9:11 a.m.
Drools doesn't handle Hibernate in anyway, we have no awareness of it.
The exceptions indicates that you have lazy loading enabled for
hibernate, but your session is disconnected when it tries to lazy load
the object.
Mark
Heyns, Juan wrote:
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$1.protect(TestResult.java:106)
at junit.framework.TestResult.runProtected(TestResult.java:124)
at junit.framework.TestResult.run(TestResult.java:109)
at junit.framework.TestCase.run(TestCase.java:120)
at junit.framework.TestSuite.runTest(TestSuite.java:230)
at junit.framework.TestSuite.run(TestSuite.java:225)
at
org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.runTests(RemoteTestRunner.java:392)
at
org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.run(RemoteTestRunner.java:276)
at
org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.main(RemoteTestRunner.java:167)
org.hibernate.LazyInitializationException: failed to lazily initialize
a collection, no session or session was closed
at
org.hibernate.collection.AbstractPersistentCollection.throwLazyInitializationException(AbstractPersistentCollection.java:358)
at
org.hibernate.collection.AbstractPersistentCollection.throwLazyInitializationExceptionIfNotConnected(AbstractPersistentCollection.java:350)
at
org.hibernate.collection.AbstractPersistentCollection.readElementExistence(AbstractPersistentCollection.java:132)
at
org.hibernate.collection.PersistentSet.contains(PersistentSet.java:153)
at
org.drools.base.evaluators.ObjectFactory$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)
"Employees of Lonmin Platinum ("Lonplats") are not authorised to conclude
electronic transactions or to enter into electronic agreements on behalf
of Lonplats. Any electronic signature (other than an advanced electronic
signature as defined in the Electronic Communications and Transactions
Act of 2003) added to a data message (such as an email or an attachment
to an (email) ostensibly on behalf of Lonplats by a Lonplats employee
shall
not be legally binding on Lonplats and Lonplats shall incur no
liability of
any nature whatsoever, directly or indirectly, arising from such act
on the
part of it's employee. It is further recorded that nothing (other than an
advanced electronic signature) inserted into any data message
emanating from Lonplats shall be construed as constituting an electronic
signature"
------------------------------------------------------------------------
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