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failed to lazily initialize a collection of role: org.jbpm.pvm.internal.model.ExecutionImpl.variables, no session or session was closed
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created by <a href="http://community.jboss.org/people/FelixKJose">Felix Jose</a> in <i>jBPM</i> - <a href="http://community.jboss.org/message/551883#551883">View the full discussion</a>
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<div class="jive-rendered-content"><p> Hi All,</p><p style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><p>I am using JBPM with Spring and Hibernate. I am getting the following exception while getting the variables using executionImpl and is as follows:</p><p style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><p><span style="color: #ff0000;">org.hibernate.LazyInitializationException: failed to lazily initialize a collection of role: org.jbpm.pvm.internal.model.ExecutionImpl.variables, no session or session was closed<br/>org.hibernate.collection.AbstractPersistentCollection.throwLazyInitializationException(AbstractPersistentCollection.java:358)<br/>org.hibernate.collection.AbstractPersistentCollection.throwLazyInitializationExceptionIfNotConnected(AbstractPersistentCollection.java:350)<br/>org.hibernate.collection.AbstractPersistentCollection.initialize(AbstractPersistentCollection.java:343)<br/>org.hibernate.collection.AbstractPersistentCollection.read(AbstractPersistentCollection.java:86)<br/>org.hibernate.collection.PersistentMap.entrySet(PersistentMap.java:242)<br/>org.jbpm.pvm.internal.model.ScopeInstanceImpl.getVariables(ScopeInstanceImpl.java:237)<br/>com.jpmc.speadd.service.impl.SpeaddWorkFlow.StartWorkFlow(SpeaddWorkFlow.java:245)</span></p><p style="min-height: 8pt; height: 8pt; padding: 0px;"><span style="color: #ff0000;"> </span>  </p><p><span style="color: #000000;"> My JBPM-config file snippet:</span></p><p style="min-height: 8pt; height: 8pt; padding: 0px;"><span style="color: #000000;"> </span>  </p><p style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><p style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><p style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><p><span style="color: #008080; font-size: 10pt; "><p align="left"><<span style="color: #3f7f7f; font-size: 10pt; ">command-service</span><span style="font-size: 10pt;"> </span><span style="color: #7f007f; font-size: 10pt; ">name</span><span style="font-size: 10pt;">=</span><em><span style="color: #2a00ff; font-size: 10pt; ">"txRequiredCommandService"</span><span style="color: #008080; font-size: 10pt; ">></span><span style="font-size: 10pt;">  <p align="left"><span style="color: #008080; font-size: 10pt; "><</span><span style="color: #3f7f7f; font-size: 10pt; ">retry-interceptor</span><span style="font-size: 10pt;"> </span><span style="color: #008080; font-size: 10pt; ">/></span><span style="font-size: 10pt;">  <p align="left"><span style="color: #008080; font-size: 10pt; "><</span><span style="color: #3f7f7f; font-size: 10pt; ">environment-interceptor</span><span style="font-size: 10pt;"> </span><span style="color: #008080; font-size: 10pt; ">/></span><span style="font-size: 10pt;"> <p align="left"><span style="color: #008080; font-size: 10pt; "><</span><span style="color: #3f7f7f; font-size: 10pt; ">spring-transaction-interceptor</span><span style="font-size: 10pt;"> </span><span style="color: #008080; font-size: 10pt; ">/></span><span style="font-size: 10pt;"> <p><span style="color: #008080; font-size: 10pt; "></</span><span style="color: #3f7f7f; font-size: 10pt; ">command-service</span><span style="color: #008080; font-size: 10pt; ">></span> </p><p align="left" style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><p align="left" style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><p style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><p><span style="font-size: 10pt; color: #008080;"><span style=": ; color: #008080; font-size: 2; font-color: #008080; "><p align="left"><</p></span><span style="font-color: #008080; font-size: 2; "><p align="left" style="min-height: 8pt; height: 8pt; padding: 0px;"> </p></span></span></p><p align="left"><span style="color: #3f7f7f; font-size: 10pt; ">transaction-context></span></p><span style=": ; font-size: 2; "><p align="left" style="min-height: 8pt; height: 8pt; padding: 0px;"> </p></span><p align="left" style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><p><span style="color: #008080; font-size: 10pt; "><</span><span style="color: #3f7f7f; font-size: 10pt; ">transaction</span><span style="font-size: 10pt;"> </span><span style="color: #7f007f; font-size: 10pt; ">type</span><span style="font-size: 10pt;">=</span><em style=": ; color: #2a00ff; font-size: 10pt; ">"spring"</em><span style="color: #008080; font-size: 10pt; ">/></span><span style=": ; font-size: 2; "><p align="left" style="min-height: 8pt; height: 8pt; padding: 0px;"> </p></span></p><p align="left" style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><p><span style="color: #008080; font-size: 10pt; "><</span><span style="color: #3f7f7f; font-size: 10pt; ">repository-session</span><span style="color: #008080; font-size: 10pt; ">/></span><span style=": ; font-size: 2; "><p align="left" style="min-height: 8pt; height: 8pt; padding: 0px;"> </p></span></p><p align="left" style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><p><span style="color: #008080; font-size: 10pt; "><</span><span style="color: #3f7f7f; font-size: 10pt; ">db-session</span><span style="color: #008080; font-size: 10pt; ">/></span><span style="font-size: 10pt;"> <span style="font-size: 2; "><p align="left" style="min-height: 8pt; height: 8pt; padding: 0px;"> </p></span></span></p><p align="left" style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><p><span style="color: #008080; font-size: 10pt; "><</span><span style="color: #3f7f7f; font-size: 10pt; ">message-session</span><span style="color: #008080; font-size: 10pt; ">/></span><span style=": ; font-size: 2; "><p align="left" style="min-height: 8pt; height: 8pt; padding: 0px;"> </p></span></p><p align="left" style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><p><span style="color: #008080; font-size: 10pt; "><</span><span style="color: #3f7f7f; font-size: 10pt; ">timer-session</span><span style="color: #008080; font-size: 10pt; ">/></span><span style=": ; font-size: 2; "><p align="left" style="min-height: 8pt; height: 8pt; padding: 0px;"> </p></span></p><p align="left" style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><p><span style="color: #008080; font-size: 10pt; "><</span><span style="color: #3f7f7f; font-size: 10pt; ">history-sessions</span><span style="color: #008080; font-size: 10pt; ">></span><span style=": ; font-size: 2; "><p align="left" style="min-height: 8pt; height: 8pt; padding: 0px;"> </p></span></p><p align="left" style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><p><span style="color: #008080; font-size: 10pt; "><</span><span style="color: #3f7f7f; font-size: 10pt; ">object</span><span style="font-size: 10pt;"> </span><span style="color: #7f007f; font-size: 10pt; ">class</span><span style="font-size: 10pt;">=</span><em style=": ; color: #2a00ff; font-size: 10pt; ">"org.jbpm.pvm.internal.history.HistorySessionImpl"</em><span style="color: #008080; font-size: 10pt; ">/></span><span style=": ; font-size: 2; "><p align="left" style="min-height: 8pt; height: 8pt; padding: 0px;"> </p></span></p><p align="left" style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><p><span style="color: #008080; font-size: 10pt; "></</span><span style="color: #3f7f7f; font-size: 10pt; ">history-sessions</span><span style="color: #008080; font-size: 10pt; ">></span><span style="font-size: 10pt;"><p align="left" style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><span style="font-size: 2; "><p align="left" style="min-height: 8pt; height: 8pt; padding: 0px;"> </p></span></span></p><p align="left" style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><p align="left"><span style="color: #3f5fbf; font-size: 10pt; "><!--<p align="left">Need to set explicitly that we don't want <span style="text-decoration: underline;">jbpm</span> to create sessions</p><p align="left">--></p></span></p><span style=": ; font-size: 2; "><p align="left" style="min-height: 8pt; height: 8pt; padding: 0px;"> </p></span><p align="left" style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><p><span style="color: #008080; font-size: 10pt; "><</span><span style="color: #3f7f7f; font-size: 10pt; ">hibernate-session</span><span style="font-size: 10pt;"> </span><span style="color: #7f007f; font-size: 10pt; ">current</span><span style="font-size: 10pt;">=</span><em style=": ; color: #2a00ff; font-size: 10pt; ">"true"</em><span style="font-size: 10pt;"> </span><span style="color: #7f007f; font-size: 10pt; ">close</span><span style="font-size: 10pt;">=</span><em style=": ; color: #2a00ff; font-size: 10pt; ">"false"/</em><span style="color: #008080; font-size: 10pt; ">></span><span style=": ; font-size: 2; "><p style="min-height: 8pt; height: 8pt; padding: 0px;"> </p></span></p><p style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><p><span style="color: #008080; font-size: 10pt; "></</span><span style="color: #3f7f7f; font-size: 10pt; ">transaction-context</span><span style="color: #008080; font-size: 10pt; ">></span></p><p style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><p style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><p style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><p>Can you please let me know how can i solve the same? Please send a response as soon as possible.</p><p style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><p>With Regards,</p><p>Felix K Jose</p><p style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><p style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><p style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><p style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><p style="min-height: 8pt; height: 8pt; padding: 0px;"> </p></span></p><p style="min-height: 8pt; height: 8pt; padding: 0px;"> </p></span></p><p style="min-height: 8pt; height: 8pt; padding: 0px;"> </p></span></p><p style="min-height: 8pt; height: 8pt; padding: 0px;"> </p></span></em><p style="min-height: 8pt; height: 8pt; padding: 0px;"> </p></p></span></p></div>
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