Hi,

I am getting the following error with 4.0.1, I didn’t get this with 4.0.0… Has anything changed in the way Drools works with Hibernate.

Juan

15:24:52,281 ERROR LazyInitializationException:19 - failed to lazily initialize a collection, no session or session was closed

org.hibernate.LazyInitializationException: failed to lazily initialize a collection, no session or session was closed

at org.hibernate.collection.AbstractPersistentCollection.throwLazyInitializationException(AbstractPersistentCollection.java:358)

at org.hibernate.collection.AbstractPersistentCollection.throwLazyInitializationExceptionIfNotConnected(AbstractPersistentCollection.java:350)

at org.hibernate.collection.AbstractPersistentCollection.readElementExistence(AbstractPersistentCollection.java:132)

at org.hibernate.collection.PersistentSet.contains(PersistentSet.java:153)

at org.drools.base.evaluators.ObjectFactory$ObjectContainsEvaluator.evaluateCachedLeft(ObjectFactory.java:481)

at org.drools.rule.VariableRestriction.isAllowedCachedLeft(VariableRestriction.java:72)

at org.drools.rule.VariableConstraint.isAllowedCachedLeft(VariableConstraint.java:72)

at org.drools.common.SingleBetaConstraints.isAllowedCachedLeft(SingleBetaConstraints.java:117)

at org.drools.reteoo.JoinNode.assertTuple(JoinNode.java:119)

at org.drools.reteoo.CompositeTupleSinkAdapter.createAndPropagateAssertTuple(CompositeTupleSinkAdapter.java:73)

at org.drools.reteoo.LeftInputAdapterNode.assertObject(LeftInputAdapterNode.java:131)

at org.drools.reteoo.SingleObjectSinkAdapter.propagateAssertObject(SingleObjectSinkAdapter.java:20)

at org.drools.reteoo.ObjectTypeNode.assertObject(ObjectTypeNode.java:160)

at org.drools.reteoo.Rete.assertObject(Rete.java:176)

at org.drools.reteoo.ReteooRuleBase.assertObject(ReteooRuleBase.java:196)

at org.drools.reteoo.ReteooWorkingMemory.doInsert(ReteooWorkingMemory.java:70)

at org.drools.common.AbstractWorkingMemory.insert(AbstractWorkingMemory.java:854)

at org.drools.common.AbstractWorkingMemory.insert(AbstractWorkingMemory.java:826)

at org.drools.base.DefaultKnowledgeHelper.insert(DefaultKnowledgeHelper.java:60)

at org.drools.base.DefaultKnowledgeHelper.insert(DefaultKnowledgeHelper.java:54)

at com.lonmin.bns.domain.rules.Rule_Stope_Drilling_work_is_evaluated_based_on_the_holes_drilled_and_blasts_0.consequence(Rule_Stope_Drilling_work_is_evaluated_based_on_the_holes_drilled_and_blasts_0.java:35)

at com.lonmin.bns.domain.rules.Rule_Stope_Drilling_work_is_evaluated_based_on_the_holes_drilled_and_blasts_0ConsequenceInvoker.evaluate(Rule_Stope_Drilling_work_is_evaluated_based_on_the_holes_drilled_and_blasts_0ConsequenceInvoker.java:22)

at org.drools.common.DefaultAgenda.fireActivation(DefaultAgenda.java:550)

at org.drools.common.DefaultAgenda.fireNextItem(DefaultAgenda.java:514)

at org.drools.common.AbstractWorkingMemory.fireAllRules(AbstractWorkingMemory.java:434)

at org.drools.common.AbstractWorkingMemory.fireAllRules(AbstractWorkingMemory.java:396)

at com.lonmin.bns.domain.rules.RulesEngine.calculateStopeDrillingBonus(RulesEngine.java:54)

at com.lonmin.bns.domain.model.StopeDrillingCardPersister.processDetail(StopeDrillingCardPersister.java:371)

at com.lonmin.bns.domain.model.StopeDrillingCardPersister.processCard(StopeDrillingCardPersister.java:276)

at com.lonmin.bns.domain.model.StopeDrillingCardPersister.process(StopeDrillingCardPersister.java:69)

at com.lonmin.bns.domain.model.ValueObjectPersister.persist(ValueObjectPersister.java:38)

at com.lonmin.bns.domain.model.StopeDrillingCardPersisterTest.testEditStopeDrillingCard(StopeDrillingCardPersisterTest.java:182)

at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)

at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)

at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)

at java.lang.reflect.Method.invoke(Method.java:324)

at junit.framework.TestCase.runTest(TestCase.java:164)

at junit.framework.TestCase.runBare(TestCase.java:130)

at junit.framework.TestResult$1.protect(TestResult.java:106)

at junit.framework.TestResult.runProtected(TestResult.java:124)

at junit.framework.TestResult.run(TestResult.java:109)

at junit.framework.TestCase.run(TestCase.java:120)

at junit.framework.TestSuite.runTest(TestSuite.java:230)

at junit.framework.TestSuite.run(TestSuite.java:225)

at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.runTests(RemoteTestRunner.java:392)

at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.run(RemoteTestRunner.java:276)

at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.main(RemoteTestRunner.java:167)