BPEL Test waits forever to receive callback from human task service

Question

Hi,
I've created a test (CreditCardInvalidTest.xml) to test a bpel process (testbpel.bpel) which contains a call to a human task service. The problem is when the test executes it waits forever to receive the response message from the human task service but clearly i've emulated it! Would appreciate help.
I've attached both files and highlighted the relevant sections. Thanks.
testbpel.bpel
<process name="testbpel" targetNamespace="http://xmlns.oracle.com/testbpel"
xmlns="http://schemas.xmlsoap.org/ws/2003/03/business-process/"
xmlns:wfcommon="http://xmlns.oracle.com/bpel/workflow/common"
xmlns:bpws="http://schemas.xmlsoap.org/ws/2003/03/business-process/"
xmlns:xp20="http://www.oracle.com/XSL/Transform/java/oracle.tip.pc.services.functions.Xpath20"
xmlns:ns4="http://www.oracle.com/XSL/Transform/java/oracle.tip.xref.xpath.XRefXPathFunctions"
xmlns:ns7="http://xmlns.oracle.com/testbpel/creditFault"
xmlns:ldap="http://schemas.oracle.com/xpath/extension/ldap"
xmlns:xsd="http://www.w3.org/2001/XMLSchema"
xmlns:wf="http://schemas.oracle.com/bpel/extension/workflow"
xmlns:ns5="http://oracle.com/esb/namespaces/Fufillment"
xmlns:client="http://xmlns.oracle.com/testbpel"
xmlns:ns6="http://www.creditcardagency.com/CreditCardService"
xmlns:ora="http://schemas.oracle.com/xpath/extension"
xmlns:taskservice="http://xmlns.oracle.com/bpel/workflow/taskService"
xmlns:ns9="http://xmlns.oracle.com/testbpel/orderRejected"
xmlns:ns1="http://xmlns.oracle.com/bpel/workflow/xpath"
xmlns:ns3="http://www.oracle.com/XSL/Transform/java/oracle.tip.esb.server.headers.ESBHeaderFunctions"
xmlns:ns2="http://xmlns.oracle.com/bpel/services/IdentityService/xpath"
xmlns:bpelx="http://schemas.oracle.com/bpel/extension"
xmlns:task="http://xmlns.oracle.com/bpel/workflow/task"
xmlns:orcl="http://www.oracle.com/XSL/Transform/java/oracle.tip.pc.services.functions.ExtFunc"
xmlns:ns8="http://xmlns.oracle.com/testbpel/genericFault">
<!--
PARTNERLINKS
List of services participating in this BPEL process
-->
<partnerLinks>
<!--
The 'client' role represents the requester of this service. It is
used for callback. The location and correlation information associated
with the client role are automatically set using WS-Addressing.
-->
<partnerLink name="client" partnerLinkType="client:testbpel"
myRole="testbpelProvider" partnerRole="testbpelRequester"/>
<partnerLink name="ShipmentService" partnerRole="execute_pptProvider"
partnerLinkType="ns5:execute_pptLT"/>
<partnerLink name="CreditCardService"
partnerRole="CreditCardServiceProvider"
partnerLinkType="ns6:CreditCardService"/>
<partnerLink myRole="TaskServiceCallbackListener" name="TaskService"
partnerRole="TaskService"
partnerLinkType="taskservice:TaskService"/>
</partnerLinks>
<!--
VARIABLES
List of messages and XML documents used within this BPEL process
-->
<variables>
<!-- Reference to the message passed as input during initiation -->
<!-- Reference to the message that will be sent back to the requester during callback -->
<variable name="inputVariable"
messageType="client:testbpelRequestMessage"/>
<variable name="outputVariable"
messageType="client:testbpelResponseMessage"/>
<variable name="n" type="xsd:integer"/>
<variable name="Invoke_ShipmentService_execute_InputVariable"
messageType="ns5:orderRequest_request"/>
<variable name="paymentFault"
messageType="client:testbpelFaultMessage"/>
<variable name="ApproveOrder_1_globalVariable"
messageType="taskservice:taskMessage"/>
<variable name="orderRejectedFault"
messageType="client:testbpelFaultMessage"/>
</variables>
<faultHandlers>
<catchAll>
<sequence name="Sequence_6">
<throw name="Throw_AllFaults"
faultName="ns8:testbpelGenericFault"
faultVariable="paymentFault"/>
</sequence>
</catchAll>
</faultHandlers>
<!--
ORCHESTRATION LOGIC
Set of activities coordinating the flow of messages across the
services integrated within this business process
-->
<sequence name="main">
<!-- Receive input from requestor. (Note: This maps to operation defined in testbpel.wsdl) -->
<receive name="receiveInput" partnerLink="client"
portType="client:testbpel" operation="initiate"
variable="inputVariable" createInstance="yes"/>
<!--
Asynchronous callback to the requester. (Note: the callback location and correlation id is transparently handled using WS-addressing.)
-->
<scope name="CheckForApproval">
<sequence name="Sequence_4">
<sequence name="Sequence_5">
<scope name="ApproveOrder_1"
xmlns:wf="http://schemas.oracle.com/bpel/extension/workflow"
wf:key="ApproveOrder_1_globalVariable">
<bpelx:annotation>
<bpelx:pattern patternName="bpelx:workflow"></bpelx:pattern>
</bpelx:annotation>
<variables>
<variable name="initiateTaskInput"
messageType="taskservice:initiateTaskMessage"/>
<variable name="initiateTaskResponseMessage"
messageType="taskservice:initiateTaskResponseMessage"/>
</variables>
<correlationSets>
<correlationSet name="WorkflowTaskIdCor"
properties="taskservice:taskId"/>
</correlationSets>
<sequence>
<assign name="ApproveOrder_1_AssignTaskAttributes">
<copy>
<from expression="concat(ora:getProcessURL(), string('/ApproveOrder/ApproveOrder.task'))"/>
<to variable="initiateTaskInput"
part="payload"
query="/taskservice:initiateTask/task:task/task:taskDefinitionURI"/>
</copy>
<copy>
<from expression="number(3)"/>
<to variable="initiateTaskInput"
part="payload"
query="/taskservice:initiateTask/task:task/task:priority"/>
</copy>
<copy>
<from>
<payload xmlns="http://xmlns.oracle.com/bpel/workflow/task"/>
</from>
<to variable="initiateTaskInput"
part="payload"
query="/taskservice:initiateTask/task:task/task:payload"/>
</copy>
</assign>
<assign name="ApproveOrder_1_AssignSystemTaskAttributes">
<copy>
<from expression="ora:getInstanceId()"/>
<to variable="initiateTaskInput"
part="payload"
query="/taskservice:initiateTask/task:task/task:processInfo/task:instanceId"/>
</copy>
<copy>
<from expression="ora:getProcessId()"/>
<to variable="initiateTaskInput"
part="payload"
query="/taskservice:initiateTask/task:task/task:processInfo/task:processName"/>
</copy>
<copy>
<from expression="ora:getProcessId()"/>
<to variable="initiateTaskInput"
part="payload"
query="/taskservice:initiateTask/task:task/task:processInfo/task:processId"/>
</copy>
<copy>
<from expression="ora:getProcessVersion()"/>
<to variable="initiateTaskInput"
part="payload"
query="/taskservice:initiateTask/task:task/task:processInfo/task:processVersion"/>
</copy>
<copy>
<from expression="ora:getDomainId()"/>
<to variable="initiateTaskInput"
part="payload"
query="/taskservice:initiateTask/task:task/task:processInfo/task:domainId"/>
</copy>
<copy>
<from expression="string('BPEL')"/>
<to variable="initiateTaskInput"
part="payload"
query="/taskservice:initiateTask/task:task/task:processInfo/task:processType"/>
</copy>
</assign>
<invoke name="initiateTask_ApproveOrder_1"
partnerLink="TaskService"
portType="taskservice:TaskService"
operation="initiateTask"
inputVariable="initiateTaskInput"
outputVariable="initiateTaskResponseMessage">
<correlations>
<correlation initiate="yes"
set="WorkflowTaskIdCor"
pattern="in"/>
</correlations>
</invoke>
*<receive name="receiveCompletedTask_ApproveOrder_1"*
partnerLink="TaskService"
portType="taskservice:TaskServiceCallback"
operation="onTaskCompleted"
variable="ApproveOrder_1_globalVariable"
createInstance="no">
*<correlations>*
*<correlation initiate="no"*
set="WorkflowTaskIdCor"/>
*</correlations>*
*</receive>*
</sequence>
</scope>
<switch name="taskSwitch">
<case condition="bpws:getVariableData('ApproveOrder_1_globalVariable', 'payload', '/task:task/task:systemAttributes/task:state') = 'COMPLETED' and bpws:getVariableData('ApproveOrder_1_globalVariable', 'payload', '/task:task/task:systemAttributes/task:outcome') = 'REJECT'">
<bpelx:annotation>
<bpelx:pattern patternName="case">Task outcome is REJECT</bpelx:pattern>
</bpelx:annotation>
<sequence>
<assign name="AssignOrderRejected">
<copy>
<from expression="string('Order rejected by manager')"/>
<to variable="paymentFault"
part="payload"
query="/client:testbpelProcessFault/client:status"/>
</copy>
</assign>
<throw name="ThrowOrderRejected"
faultName="ns9:orderRejectedFault"
faultVariable="orderRejectedFault"/>
</sequence>
</case>
<case condition="bpws:getVariableData('ApproveOrder_1_globalVariable', 'payload', '/task:task/task:systemAttributes/task:state') = 'COMPLETED' and bpws:getVariableData('ApproveOrder_1_globalVariable', 'payload', '/task:task/task:systemAttributes/task:outcome') = 'APPROVE'">
<bpelx:annotation>
<bpelx:pattern patternName="case">Task outcome is APPROVE</bpelx:pattern>
</bpelx:annotation>
<sequence>
<empty name="Empty_1"/>
</sequence>
</case>
<otherwise>
<bpelx:annotation>
<bpelx:pattern>Task is outcome is EXPIRED, STALE, WITHDRAWN or ERRORED</bpelx:pattern>
</bpelx:annotation>
<sequence>
<empty name="Empty_2"/>
</sequence>
</otherwise>
</switch>
</sequence>
</sequence>
</scope>
<scope name="CheckCreditCard">
<variables>
<variable name="InvokeCreditCardService_process_InputVariable"
messageType="ns6:CreditCardServiceRequestMessage"/>
<variable name="InvokeCreditCardService_process_OutputVariable"
messageType="ns6:CreditCardServiceResponseMessage"/>
</variables>
<sequence name="Sequence_2">
<assign name="Assign_1">
<copy>
<from variable="inputVariable" part="payload"
query="/client:testbpelProcessRequest/client:CreditCardNumber"/>
<to variable="InvokeCreditCardService_process_InputVariable"
part="payload"
query="/ns6:CreditCardServiceProcessRequest/ns6:CreditCardNumber"/>
</copy>
</assign>
<scope name="Scope_1">
<compensationHandler>
<sequence name="Sequence_7">
<empty name="Empty_3"/>
</sequence>
</compensationHandler>
<invoke name="InvokeCreditCardService"
partnerLink="CreditCardService"
portType="ns6:CreditCardService" operation="process"
inputVariable="InvokeCreditCardService_process_InputVariable"
outputVariable="InvokeCreditCardService_process_OutputVariable"/>
</scope>
<switch name="CheckCreditCardValid">
<case condition="bpws:getVariableData('InvokeCreditCardService_process_OutputVariable','payload','/ns6:CreditCardServiceProcessResponse/ns6:result') = 'false'">
<sequence name="Sequence_3">
<assign name="AssignCreditFault">
<copy>
<from expression="string('Invalid credit card number')"/>
<to variable="paymentFault" part="payload"
query="/client:testbpelProcessFault/client:status"/>
</copy>
</assign>
<throw name="ThrowCreditFault"
faultName="ns7:CreditCardNumberFault"
faultVariable="paymentFault"/>
</sequence>
</case>
</switch>
</sequence>
</scope>
<assign name="AssignInitial">
<copy>
<from expression="string('Select Manufacturer')"/>
<to variable="outputVariable" part="payload"
query="/client:testbpelProcessResponse/client:result"/>
</copy>
<copy>
<from expression="1"/>
<to variable="n"/>
</copy>
<copy>
<from expression="0.0"/>
<to variable="outputVariable" part="payload"
query="/client:testbpelProcessResponse/client:price"/>
</copy>
</assign>
<while name="While_1"
condition="bpws:getVariableData('n') &lt;= count(bpws:getVariableData('inputVariable','payload','/client:testbpelProcessRequest/client:input'))">
<sequence name="Sequence_1">
<assign name="DoCalculation">
<copy>
<from expression="bpws:getVariableData('inputVariable','payload', concat('/client:testbpelProcessRequest/client:input[', bpws:getVariableData('n'), ']/client:quantity')) * bpws:getVariableData('inputVariable','payload',concat('/client:testbpelProcessRequest/client:input[', bpws:getVariableData('n'), ']/client:bookPrice')) + bpws:getVariableData('outputVariable','payload','/client:testbpelProcessResponse/client:price')"/>
<to variable="outputVariable" part="payload"
query="/client:testbpelProcessResponse/client:price"/>
</copy>
<copy>
<from expression="bpws:getVariableData('n') + 1"/>
<to variable="n"/>
</copy>
</assign>
</sequence>
</while>
<assign name="Transform_2">
<bpelx:annotation>
<bpelx:pattern>transformation</bpelx:pattern>
</bpelx:annotation>
<copy>
<from expression="ora:processXSLT('TransformOrder.xsl',bpws:getVariableData('inputVariable','payload'))"/>
<to variable="Invoke_ShipmentService_execute_InputVariable"
part="orderRequest"/>
</copy>
</assign>
<invoke name="Invoke_ShipmentService" partnerLink="ShipmentService"
portType="ns5:execute_ppt" operation="execute"
inputVariable="Invoke_ShipmentService_execute_InputVariable"/>
<invoke name="callbackClient" partnerLink="client"
portType="client:testbpelCallback" operation="onResult"
inputVariable="outputVariable"/>
</sequence>
</process>
CreditCardInvalidTest.xml
<BPELTest processName="testbpel"
xmlns="http://xmlns.oracle.com/bpel/instancedriver"
xmlns:client="http://xmlns.oracle.com/testbpel">
<initiate operation="initiate">
<inboundMessage>
<part fileName="testInput.xml" name="payload"/>
</inboundMessage>
</initiate>
<activityDriver name="callbackClient">
<assertValue variableName="outputVariable" partName="payload"
comparisonMethod="string" fatal="false" patternMatch="false">
<message>Expected "Select Manufacturer"</message>
<actualPath>/client:testbpelProcessResponse/client:result</actualPath>
<expected>Select Manufacturer</expected>
</assertValue>
<assertValue variableName="outputVariable" partName="payload"
comparisonMethod="string" fatal="true" patternMatch="false">
<message>Expected price of "1"</message>
<actualPath>/client:testbpelProcessResponse/client:price</actualPath>
<expected>1</expected>
</assertValue>
</activityDriver>
*<activityDriver name="receiveCompletedTask_ApproveOrder_1">*
*<emulate duration="PT">*
*<inboundMessage>*
*<part fileName="approverResponse.xml" name="payload"/>*
*</inboundMessage>*
*</emulate>*
*</activityDriver>* <--- it waits FOREVER at this bit to receive the approverResponse.xml :s
<activityDriver name="InvokeCreditCardService">
<emulate duration="PT">
<inboundMessage>
<part fileName="creditCardServiceResponse.xml" name="payload"/>
</inboundMessage>
</emulate>
</activityDriver>
<activityDriver name="initiateTask_ApproveOrder_1">
<emulate duration="PT">
<inboundMessage>
<part fileName="getApproval.xml" name="payload"/>
</inboundMessage>
</emulate>
</activityDriver>
</BPELTest>

Answer 1

RaviKiran,
I agree that the explanation oracle provided in the attach link, is a bit confusing. The main goal there is to describe the behavior of processes, when there is a need to combine, or split the transactions within those processes (or in some cases the processes themselves).
The thing is - The default transaction for a synchronous process is requiresNew. That was until version 11.1.1.6. On this last version, you are asking to enter a Transaction parameter when creating a new synchronous bpel process. The default value being prompt is required and that's what causing the problem – You automatically accept the default.
The assumption is, that developing bpel processes, should come with understanding of all those behaviors.
The problem for my understanding is that some of those behaviors were not so cleared until now.
Arik