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

[Wolfgang Laun]

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 at gmail.com> 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
>