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Unable to load session snapshot
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created by <a href="http://community.jboss.org/people/francesco.pietrobelli">Francesco Pietrobelli</a> in <i>jBPM</i> - <a href="http://community.jboss.org/message/611223#611223">View the full discussion</a>
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<div class="jive-rendered-content"><p>Hi,</p><p>i have a problem about persistence that i don't know how to resolve it. P<span class="short_text" id="result_box" lang="en"><span class="hps" title="Fai clic per visualizzare le traduzioni alternative">articularly i'm not able to load a session with some facts into an entry point of working memory.</span></span></p><p style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><p><span class="short_text" lang="en"><span class="hps" title="Fai clic per visualizzare le traduzioni alternative">I have attached a very simple eclipse project in which there is only one rule file and one java class:</span></span></p><p><span class="short_text" lang="en"><span class="hps" title="Fai clic per visualizzare le traduzioni alternative">In the rule file i define a entry-point called "eventStream"<br/></span></span></p><p style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><p style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><p>In java class inside a single transaction i:</p><ol><li style="text-align: start;">create a StatefulKnowledgeSession</li><li style="text-align: start;">add some facts in entry point</li><li style="text-align: start;">dispose session</li></ol><p style="text-align: start;">After that in another transaction i try to load the session, but the following exception is thrown</p><p style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><p>java.lang.IllegalStateException: java.lang.reflect.InvocationTargetException</p><p>    at org.drools.persistence.jpa.KnowledgeStoreServiceImpl.buildCommanService(KnowledgeStoreServiceImpl.java:103)</p><p>    at org.drools.persistence.jpa.KnowledgeStoreServiceImpl.loadStatefulKnowledgeSession(KnowledgeStoreServiceImpl.java:71)</p><p>    at org.drools.persistence.jpa.JPAKnowledgeService.loadStatefulKnowledgeSession(JPAKnowledgeService.java:118)</p><p>    at jpaSession.TestJPASession.loadKnowledgeSession(TestJPASession.java:148)</p><p>    at jpaSession.TestJPASession.testLoadSessionWithFactsInEntryPoint(TestJPASession.java:97)</p><p>    at jpaSession.TestJPASession.main(TestJPASession.java:65)</p><p>Caused by: java.lang.reflect.InvocationTargetException</p><p>    at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method)</p><p>    at sun.reflect.NativeConstructorAccessorImpl.newInstance(NativeConstructorAccessorImpl.java:57)</p><p>    at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:45)</p><p>    at java.lang.reflect.Constructor.newInstance(Constructor.java:532)</p><p>    at org.drools.persistence.jpa.KnowledgeStoreServiceImpl.buildCommanService(KnowledgeStoreServiceImpl.java:88)</p><p>    ... 5 more</p><p>Caused by: java.lang.RuntimeException: Unable to load session snapshot</p><p>    at org.drools.persistence.SessionMarshallingHelper.loadSnapshot(SessionMarshallingHelper.java:96)</p><p>    at org.drools.persistence.SingleSessionCommandService.initKsession(SingleSessionCommandService.java:196)</p><p>    at org.drools.persistence.SingleSessionCommandService.(LeftTuple.java:144)</p><p>    at org.drools.marshalling.impl.InputMarshaller.readLeftTuple(InputMarshaller.java:599)</p><p>    at org.drools.marshalling.impl.InputMarshaller.readFactHandles(InputMarshaller.java:372)</p><p>    at org.drools.marshalling.impl.InputMarshaller.readSession(InputMarshaller.java:220)</p><p>    at org.drools.marshalling.impl.DefaultMarshaller.unmarshall(DefaultMarshaller.java:92)</p><p>    at org.drools.persistence.SessionMarshallingHelper.loadSnapshot(SessionMarshallingHelper.java:91)</p><p>    ... 12 more</p><p style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><p style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><p>the problem occurs only when i dispose the session with some facts in entry-point, if i insert some facts in workingmemory everything works fine.</p><p style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><p>does anyone have any suggestion?</p><p style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><p>i'm using jBPM 5.1 CR1</p></div>
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