[jboss-jira] [JBoss JIRA] (DROOLS-107) NPE when inserting through rule (object already present as derived class)
Jean-Marc Vanel (JIRA)
jira-events at lists.jboss.org
Fri Apr 26 08:06:54 EDT 2013
[ https://issues.jboss.org/browse/DROOLS-107?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12770381#comment-12770381 ]
Jean-Marc Vanel commented on DROOLS-107:
----------------------------------------
Sorry I forgot to tidy the dependencies in the test.
It is now done ( at the same URL's ).
And 5.5.1-SNAPSHOT has the same NPE.
> NPE when inserting through rule (object already present as derived class)
> -------------------------------------------------------------------------
>
> Key: DROOLS-107
> URL: https://issues.jboss.org/browse/DROOLS-107
> Project: Drools
> Issue Type: Bug
> Security Level: Public(Everyone can see)
> Affects Versions: 5.5.0.Final
> Environment: % java -version
> java version "1.7.0_21"
> Java(TM) SE Runtime Environment (build 1.7.0_21-b11)
> Java HotSpot(TM) 64-Bit Server VM (build 23.21-b01, mixed mode)
> % uname -a
> Linux oem-laptop 3.5.0-28-generic #47-Ubuntu SMP Tue Apr 9 19:03:54 UTC 2013 x86_64 x86_64 x86_64 GNU/Linux
> Reporter: Jean-Marc Vanel
> Assignee: Mark Proctor
>
> NPE : unit test which depends only on 3 non Drools simple classes : Assignment, Triple, TripleUser
> unit test has 2 rules , 5 inserts, 3 fireAllRules : the last one makes the NPE.
> TestDroolsNPE.testRunRulesBefore
> testRunRulesBefore(eulergui.project.TestDroolsNPE)
> Exception executing consequence for rule "project-java-rules2.n3 0" in project_java_rules2_n3_1: java.lang.NullPointerException
> at org.drools.runtime.rule.impl.DefaultConsequenceExceptionHandler.handleException(DefaultConsequenceExceptionHandler.java:39)
> at org.drools.common.DefaultAgenda.fireActivation(DefaultAgenda.java:1297)
> at org.drools.common.DefaultAgenda.fireNextItem(DefaultAgenda.java:1221)
> at org.drools.common.DefaultAgenda.fireAllRules(DefaultAgenda.java:1456)
> at org.drools.common.AbstractWorkingMemory.fireAllRules(AbstractWorkingMemory.java:710)
> at org.drools.common.AbstractWorkingMemory.fireAllRules(AbstractWorkingMemory.java:674)
> at org.drools.impl.StatefulKnowledgeSessionImpl.fireAllRules(StatefulKnowledgeSessionImpl.java:230)
> at eulergui.project.TestDroolsNPE.testRunRulesBefore(TestDroolsNPE.java:110)
> at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
> at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57)
> at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
> at java.lang.reflect.Method.invoke(Method.java:601)
> at junit.framework.TestCase.runTest(TestCase.java:176)
> at junit.framework.TestCase.runBare(TestCase.java:141)
> at junit.framework.TestResult$1.protect(TestResult.java:122)
> at junit.framework.TestResult.runProtected(TestResult.java:142)
> at junit.framework.TestResult.run(TestResult.java:125)
> at junit.framework.TestCase.run(TestCase.java:129)
> at junit.framework.TestSuite.runTest(TestSuite.java:255)
> at junit.framework.TestSuite.run(TestSuite.java:250)
> at org.junit.internal.runners.JUnit38ClassRunner.run(JUnit38ClassRunner.java:84)
> at org.eclipse.jdt.internal.junit4.runner.JUnit4TestReference.run(JUnit4TestReference.java:50)
> at org.eclipse.jdt.internal.junit.runner.TestExecution.run(TestExecution.java:38)
> at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.runTests(RemoteTestRunner.java:467)
> at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.runTests(RemoteTestRunner.java:683)
> at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.run(RemoteTestRunner.java:390)
> at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.main(RemoteTestRunner.java:197)
> Caused by: java.lang.NullPointerException
> at org.drools.common.NamedEntryPoint.insert(NamedEntryPoint.java:196)
> at org.drools.common.AbstractWorkingMemory.insert(AbstractWorkingMemory.java:903)
> at org.drools.base.DefaultKnowledgeHelper.insertLogical(DefaultKnowledgeHelper.java:245)
> at org.drools.base.DefaultKnowledgeHelper.insertLogical(DefaultKnowledgeHelper.java:210)
> at org.drools.base.DefaultKnowledgeHelper.insertLogical(DefaultKnowledgeHelper.java:205)
> at project_java_rules2_n3_1.Rule_project_java_rules2_n3_0_dd5596b676034b1fb5b32877015997e3.defaultConsequence(Rule_project_java_rules2_n3_0_dd5596b676034b1fb5b32877015997e3.java:12)
> at project_java_rules2_n3_1.Rule_project_java_rules2_n3_0_dd5596b676034b1fb5b32877015997e3DefaultConsequenceInvokerGenerated.evaluate(Unknown Source)
> at project_java_rules2_n3_1.Rule_project_java_rules2_n3_0_dd5596b676034b1fb5b32877015997e3DefaultConsequenceInvoker.evaluate(Unknown Source)
> at org.drools.common.DefaultAgenda.fireActivation(DefaultAgenda.java:1287)
> ... 25 more
> in class NamedEntryPoint :
>
> protected FactHandle insert(final Object object,
> final Object tmsValue,
> final boolean dynamic,
> boolean logical,
> final Rule rule,
> final Activation activation) throws FactException {
> if ( object == null ) {
> // you cannot assert a null object
> return null;
> }
>
> try {
> this.wm.startOperation();
>
> ObjectTypeConf typeConf = this.typeConfReg.getObjectTypeConf( this.entryPoint,
> object );
> if ( logical && !typeConf.isTMSEnabled()) {
> enableTMS(object, typeConf);
> }
>
> InternalFactHandle handle = null;
>
> if ( this.wm.isSequential() ) {
> handle = createHandle( object,
> typeConf );
> insert( handle,
> object,
> rule,
> activation,
> typeConf );
> return handle;
> }
> try {
> this.lock.lock();
> this.ruleBase.readLock();
> // check if the object already exists in the WM
> handle = this.objectStore.getHandleForObject( object );
>
> if ( typeConf.isTMSEnabled() ) {
>
> EqualityKey key;
>
> TruthMaintenanceSystem tms = wm.getTruthMaintenanceSystem();
> if ( handle == null ) {
> // lets see if the object is already logical asserted
> key = tms.get( object );
> } else {
> // Object is already asserted, so check and possibly correct its
> // status and then return the handle
> key = handle.getEqualityKey();
>
> if ( key.getStatus() == EqualityKey.STATED ) {
>
> // key == null here !!!!!!!!!!!!!!!!!!!
> // conf.setAssertBehaviour( AssertBehaviour.EQUALITY );
>
> when rule inserts Triple :
> <file:/home/jmv/src/eulergui-code/eulergui/test/import.n3p.n3> <http://www.w3.org/1999/02/22-rdf-syntax-ns#type> <http://www.w3.org/2002/07/owl#Ontology> .
>
> that is already present, as a TripleUser extends Triple, but equals() and hashCode() are the same ;
> this object is both asserted and inferred as a Triple object
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