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Marshalling of a JBPM session
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created by <a href="https://community.jboss.org/people/hansi007">hansi007</a> in <i>jBPM</i> - <a href="https://community.jboss.org/message/735387#735387">View the full discussion</a>
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<div class="jive-rendered-content"><p>I want to marshall my jbpm session. Therefore i used the tutorial <a class="jive-link-external-small" href="http://packtlib.packtpub.com/library/9781849511964/ch02lvl1sec02">http://packtlib.packtpub.com/library/9781849511964/ch02lvl1sec02</a></p><p>My code to marshall:</p><pre class="jive-pre"><code class="jive-code jive-java">KnowledgeBase kbase = ...
StatefulKnowledgeSession ksession = JPAKnowledgeService.newStatefulKnowledgeSession( kbase, null, env );
...
ByteArrayOutputStream baos = <font color="navy"><b>new</b></font> ByteArrayOutputStream();
                    Marshaller marshaller = MarshallerFactory.newMarshaller(kbase);
                    File file = <font color="navy"><b>new</b></font> File(<font color="red">"ksession_"</font>+sessionId+<font color="red">".info"</font>);
                    FileOutputStream foStream;
                    <font color="navy"><b>try</b></font> <font color="navy">{</font>
                              foStream = <font color="navy"><b>new</b></font> FileOutputStream(file);
                              marshaller.marshall(baos, ksession);
                              baos.writeTo(foStream);
                              baos.close();
                    <font color="navy">}</font> <font color="navy"><b>catch</b></font> (FileNotFoundException e) <font color="navy">{</font>
                              e.printStackTrace();
                    <font color="navy">}</font> <font color="navy"><b>catch</b></font> (IOException e) <font color="navy">{</font>
                              e.printStackTrace();
                    <font color="navy">}</font>
</code></pre><p style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><p>If this code is executed the following exception occurs (in the line "marshaller.marshall(baos, ksession);"):</p><p style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><pre class="jive-pre"><code class="jive-code jive-java">java.lang.ClassCastException: org.drools.command.impl.CommandBasedStatefulKnowledgeSession cannot be cast to org.drools.impl.StatefulKnowledgeSessionImpl
          at org.drools.marshalling.impl.DefaultMarshaller.marshall(DefaultMarshaller.java:134)
          at org.drools.marshalling.impl.DefaultMarshaller.marshall(DefaultMarshaller.java:126)
...
 
</code></pre></div>
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