Error while invoking decision service

Question

Hi,
I have created a decide activity to invoke decision service partner link, then I have created copy operation assignments between fact types in my business rule set and BPEL variables.
Now while running the BPEL process, I am getting the following error at Invoke activity of the decide activity:
Error while executing a rule session unit of work.
The rule session RulesWithDecisionService:50034 failed to execute a unit of work.
Check the underlying exception and correct the error. Contact oracle support if error is not fixable.
Following is the complete stack trace of the error:
<messages><input><dsIn><part xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" name="payload"><assertExecuteWatchStateful name="DecisionService" xmlns="http://xmlns.oracle.com/RulesWithDecisionService/DecisionService">
<configURL>http://jshaik:8888/orabpel/default/RulesWithDecisionService/1.0/decisionservices.decs</configURL>
<bpelInstance>
<processId xmlns="http://xmlns.oracle.com/bpel">RulesWithDecisionService</processId>
<processVersion xmlns="http://xmlns.oracle.com/bpel">1.0</processVersion>
<domainId xmlns="http://xmlns.oracle.com/bpel">default</domainId>
<processURL xmlns="http://xmlns.oracle.com/bpel">http://jshaik:8888/orabpel/default/RulesWithDecisionService/1.0</processURL>
<instanceId xmlns="http://xmlns.oracle.com/bpel">50034</instanceId>
<conversationId xmlns="http://xmlns.oracle.com/bpel"/>
</bpelInstance>
<assertList>
<student xmlns="http://samples.otn.com/bpel/demo">
<id/>
<name/>
<studentClass/>
<arts>89.0</arts>
<maths/>
<science/>
<social/>
<backlog/>
<backlogSubject/>
<finalGrade/>
<promotionStatus/>
<passCount/>
</student>
</assertList>
</assertExecuteWatchStateful>
</part></dsIn></input><fault><operationErroredFault xmlns="http://xmlns.oracle.com/RulesWithDecisionService/DecisionService"><part name="payload"><ns0:errorInfo xmlns:ns0="http://xmlns.oracle.com/RulesWithDecisionService/DecisionService" xmlns:env="http://schemas.xmlsoap.org/soap/envelope/" xmlns:xsd="http://www.w3.org/2001/XMLSchema" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance">
<ns0:errorMessage xmlns:env="http://schemas.xmlsoap.org/soap/envelope/" xmlns:xsd="http://www.w3.org/2001/XMLSchema" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:ns0="http://xmlns.oracle.com/RulesWithDecisionService/DecisionService">Error while executing a rule session unit of work.
The rule session RulesWithDecisionService:50034 failed to execute a unit of work.
Check the underlying exception and correct the error. Contact oracle support if error is not fixable.
</ns0:errorMessage>
</ns0:errorInfo>
</part></operationErroredFault></fault></messages>
Please help me in this regard.
Thanks in advance
Phanikanth

Answer 1

Hi Phanikanth,
Wondering if you could check the file
?/bpel/domains/default/logs/domain.log
There should be a Java stack trace logged for the error you did run into.
Please copy&paste the stack trace and post it here.
Best Regards,
Ralf