Hi All,<br>        I ran across an issue while unmarshalling StatefulKnowledgeSession. First I&#39;m marshalling the session using the following code which works fine<br><br>Marshaller marshaller = MarshallerFactory<br>                            .newMarshaller(workingMemory.getKnowledgeBase());<br>

                    File file = new File(<br>                            &quot;C:\\Users\\Sumatheja\\<a href="http://workingmemory.info">workingmemory.info</a>&quot;);<br>                    FileOutputStream fos = new FileOutputStream(file);<br>

                    ByteArrayOutputStream baos = new ByteArrayOutputStream();<br>                    marshaller.marshall(baos, workingMemory);<br>                    baos.writeTo(fos);<br>                    baos.close();<br>

<br>When I try to unmarshall the session using<br><br> Marshaller marshaller = MarshallerFactory<br>                        .newMarshaller(workingMemory.getKnowledgeBase());<br>                      FileInputStream fis = new FileInputStream(&quot;C:\\Users\\Sumatheja\\<a href="http://workingmemory.info">workingmemory.info</a>&quot;);<br>

                      workingMemory = marshaller.unmarshall(fis);<br><br>I&#39;m getting the Error:<br><br><br>java.lang.AbstractMethodError: org.jbpm.marshalling.impl.ProcessMarshallerImpl.init(Lorg/drools/marshalling/impl/MarshallerReaderContext;)V<br>

    at org.drools.marshalling.impl.PersisterHelper.buildRegistry(PersisterHelper.java:287)<br>    at org.drools.marshalling.impl.ProtobufInputMarshaller.loadAndParseSession(ProtobufInputMarshaller.java:219)<br>    at org.drools.marshalling.impl.ProtobufInputMarshaller.readSession(ProtobufInputMarshaller.java:152)<br>

    at org.drools.marshalling.impl.ProtobufMarshaller.unmarshall(ProtobufMarshaller.java:117)<br>    at org.drools.marshalling.impl.ProtobufMarshaller.unmarshall(ProtobufMarshaller.java:86)<br>    at mattelli.re.ComplianceEngine.ComplianceRunService(ComplianceEngine.java:271)<br>

    at mattelli.re.ComplianceEngine.main(ComplianceEngine.java:84)<br><br>No Idea what I&#39;m missing out... any help will be appreciated... Thanks in advance<br><br clear="all"><br>-- <br>cheers<br>Sumatheja Dasararaju<br>

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