Re: [rules-users] "java.lang.AbstractMethodError: org.jbpm.marshalling.impl.ProcessMarshallerImpl.init" while unmarshalling statefulknowledgesession

Hi, I'm using drools and guvnor 5.4 cr1. I've few drools ruleflows which were not executing so I imported the jars from jbpm 5.2 final..... The marshalling and unmarshalling works fine if I have knowledge base without rule-flows. I hope this gives some hint.. On Mon, Apr 16, 2012 at 11:29 AM, Wolfgang Laun <wolfgang.laun(a)gmail.com&gt;wrote: > This kind of error indicates some confusion between compilation and > execution of the code where this is thrown. > > Also, which versions of Drools do you used for marshalling and > unmarshalling? There's no line 287 in the versions of > org.drools.marshalling.impl.PersisterHelper.java available to me. > > -W > > > On 16/04/2012, sumatheja <sumatheja(a)gmail.com&gt; wrote: > > Hi All, > > I ran across an issue while unmarshalling > StatefulKnowledgeSession. > > First I'm marshalling the session using the following code which works > fine > > > > Marshaller marshaller = MarshallerFactory > > > > .newMarshaller(workingMemory.getKnowledgeBase()); > > File file = new File( > > "C:\\Users\\Sumatheja\\workingmemory.info > "); > > FileOutputStream fos = new FileOutputStream(file); > > ByteArrayOutputStream baos = new > > ByteArrayOutputStream(); > > marshaller.marshall(baos, workingMemory); > > baos.writeTo(fos); > > baos.close(); > > > > When I try to unmarshall the session using > > > > Marshaller marshaller = MarshallerFactory > > > .newMarshaller(workingMemory.getKnowledgeBase()); > > FileInputStream fis = new > > FileInputStream("C:\\Users\\Sumatheja\\workingmemory.info"); > > workingMemory = marshaller.unmarshall(fis); > > > > I'm getting the Error: > > > > > > java.lang.AbstractMethodError: > > > org.jbpm.marshalling.impl.ProcessMarshallerImpl.init(Lorg/drools/marshalling/impl/MarshallerReaderContext;)V > > at > > > org.drools.marshalling.impl.PersisterHelper.buildRegistry(PersisterHelper.java:287) > > at > > > org.drools.marshalling.impl.ProtobufInputMarshaller.loadAndParseSession(ProtobufInputMarshaller.java:219) > > at > > > org.drools.marshalling.impl.ProtobufInputMarshaller.readSession(ProtobufInputMarshaller.java:152) > > at > > > org.drools.marshalling.impl.ProtobufMarshaller.unmarshall(ProtobufMarshaller.java:117) > > at > > > org.drools.marshalling.impl.ProtobufMarshaller.unmarshall(ProtobufMarshaller.java:86) > > at > > > mattelli.re.ComplianceEngine.ComplianceRunService(ComplianceEngine.java:271) > > at mattelli.re.ComplianceEngine.main(ComplianceEngine.java:84) > > > > No Idea what I'm missing out... any help will be appreciated... Thanks > in > > advance > > > > > > -- > > cheers > > Sumatheja Dasararaju > > > _______________________________________________ > rules-users mailing list > rules-users(a)lists.jboss.org > https://lists.jboss.org/mailman/listinfo/rules-users > -- cheers Sumatheja Dasararaju