph.def.Activity.enter(Activity.java:110)
 at sun.reflect.GeneratedMethodAccessor96.invoke(Unknown Source)
 at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
 at java.lang.reflect.Method.invoke(Method.java:585)
 at org.hibernate.proxy.pojo.cglib.CGLIBLazyInitializer.invoke(CGLIBLazyInitializer.java:185)
 at org.jbpm.graph.def.Node$$EnhancerByCGLIB$$4e41da69.enter(<generated>)
 at org.jbpm.graph.def.Transition.take(Transition.java:151)
 at org.jbpm.graph.def.Node.leave(Node.java:393)
 at org.jbpm.bpel.graph.def.Activity.leave(Activity.java:184)
 at org.jbpm.bpel.graph.basic.Assign.execute(Assign.java:55)
 at org.jbpm.bpel.graph.def.Activity.enter(Activity.java:105)
 at sun.reflect.GeneratedMethodAccessor96.invoke(Unknown Source)
 at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
 at java.lang.reflect.Method.invoke(Method.java:585)
 at org.hibernate.proxy.pojo.cglib.CGLIBLazyInitializer.invoke(CGLIBLazyInitializer.java:185)
 at org.jbpm.graph.def.Node$$EnhancerByCGLIB$$4e41da69.enter(<generated>)
 at org.jbpm.graph.def.Transition.take(Transition.java:151)
 at org.jbpm.graph.def.Node.leave(Node.java:393)
 at org.jbpm.bpel.graph.def.Activity.leave(Activity.java:184)
 at org.jbpm.bpel.graph.basic.Invoke.execute(Invoke.java:47)
 at org.jbpm.bpel.graph.def.Activity.enter(Activity.java:105)
 at sun.reflect.GeneratedMethodAccessor96.invoke(Unknown Source)
 at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
 at java.lang.reflect.Method.invoke(Method.java:585)
 at org.hibernate.proxy.pojo.cglib.CGLIBLazyInitializer.invoke(CGLIBLazyInitializer.java:185)
 at org.jbpm.graph.def.Node$$EnhancerByCGLIB$$4e41da69.enter(<generated>)
 at org.jbpm.graph.def.Transition.take(Transition.java:151)
 at org.jbpm.graph.def.Node.leave(Node.java:393)
 at org.jbpm.bpel.graph.def.Activity.leave(Activity.java:184)
 at org.jbpm.bpel.graph.basic.Assign.execute(Assign.java:55)
 at org.jbpm.bpel.graph.def.Activity.enter(Activity.java:105)
 at sun.reflect.GeneratedMethodAccessor96.invoke(Unknown Source)
 at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
 at java.lang.reflect.Method.invoke(Method.java:585)
 at org.hibernate.proxy.pojo.cglib.CGLIBLazyInitializer.invoke(CGLIBLazyInitializer.java:185)
 at org.jbpm.graph.def.Node$$EnhancerByCGLIB$$4e41da69.enter(<generated>)
 at org.jbpm.graph.def.Transition.take(Transition.java:151)
 at org.jbpm.graph.def.Node.leave(Node.java:393)
 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:585)
 at org.hibernate.proxy.pojo.cglib.CGLIBLazyInitializer.invoke(CGLIBLazyInitializer.java:185)
 at org.jbpm.bpel.graph.struct.StructuredActivity$Begin$$EnhancerByCGLIB$$8749bd97.leave(<generated>)
 at org.jbpm.bpel.graph.struct.StructuredActivity.execute(StructuredActivity.java:58)
 at org.jbpm.bpel.graph.struct.StructuredActivity$Begin.leave(StructuredActivity.java:222)
 at org.jbpm.graph.def.Node.execute(Node.java:349)
 at org.jbpm.bpel.graph.def.Activity.enter(Activity.java:105)
 at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
 at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
 at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
 at java.lang.reflect.Method.invoke(Method.java:585)
 at org.hibernate.proxy.pojo.cglib.CGLIBLazyInitializer.invoke(CGLIBLazyInitializer.java:185)
 at org.jbpm.bpel.graph.struct.StructuredActivity$Begin$$EnhancerByCGLIB$$8749bd97.enter(<generated>)
 at org.jbpm.graph.def.Transition.take(Transition.java:151)
 at org.jbpm.graph.def.Node.leave(Node.java:393)
 at org.jbpm.bpel.graph.def.Activity.leave(Activity.java:184)
 at org.jbpm.bpel.graph.struct.ProcessInstanceStarter.visit(ProcessInstanceStarter.java:66)
 at org.jbpm.bpel.graph.basic.Receive.accept(Receive.java:81)
 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:585)
 at org.hibernate.proxy.pojo.cglib.CGLIBLazyInitializer.invoke(CGLIBLazyInitializer.java:185)
 at org.jbpm.bpel.graph.basic.Receive$$EnhancerByCGLIB$$7b6128d6.accept(<generated>)
 at org.jbpm.bpel.graph.struct.ProcessInstanceStarter.visit(ProcessInstanceStarter.java:100)
 at org.jbpm.bpel.graph.struct.Sequence.accept(Sequence.java:104)
 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:585)
 at org.hibernate.proxy.pojo.cglib.CGLIBLazyInitializer.invoke(CGLIBLazyInitializer.java:185)
 at org.jbpm.bpel.graph.def.Activity$$EnhancerByCGLIB$$87daeca1.accept(<generated>)
 at org.jbpm.bpel.graph.struct.ProcessInstanceStarter.visit(ProcessInstanceStarter.java:54)
 at org.jbpm.bpel.graph.def.BpelDefinition.messageReceived(BpelDefinition.java:111)
 at org.jbpm.bpel.integration.jms.StartListener.onMessage(StartListener.java:124)
 at org.jboss.mq.SpyMessageConsumer.run(SpyMessageConsumer.java:696)
 at java.lang.Thread.run(Thread.java:595)
Caused by: java.lang.NullPointerException
 at org.jbpm.bpel.integration.client.SoapClient.writeDocumentPart(SoapClient.java:304)
 at org.jbpm.bpel.integration.client.SoapClient.writeDocumentBody(SoapClient.java:276)
 at org.jbpm.bpel.integration.client.SoapClient.writeMessage(SoapClient.java:196)
 at org.jbpm.bpel.integration.client.SoapClient.callImpl(SoapClient.java:143)
 at org.jbpm.bpel.integration.client.SoapClient.call(SoapClient.java:111)
 at org.jbpm.bpel.integration.jms.JmsIntegrationService.invoke(JmsIntegrationService.java:242)
 at org.jbpm.bpel.graph.basic.Invoke.execute(Invoke.java:46)
 at org.jbpm.bpel.graph.def.Activity.enter(Activity.java:105)
 ... 77 more

The first service calls another ordinary service (fileread) and also another service (ftpinput) which is in service mix.

The bpel file is given below.

<?xml version="1.0" encoding="UTF-8"?>
<process name="BatchProductBusiness" targetNamespace="http://blwb.abc.com/getGlobalService"
 xmlns="http://schemas.xmlsoap.org/ws/2003/03/business-process/"
 xmlns:tns="http://blwb.abc.com/getGlobalService"
 xmlns:bpel="http://schemas.xmlsoap.org/ws/2003/03/business-process/"
 xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
 xsi:schemaLocation="http://schemas.xmlsoap.org/ws/2003/03/business-process/
 http://schemas.xmlsoap.org/ws/2003/03/business-process/">

 <partnerLinks>
 <!-- establishes the relationship with the caller agent -->
 <partnerLink name="caller" partnerLinkType="tns:BatchProduct-Caller"
 myRole="BatchProduct" />


 <partnerLink name="fileread" partnerLinkType="tns:filereadLT"
 partnerRole="FileRead" />


 <partnerLink name="ftpinput" partnerLinkType="tns:ftpinputLT"
 partnerRole="FetchService" />


 </partnerLinks>

 <variables>
 <!-- holds the incoming message -->
 <variable name="request" messageType="tns:nameMessage" />
 <!-- holds the outgoing message -->
 <variable name="response" messageType="tns:greetingMessage" />
 <variable name="getDunsDocumentRequest" messageType="tns:fileReadRequestMessage" />
 <variable name="getDunsDocumentResponse" messageType="tns:fileReadResponseMessage" />


 <variable name="getFileRequest" messageType="tns:ftpinputRequestMessage" />
 <variable name="getFileResponse" messageType="tns:ftpinputResponseMessage" />



 <variable name="POFault" messageType="tns:orderFaultType" />


 </variables>


<faultHandlers>

 <catch faultName="tns:cannotCompleteOrder" faultVariable="POFault">

 <reply partnerLink="caller" portType="tns:BatchProduct"
 operation="sayHello" variable="POFault"
 faultName="cannotCompleteOrder" />

 </catch>

 </faultHandlers>



 <sequence>

 <!-- receive the name of a person -->
 <receive operation="sayHello" partnerLink="caller" portType="tns:BatchProduct"
 variable="request" createInstance="yes" />



 <sequence>




 <assign>
 <copy>
 <from variable="request" part="name" />
 <to variable="getDunsDocumentRequest" part="getDunsDocumentRequest" />
 </copy>
 </assign>




 <invoke partnerLink="fileread" portType="tns:FileRead"
 operation="getDunsDocument" inputVariable="getDunsDocumentRequest"
 outputVariable="getDunsDocumentResponse">
 </invoke>


 <assign>
 <copy>
 <from variable="getDunsDocumentResponse" part="getDunsDocumentResponse" />
 <to variable="getFileRequest" part="getFileRequest" />
 </copy>
 </assign>




 <invoke partnerLink="ftpinput" portType="tns:FTPInputPortType"
 operation="getFile" inputVariable="getFileRequest"
 outputVariable="getFileResponse">
 </invoke>

 <assign>
 <copy>
 <from variable="getFileResponse" part="getFileResponse" />
 <to variable="response" part="greeting" />
 </copy>
 </assign>



</sequence>

 <!-- reply with the greeting -->
 <reply operation="sayHello" partnerLink="caller" portType="tns:BatchProduct"
 variable="response" />
 </sequence>

</process>

The wsdl file is given below.

<?xml version="1.0" encoding="UTF-8"?>
<definitions targetNamespace="http://blwb.abc.com/getGlobalService"
 xmlns="http://schemas.xmlsoap.org/wsdl/"
 xmlns:pos="http://blwb.abc.com/getGlobalService"
 xmlns:xsd="http://www.w3.org/2001/XMLSchema"
 xmlns:plt="http://schemas.xmlsoap.org/ws/2003/05/partner-link/"
 xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
 xsi:schemaLocation="http://schemas.xmlsoap.org/wsdl/
 http://schemas.xmlsoap.org/wsdl/
 http://schemas.xmlsoap.org/ws/2003/05/partner-link/
 http://schemas.xmlsoap.org/ws/2003/05/partner-link/">

 <!-- characterizes the relationship between the greeter and its caller -->
 <plt:partnerLinkType name="BatchProduct-Caller">
 <plt:role name="BatchProduct">
 <plt:portType name="pos:BatchProduct" />
 </plt:role>
 <!-- the Caller does not provide services to the BatchProduct,
 this is why we omit the "Caller" role -->
 </plt:partnerLinkType>

 <plt:partnerLinkType name="filereadLT">
 <plt:role name="FileRead">
 <plt:portType name="pos:FileRead" />
 </plt:role>

 </plt:partnerLinkType>



<plt:partnerLinkType name="ftpinputLT">
 <plt:role name="FetchService">
 <plt:portType name="pos:FTPInputPortType" />
 </plt:role>

 </plt:partnerLinkType>



 <types>
 <xsd:schema>
 <xsd:import namespace="http://blwb.abc.com/getGlobalService"
 schemaLocation="bestlinkage.xsd" />
 </xsd:schema>
 </types>
 <!-- carries the name of a person -->
 <message name="nameMessage">
 <part name="name" type="xsd:string" />
 </message>

 <!-- carries the greeting -->
 <message name="greetingMessage">
 <part name="greeting" type="xsd:string" />
 </message>
<message name="fileReadRequestMessage">
 <part name="getDunsDocumentRequest" type="xsd:string" />
 </message>

 <message name="fileReadResponseMessage">
 <part name="getDunsDocumentResponse" type="xsd:string" />
 </message>


 <message name="ftpinputRequestMessage">
 <part name="getFileRequest" type="xsd:string" />
 </message>

 <message name="ftpinputResponseMessage">
 <part name="getFileResponse" type="xsd:string" />
 </message>




 <message name="orderFaultType">
 <part name="problemInfo" element="pos:problemInfo" />
 </message>

 <!-- describes the interface presented to callers -->
 <portType name="BatchProduct">
 <operation name="sayHello">
 <input message="pos:nameMessage" />
 <output message="pos:greetingMessage" />
 <fault name="cannotCompleteOrder" message="pos:orderFaultType" />
 </operation>
 </portType>

 <portType name="FileRead">
 <operation name="getDunsDocument">
 <input message="pos:fileReadRequestMessage" />
 <output message="pos:fileReadResponseMessage" />
 </operation>
 </portType>

<portType name="FTPInputPortType">
 <operation name="getFile">
 <input message="pos:ftpinputRequestMessage" />
 <output message="pos:ftpinputResponseMessage" />
 </operation>
 </portType>

</definitions>

The bpel-Application.xml is given below.


<?xml version="1.0" encoding="UTF-8"?>
<bpelApplication name="BatchProductBusiness" xmlns="http://jbpm.org/bpel"
 xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
 xsi:schemaLocation="http://jbpm.org/bpel
 http://jbpm.org/bpel/bpel_application_1_0.xsd" >
 <serviceCatalogs>
 <!-- listing of locally published WSDL documents -->
 <urlCatalog contextUrl="http://localhost:8080/">
 <!-- published WSDL document of fileread service -->
 <wsdl location="fileread/fileread?wsdl"/>
 </urlCatalog>
 <urlCatalog contextUrl="http://localhost:8080/">
 <!-- published WSDL document of ftpinput service -->
 <wsdl location="esb/jbi/ftpinservice/main.wsdl"/>

 </urlCatalog>


 </serviceCatalogs>

</bpelApplication>

Please write to me where I am making the mistake ?

Thanks in advance,

Regards,
-veena-