12:19 p.m.
Accumulate function with null check fails
-----------------------------------------
Key: JBRULES-2980
URL: https://issues.jboss.org/browse/JBRULES-2980
Project: Drools
Issue Type: Bug
Security Level: Public (Everyone can see)
Affects Versions: 5.2.0.M2
Environment: Windows Java 5
Reporter: Joe White
Assignee: Mark Proctor
When running the rule below the exception below occurs. Works on 5.0.1. Unit test
attached
**********************RULE*********************
package accumsTest
import java.util.Map;
import java.util.ArrayList;
dialect "mvel"
rule "Accum test rule"
salience 155
when
$episode: Map()
$commonVisits : ArrayList() from accumulate( Map( $selectedCv : this["KEY"] !=
null) from $episode,
init(ArrayList selIns = new ArrayList();),
action(selIns.addAll($selectedCv);),
result(selIns)
)
then
System.out.println("HIT");
retract($episode);
end
*******************EXCEPTION********************
java.lang.NullPointerException
at
org.drools.common.ObjectTypeConfigurationRegistry.getObjectTypeConf(ObjectTypeConfigurationRegistry.java:58)
at org.drools.reteoo.AccumulateNode.evaluateResultConstraints(AccumulateNode.java:598)
at org.drools.reteoo.AccumulateNode.assertLeftTuple(AccumulateNode.java:181)
at
org.drools.reteoo.CompositeLeftTupleSinkAdapter.doPropagateAssertLeftTuple(CompositeLeftTupleSinkAdapter.java:222)
at
org.drools.reteoo.CompositeLeftTupleSinkAdapter.createAndPropagateAssertLeftTuple(CompositeLeftTupleSinkAdapter.java:108)
at org.drools.reteoo.LeftInputAdapterNode.assertObject(LeftInputAdapterNode.java:141)
at
org.drools.reteoo.SingleObjectSinkAdapter.propagateAssertObject(SingleObjectSinkAdapter.java:59)
at org.drools.reteoo.ObjectTypeNode.assertObject(ObjectTypeNode.java:185)
at org.drools.reteoo.EntryPointNode.assertObject(EntryPointNode.java:143)
at org.drools.common.NamedEntryPoint.insert(NamedEntryPoint.java:332)
at org.drools.common.NamedEntryPoint.insert(NamedEntryPoint.java:293)
at org.drools.common.AbstractWorkingMemory.insert(AbstractWorkingMemory.java:905)
at org.drools.common.AbstractWorkingMemory.insert(AbstractWorkingMemory.java:864)
at
org.drools.impl.StatefulKnowledgeSessionImpl.insert(StatefulKnowledgeSessionImpl.java:251)
at com.recondotech.droolsTest.AccumTest.testUpdate(AccumTest.java:48)
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:592)
at org.junit.runners.model.FrameworkMethod$1.runReflectiveCall(FrameworkMethod.java:44)
at org.junit.internal.runners.model.ReflectiveCallable.run(ReflectiveCallable.java:15)
at org.junit.runners.model.FrameworkMethod.invokeExplosively(FrameworkMethod.java:41)
at org.junit.internal.runners.statements.InvokeMethod.evaluate(InvokeMethod.java:20)
at org.junit.internal.runners.statements.RunBefores.evaluate(RunBefores.java:28)
at org.junit.internal.runners.statements.RunAfters.evaluate(RunAfters.java:31)
at org.junit.runners.BlockJUnit4ClassRunner.runChild(BlockJUnit4ClassRunner.java:73)
at org.junit.runners.BlockJUnit4ClassRunner.runChild(BlockJUnit4ClassRunner.java:46)
at org.junit.runners.ParentRunner.runChildren(ParentRunner.java:180)
at org.junit.runners.ParentRunner.access$000(ParentRunner.java:41)
at org.junit.runners.ParentRunner$1.evaluate(ParentRunner.java:173)
at org.junit.internal.runners.statements.RunBefores.evaluate(RunBefores.java:28)
at org.junit.internal.runners.statements.RunAfters.evaluate(RunAfters.java:31)
at org.junit.runners.ParentRunner.run(ParentRunner.java:220)
at
org.eclipse.jdt.internal.junit4.runner.JUnit4TestReference.run(JUnit4TestReference.java:46)
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)
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