UTFDataFormat Exception in ReadProcessInstance

[mariaprabudass]

Hi,

I came across to an issue when i upgrade my drools and jbpm version to the below given specification, while i try to push the Task from one process to another process "UTFDataFormat" Exception found in the readProcessInstance. I am quite confused to use the same. Could you please check and advise me.

Specifications:-

jBPM: 5.4.0-Final

drools: 5.5.0-Final

Code:-  

            WorkflowProcess workFlowProcess = getWorkflowProcess(kbase);

            BpmnRoute baseRoute = constructBpmnRoute(workFlowProcess);

            ProcessInstanceInfo processInstanceInfo = processInstanceInfos.get(0);

            InputStream file = new ByteArrayInputStream( processInstanceInfo.getProcessInstanceByteArray() );

            InputStream buffer = new BufferedInputStream( file );

            InternalRuleBase ruleBase = (InternalRuleBase) ((KnowledgeBaseImpl) kbase).ruleBase;

            InternalWorkingMemory wm = (InternalWorkingMemory) ruleBase.newStatefulSession();

            RuleFlowProcessInstanceMarshaller processMarshaller;

            MarshallerReaderContext context = new MarshallerReaderContext(buffer, ruleBase, null, null, ProtobufMarshaller.TIMER_READERS, new EnvironmentImpl());

            context.wm = wm;

            processMarshaller = RuleFlowProcessInstanceMarshaller.INSTANCE;

            ObjectInputStream stream = context.stream;

            stream.readUTF();

           WorkflowProcessInstanceImpl processInstance = (WorkflowProcessInstanceImpl) processMarshaller.readProcessInstance(context);

            context.close();

Exception:-

java.io.UTFDataFormatException

17:12:21,747 ERROR [stderr] (http--10.0.5.53-8080-2) at java.io.ObjectInputStream$BlockDataInputStream.readUTFSpan(ObjectInputStream.java:3107)

17:12:21,747 ERROR [stderr] (http--10.0.5.53-8080-2) at java.io.ObjectInputStream$BlockDataInputStream.readUTFBody(ObjectInputStream.java:3051)

17:12:21,747 ERROR [stderr] (http--10.0.5.53-8080-2) at java.io.ObjectInputStream$BlockDataInputStream.readUTF(ObjectInputStream.java:2864)

17:12:21,748 ERROR [stderr] (http--10.0.5.53-8080-2) at java.io.ObjectInputStream.readUTF(ObjectInputStream.java:1072)

17:12:21,748 ERROR [stderr] (http--10.0.5.53-8080-2) at org.jbpm.marshalling.impl.AbstractProcessInstanceMarshaller.readProcessInstance(AbstractProcessInstanceMarshaller.java:378)

Thanks & Regards,

Maria Prabudass