3:48 a.m.
AccumulateNode runs into NPE
----------------------------
Key: JBRULES-2887
URL: https://issues.jboss.org/browse/JBRULES-2887
Project: Drools
Issue Type: Bug
Security Level: Public (Everyone can see)
Components: drools-core
Affects Versions: 5.1.1.FINAL
Reporter: Wolfgang Laun
Assignee: Mark Proctor
Fix For: 5.2.0.M1
A rule such as
rule "average"
when
B( id < 10 )
$list: List() from collect ( A() over window:time(10s) )
Number( $avg: doubleValue ) from accumulate( A( $id : id ) from $list, average(
$id ) )
then
System.out.println( "average = " + $avg );
end
runs into a NPE
Caused by: java.lang.NullPointerException
at org.drools.reteoo.AccumulateNode.getFirstMatch(AccumulateNode.java:967)
at org.drools.reteoo.AccumulateNode.splitList(AccumulateNode.java:920)
at
org.drools.reteoo.AccumulateNode.removePreviousMatchesForLeftTuple(AccumulateNode.java:874)
at org.drools.reteoo.AccumulateNode.retractLeftTuple(AccumulateNode.java:205)
at
org.drools.reteoo.CompositeLeftTupleSinkAdapter.doPropagateRetractLeftTuple(CompositeLeftTupleSinkAdapter.java:238)
at
org.drools.reteoo.CompositeLeftTupleSinkAdapter.propagateRetractLeftTupleDestroyRightTuple(CompositeLeftTupleSinkAdapter.java:138)
at org.drools.reteoo.AccumulateNode.retractLeftTuple(AccumulateNode.java:212)
at org.drools.reteoo.ModifyPreviousTuples.retractTuples(ModifyPreviousTuples.java:111)
at org.drools.reteoo.EntryPointNode.modifyObject(EntryPointNode.java:176)
at org.drools.common.NamedEntryPoint.update(NamedEntryPoint.java:450)
at org.drools.common.NamedEntryPoint.update(NamedEntryPoint.java:361)
at org.drools.base.DefaultKnowledgeHelper.update(DefaultKnowledgeHelper.java:183)
at org.drools.base.DefaultKnowledgeHelper.update(DefaultKnowledgeHelper.java:196)
at event.Rule_launch_0.defaultConsequence(Rule_launch_0.java:7)
at
event.Rule_launch_0DefaultConsequenceInvoker.evaluate(Rule_launch_0DefaultConsequenceInvoker.java:33)
at org.drools.common.DefaultAgenda.fireActivation(DefaultAgenda.java:913)
A null Parameter accctx is passed down from retractLeftTuple.
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3:27 a.m.
New subject: [JBoss JIRA] Commented: (JBRULES-2887) AccumulateNode runs into NPE
[
https://issues.jboss.org/browse/JBRULES-2887?page=com.atlassian.jira.plug...
]
Wolfgang Laun commented on JBRULES-2887:
----------------------------------------
The NPE can be avoided by testing accctx != null in retractLeftTuple and avoid calling
removePreviousMatchesForLeftTuple and executing the if statement. But this method calls
other methods, and it's not clear to me whether this would skip some essential
activity.
Also, it could be that the returned value shouldn't be null at all, and so s.th. else
is broken.
AccumulateNode runs into NPE
----------------------------
Key: JBRULES-2887
URL: https://issues.jboss.org/browse/JBRULES-2887
Project: Drools
Issue Type: Bug
Security Level: Public(Everyone can see)
Components: drools-core
Affects Versions: 5.1.1.FINAL
Reporter: Wolfgang Laun
Assignee: Mark Proctor
Fix For: 5.2.0.M1
A rule such as
rule "average"
when
B( id < 10 )
$list: List() from collect ( A() over window:time(10s) )
Number( $avg: doubleValue ) from accumulate( A( $id : id ) from $list,
average( $id ) )
then
System.out.println( "average = " + $avg );
end
runs into a NPE
Caused by: java.lang.NullPointerException
at org.drools.reteoo.AccumulateNode.getFirstMatch(AccumulateNode.java:967)
at org.drools.reteoo.AccumulateNode.splitList(AccumulateNode.java:920)
at
org.drools.reteoo.AccumulateNode.removePreviousMatchesForLeftTuple(AccumulateNode.java:874)
at org.drools.reteoo.AccumulateNode.retractLeftTuple(AccumulateNode.java:205)
at
org.drools.reteoo.CompositeLeftTupleSinkAdapter.doPropagateRetractLeftTuple(CompositeLeftTupleSinkAdapter.java:238)
at
org.drools.reteoo.CompositeLeftTupleSinkAdapter.propagateRetractLeftTupleDestroyRightTuple(CompositeLeftTupleSinkAdapter.java:138)
at org.drools.reteoo.AccumulateNode.retractLeftTuple(AccumulateNode.java:212)
at org.drools.reteoo.ModifyPreviousTuples.retractTuples(ModifyPreviousTuples.java:111)
at org.drools.reteoo.EntryPointNode.modifyObject(EntryPointNode.java:176)
at org.drools.common.NamedEntryPoint.update(NamedEntryPoint.java:450)
at org.drools.common.NamedEntryPoint.update(NamedEntryPoint.java:361)
at org.drools.base.DefaultKnowledgeHelper.update(DefaultKnowledgeHelper.java:183)
at org.drools.base.DefaultKnowledgeHelper.update(DefaultKnowledgeHelper.java:196)
at event.Rule_launch_0.defaultConsequence(Rule_launch_0.java:7)
at
event.Rule_launch_0DefaultConsequenceInvoker.evaluate(Rule_launch_0DefaultConsequenceInvoker.java:33)
at org.drools.common.DefaultAgenda.fireActivation(DefaultAgenda.java:913)
A null Parameter accctx is passed down from retractLeftTuple.
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3:37 a.m.
New subject: [JBoss JIRA] Updated: (JBRULES-2887) AccumulateNode runs into NPE
[
https://issues.jboss.org/browse/JBRULES-2887?page=com.atlassian.jira.plug...
]
Wolfgang Laun updated JBRULES-2887:
-----------------------------------
Priority: Critical (was: Major)
Raised to Critical, since there is another scenario resulting in an NPE at the same
location but with a different calling sequence leading to it. A complete testcase (Manuel
Ortiz++) is available.
AccumulateNode runs into NPE
----------------------------
Key: JBRULES-2887
URL: https://issues.jboss.org/browse/JBRULES-2887
Project: Drools
Issue Type: Bug
Security Level: Public(Everyone can see)
Components: drools-core
Affects Versions: 5.1.1.FINAL
Reporter: Wolfgang Laun
Assignee: Mark Proctor
Priority: Critical
Fix For: 5.2.0.M1
Attachments: DroolsTest.java
A rule such as
rule "average"
when
B( id < 10 )
$list: List() from collect ( A() over window:time(10s) )
Number( $avg: doubleValue ) from accumulate( A( $id : id ) from $list,
average( $id ) )
then
System.out.println( "average = " + $avg );
end
runs into a NPE
Caused by: java.lang.NullPointerException
at org.drools.reteoo.AccumulateNode.getFirstMatch(AccumulateNode.java:967)
at org.drools.reteoo.AccumulateNode.splitList(AccumulateNode.java:920)
at
org.drools.reteoo.AccumulateNode.removePreviousMatchesForLeftTuple(AccumulateNode.java:874)
at org.drools.reteoo.AccumulateNode.retractLeftTuple(AccumulateNode.java:205)
at
org.drools.reteoo.CompositeLeftTupleSinkAdapter.doPropagateRetractLeftTuple(CompositeLeftTupleSinkAdapter.java:238)
at
org.drools.reteoo.CompositeLeftTupleSinkAdapter.propagateRetractLeftTupleDestroyRightTuple(CompositeLeftTupleSinkAdapter.java:138)
at org.drools.reteoo.AccumulateNode.retractLeftTuple(AccumulateNode.java:212)
at org.drools.reteoo.ModifyPreviousTuples.retractTuples(ModifyPreviousTuples.java:111)
at org.drools.reteoo.EntryPointNode.modifyObject(EntryPointNode.java:176)
at org.drools.common.NamedEntryPoint.update(NamedEntryPoint.java:450)
at org.drools.common.NamedEntryPoint.update(NamedEntryPoint.java:361)
at org.drools.base.DefaultKnowledgeHelper.update(DefaultKnowledgeHelper.java:183)
at org.drools.base.DefaultKnowledgeHelper.update(DefaultKnowledgeHelper.java:196)
at event.Rule_launch_0.defaultConsequence(Rule_launch_0.java:7)
at
event.Rule_launch_0DefaultConsequenceInvoker.evaluate(Rule_launch_0DefaultConsequenceInvoker.java:33)
at org.drools.common.DefaultAgenda.fireActivation(DefaultAgenda.java:913)
A null Parameter accctx is passed down from retractLeftTuple.
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3:37 a.m.
New subject: [JBoss JIRA] Updated: (JBRULES-2887) AccumulateNode runs into NPE
[
https://issues.jboss.org/browse/JBRULES-2887?page=com.atlassian.jira.plug...
]
Wolfgang Laun updated JBRULES-2887:
-----------------------------------
Attachment: DroolsTest.java
AccumulateNode runs into NPE
----------------------------
Key: JBRULES-2887
URL: https://issues.jboss.org/browse/JBRULES-2887
Project: Drools
Issue Type: Bug
Security Level: Public(Everyone can see)
Components: drools-core
Affects Versions: 5.1.1.FINAL
Reporter: Wolfgang Laun
Assignee: Mark Proctor
Priority: Critical
Fix For: 5.2.0.M1
Attachments: DroolsTest.java
A rule such as
rule "average"
when
B( id < 10 )
$list: List() from collect ( A() over window:time(10s) )
Number( $avg: doubleValue ) from accumulate( A( $id : id ) from $list,
average( $id ) )
then
System.out.println( "average = " + $avg );
end
runs into a NPE
Caused by: java.lang.NullPointerException
at org.drools.reteoo.AccumulateNode.getFirstMatch(AccumulateNode.java:967)
at org.drools.reteoo.AccumulateNode.splitList(AccumulateNode.java:920)
at
org.drools.reteoo.AccumulateNode.removePreviousMatchesForLeftTuple(AccumulateNode.java:874)
at org.drools.reteoo.AccumulateNode.retractLeftTuple(AccumulateNode.java:205)
at
org.drools.reteoo.CompositeLeftTupleSinkAdapter.doPropagateRetractLeftTuple(CompositeLeftTupleSinkAdapter.java:238)
at
org.drools.reteoo.CompositeLeftTupleSinkAdapter.propagateRetractLeftTupleDestroyRightTuple(CompositeLeftTupleSinkAdapter.java:138)
at org.drools.reteoo.AccumulateNode.retractLeftTuple(AccumulateNode.java:212)
at org.drools.reteoo.ModifyPreviousTuples.retractTuples(ModifyPreviousTuples.java:111)
at org.drools.reteoo.EntryPointNode.modifyObject(EntryPointNode.java:176)
at org.drools.common.NamedEntryPoint.update(NamedEntryPoint.java:450)
at org.drools.common.NamedEntryPoint.update(NamedEntryPoint.java:361)
at org.drools.base.DefaultKnowledgeHelper.update(DefaultKnowledgeHelper.java:183)
at org.drools.base.DefaultKnowledgeHelper.update(DefaultKnowledgeHelper.java:196)
at event.Rule_launch_0.defaultConsequence(Rule_launch_0.java:7)
at
event.Rule_launch_0DefaultConsequenceInvoker.evaluate(Rule_launch_0DefaultConsequenceInvoker.java:33)
at org.drools.common.DefaultAgenda.fireActivation(DefaultAgenda.java:913)
A null Parameter accctx is passed down from retractLeftTuple.
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3:39 a.m.
New subject: [JBoss JIRA] Updated: (JBRULES-2887) AccumulateNode runs into NPE
[
https://issues.jboss.org/browse/JBRULES-2887?page=com.atlassian.jira.plug...
]
Wolfgang Laun updated JBRULES-2887:
-----------------------------------
Attachment: SampleAlarmRules.drl
Manuel Ortiz:
The strange interaction is as follows:
* As Rule 5 is not fired, everything is OK.
* After Rule 5 firing, the next Rule 4 firing which leads to a new Rule 5 activation
fails with NullPointerException in AccumulateNode.
* If Rule 6 is not included in the rule set, Rule 5 is activated and fired OK for every
occasion.
AccumulateNode runs into NPE
----------------------------
Key: JBRULES-2887
URL: https://issues.jboss.org/browse/JBRULES-2887
Project: Drools
Issue Type: Bug
Security Level: Public(Everyone can see)
Components: drools-core
Affects Versions: 5.1.1.FINAL
Reporter: Wolfgang Laun
Assignee: Mark Proctor
Priority: Critical
Fix For: 5.2.0.M1
Attachments: DroolsTest.java, SampleAlarmRules.drl
A rule such as
rule "average"
when
B( id < 10 )
$list: List() from collect ( A() over window:time(10s) )
Number( $avg: doubleValue ) from accumulate( A( $id : id ) from $list,
average( $id ) )
then
System.out.println( "average = " + $avg );
end
runs into a NPE
Caused by: java.lang.NullPointerException
at org.drools.reteoo.AccumulateNode.getFirstMatch(AccumulateNode.java:967)
at org.drools.reteoo.AccumulateNode.splitList(AccumulateNode.java:920)
at
org.drools.reteoo.AccumulateNode.removePreviousMatchesForLeftTuple(AccumulateNode.java:874)
at org.drools.reteoo.AccumulateNode.retractLeftTuple(AccumulateNode.java:205)
at
org.drools.reteoo.CompositeLeftTupleSinkAdapter.doPropagateRetractLeftTuple(CompositeLeftTupleSinkAdapter.java:238)
at
org.drools.reteoo.CompositeLeftTupleSinkAdapter.propagateRetractLeftTupleDestroyRightTuple(CompositeLeftTupleSinkAdapter.java:138)
at org.drools.reteoo.AccumulateNode.retractLeftTuple(AccumulateNode.java:212)
at org.drools.reteoo.ModifyPreviousTuples.retractTuples(ModifyPreviousTuples.java:111)
at org.drools.reteoo.EntryPointNode.modifyObject(EntryPointNode.java:176)
at org.drools.common.NamedEntryPoint.update(NamedEntryPoint.java:450)
at org.drools.common.NamedEntryPoint.update(NamedEntryPoint.java:361)
at org.drools.base.DefaultKnowledgeHelper.update(DefaultKnowledgeHelper.java:183)
at org.drools.base.DefaultKnowledgeHelper.update(DefaultKnowledgeHelper.java:196)
at event.Rule_launch_0.defaultConsequence(Rule_launch_0.java:7)
at
event.Rule_launch_0DefaultConsequenceInvoker.evaluate(Rule_launch_0DefaultConsequenceInvoker.java:33)
at org.drools.common.DefaultAgenda.fireActivation(DefaultAgenda.java:913)
A null Parameter accctx is passed down from retractLeftTuple.
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1:45 a.m.
New subject: [JBoss JIRA] Commented: (JBRULES-2887) AccumulateNode runs into NPE
[
https://issues.jboss.org/browse/JBRULES-2887?page=com.atlassian.jira.plug...
]
Wolfgang Laun commented on JBRULES-2887:
----------------------------------------
Manuel Ortiz:
I've executed several times the SampleAlarmRules scenario and found that the problem
in that scenario is the existence of a JoinNode (Node 18) which feeds two nodes, a
JoinNode (Node 20) and an AccumlateNode (Node 25, the one in which NPE occurs). I've
seen that the child tuples of a join node are interconnected via pointers and that those
connections must be updated every time a parent tuple of the join node is modified, via
reAddLeft and reAddRight tuple methods. When a JoinNode feeds two or more nodes, the child
tuples are interconnected in a ordered way that mixes tuples with different sinks.
In the SampleAlarmRules scenario, when JoinNode18 is right modified, the
CompositeLeftTupleSinkAdapter processes several child tuples, but only the last one is
returned and reAddLeft'ed, hence breaking the child tuple relations which it seems
necessary to keep rete coherence. After this right modify, the next left modify fails
because a child tuple related to one node of the composite sink is used to check the next
operation to do in another sink node different from the first one. This leads to a chain
of incorrect assertions which ends in the AccumulateNode NPE.
AccumulateNode runs into NPE
----------------------------
Key: JBRULES-2887
URL: https://issues.jboss.org/browse/JBRULES-2887
Project: Drools
Issue Type: Bug
Security Level: Public(Everyone can see)
Components: drools-core
Affects Versions: 5.1.1.FINAL
Reporter: Wolfgang Laun
Assignee: Mark Proctor
Priority: Critical
Fix For: 5.2.0.M1
Attachments: DroolsTest.java, SampleAlarmRules.drl
A rule such as
rule "average"
when
B( id < 10 )
$list: List() from collect ( A() over window:time(10s) )
Number( $avg: doubleValue ) from accumulate( A( $id : id ) from $list,
average( $id ) )
then
System.out.println( "average = " + $avg );
end
runs into a NPE
Caused by: java.lang.NullPointerException
at org.drools.reteoo.AccumulateNode.getFirstMatch(AccumulateNode.java:967)
at org.drools.reteoo.AccumulateNode.splitList(AccumulateNode.java:920)
at
org.drools.reteoo.AccumulateNode.removePreviousMatchesForLeftTuple(AccumulateNode.java:874)
at org.drools.reteoo.AccumulateNode.retractLeftTuple(AccumulateNode.java:205)
at
org.drools.reteoo.CompositeLeftTupleSinkAdapter.doPropagateRetractLeftTuple(CompositeLeftTupleSinkAdapter.java:238)
at
org.drools.reteoo.CompositeLeftTupleSinkAdapter.propagateRetractLeftTupleDestroyRightTuple(CompositeLeftTupleSinkAdapter.java:138)
at org.drools.reteoo.AccumulateNode.retractLeftTuple(AccumulateNode.java:212)
at org.drools.reteoo.ModifyPreviousTuples.retractTuples(ModifyPreviousTuples.java:111)
at org.drools.reteoo.EntryPointNode.modifyObject(EntryPointNode.java:176)
at org.drools.common.NamedEntryPoint.update(NamedEntryPoint.java:450)
at org.drools.common.NamedEntryPoint.update(NamedEntryPoint.java:361)
at org.drools.base.DefaultKnowledgeHelper.update(DefaultKnowledgeHelper.java:183)
at org.drools.base.DefaultKnowledgeHelper.update(DefaultKnowledgeHelper.java:196)
at event.Rule_launch_0.defaultConsequence(Rule_launch_0.java:7)
at
event.Rule_launch_0DefaultConsequenceInvoker.evaluate(Rule_launch_0DefaultConsequenceInvoker.java:33)
at org.drools.common.DefaultAgenda.fireActivation(DefaultAgenda.java:913)
A null Parameter accctx is passed down from retractLeftTuple.
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7:40 a.m.
New subject: [JBoss JIRA] Resolved: (JBRULES-2887) AccumulateNode runs into NPE
[
https://issues.jboss.org/browse/JBRULES-2887?page=com.atlassian.jira.plug...
]
Edson Tirelli resolved JBRULES-2887.
------------------------------------
Assignee: Edson Tirelli (was: Mark Proctor)
Resolution: Duplicate Issue
I checked Manuel's fix and it is equivalent to the fix in JBRULES-2810. So I am
closing this ticket as a duplicate. Feel free to re-open if you later find any other
related problem.
AccumulateNode runs into NPE
----------------------------
Key: JBRULES-2887
URL: https://issues.jboss.org/browse/JBRULES-2887
Project: Drools
Issue Type: Bug
Security Level: Public(Everyone can see)
Components: drools-core
Affects Versions: 5.1.1.FINAL
Reporter: Wolfgang Laun
Assignee: Edson Tirelli
Priority: Critical
Fix For: 5.2.0.M1
Attachments: DroolsTest.java, SampleAlarmRules.drl
A rule such as
rule "average"
when
B( id < 10 )
$list: List() from collect ( A() over window:time(10s) )
Number( $avg: doubleValue ) from accumulate( A( $id : id ) from $list,
average( $id ) )
then
System.out.println( "average = " + $avg );
end
runs into a NPE
Caused by: java.lang.NullPointerException
at org.drools.reteoo.AccumulateNode.getFirstMatch(AccumulateNode.java:967)
at org.drools.reteoo.AccumulateNode.splitList(AccumulateNode.java:920)
at
org.drools.reteoo.AccumulateNode.removePreviousMatchesForLeftTuple(AccumulateNode.java:874)
at org.drools.reteoo.AccumulateNode.retractLeftTuple(AccumulateNode.java:205)
at
org.drools.reteoo.CompositeLeftTupleSinkAdapter.doPropagateRetractLeftTuple(CompositeLeftTupleSinkAdapter.java:238)
at
org.drools.reteoo.CompositeLeftTupleSinkAdapter.propagateRetractLeftTupleDestroyRightTuple(CompositeLeftTupleSinkAdapter.java:138)
at org.drools.reteoo.AccumulateNode.retractLeftTuple(AccumulateNode.java:212)
at org.drools.reteoo.ModifyPreviousTuples.retractTuples(ModifyPreviousTuples.java:111)
at org.drools.reteoo.EntryPointNode.modifyObject(EntryPointNode.java:176)
at org.drools.common.NamedEntryPoint.update(NamedEntryPoint.java:450)
at org.drools.common.NamedEntryPoint.update(NamedEntryPoint.java:361)
at org.drools.base.DefaultKnowledgeHelper.update(DefaultKnowledgeHelper.java:183)
at org.drools.base.DefaultKnowledgeHelper.update(DefaultKnowledgeHelper.java:196)
at event.Rule_launch_0.defaultConsequence(Rule_launch_0.java:7)
at
event.Rule_launch_0DefaultConsequenceInvoker.evaluate(Rule_launch_0DefaultConsequenceInvoker.java:33)
at org.drools.common.DefaultAgenda.fireActivation(DefaultAgenda.java:913)
A null Parameter accctx is passed down from retractLeftTuple.
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12:54 p.m.
New subject: [JBoss JIRA] Reopened: (JBRULES-2887) AccumulateNode runs into NPE
[
https://issues.jboss.org/browse/JBRULES-2887?page=com.atlassian.jira.plug...
]
Tihomir Surdilovic reopened JBRULES-2887:
-----------------------------------------
AccumulateNode runs into NPE
----------------------------
Key: JBRULES-2887
URL: https://issues.jboss.org/browse/JBRULES-2887
Project: Drools
Issue Type: Bug
Security Level: Public(Everyone can see)
Components: drools-core
Affects Versions: 5.1.1.FINAL
Reporter: Wolfgang Laun
Assignee: Edson Tirelli
Priority: Critical
Fix For: 5.2.0.M1
Attachments: DroolsTest.java, SampleAlarmRules.drl
A rule such as
rule "average"
when
B( id < 10 )
$list: List() from collect ( A() over window:time(10s) )
Number( $avg: doubleValue ) from accumulate( A( $id : id ) from $list,
average( $id ) )
then
System.out.println( "average = " + $avg );
end
runs into a NPE
Caused by: java.lang.NullPointerException
at org.drools.reteoo.AccumulateNode.getFirstMatch(AccumulateNode.java:967)
at org.drools.reteoo.AccumulateNode.splitList(AccumulateNode.java:920)
at
org.drools.reteoo.AccumulateNode.removePreviousMatchesForLeftTuple(AccumulateNode.java:874)
at org.drools.reteoo.AccumulateNode.retractLeftTuple(AccumulateNode.java:205)
at
org.drools.reteoo.CompositeLeftTupleSinkAdapter.doPropagateRetractLeftTuple(CompositeLeftTupleSinkAdapter.java:238)
at
org.drools.reteoo.CompositeLeftTupleSinkAdapter.propagateRetractLeftTupleDestroyRightTuple(CompositeLeftTupleSinkAdapter.java:138)
at org.drools.reteoo.AccumulateNode.retractLeftTuple(AccumulateNode.java:212)
at org.drools.reteoo.ModifyPreviousTuples.retractTuples(ModifyPreviousTuples.java:111)
at org.drools.reteoo.EntryPointNode.modifyObject(EntryPointNode.java:176)
at org.drools.common.NamedEntryPoint.update(NamedEntryPoint.java:450)
at org.drools.common.NamedEntryPoint.update(NamedEntryPoint.java:361)
at org.drools.base.DefaultKnowledgeHelper.update(DefaultKnowledgeHelper.java:183)
at org.drools.base.DefaultKnowledgeHelper.update(DefaultKnowledgeHelper.java:196)
at event.Rule_launch_0.defaultConsequence(Rule_launch_0.java:7)
at
event.Rule_launch_0DefaultConsequenceInvoker.evaluate(Rule_launch_0DefaultConsequenceInvoker.java:33)
at org.drools.common.DefaultAgenda.fireActivation(DefaultAgenda.java:913)
A null Parameter accctx is passed down from retractLeftTuple.
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1:07 p.m.
New subject: [JBoss JIRA] Updated: (JBRULES-2887) AccumulateNode runs into NPE
[
https://issues.jboss.org/browse/JBRULES-2887?page=com.atlassian.jira.plug...
]
Alessandro Lazarotti updated JBRULES-2887:
------------------------------------------
Attachment: JB2887.zip
AccumulateNode runs into NPE
----------------------------
Key: JBRULES-2887
URL: https://issues.jboss.org/browse/JBRULES-2887
Project: Drools
Issue Type: Bug
Security Level: Public(Everyone can see)
Components: drools-core
Affects Versions: 5.1.1.FINAL
Reporter: Wolfgang Laun
Assignee: Edson Tirelli
Priority: Critical
Fix For: 5.2.0.M1
Attachments: DroolsTest.java, JB2887.zip, SampleAlarmRules.drl
A rule such as
rule "average"
when
B( id < 10 )
$list: List() from collect ( A() over window:time(10s) )
Number( $avg: doubleValue ) from accumulate( A( $id : id ) from $list,
average( $id ) )
then
System.out.println( "average = " + $avg );
end
runs into a NPE
Caused by: java.lang.NullPointerException
at org.drools.reteoo.AccumulateNode.getFirstMatch(AccumulateNode.java:967)
at org.drools.reteoo.AccumulateNode.splitList(AccumulateNode.java:920)
at
org.drools.reteoo.AccumulateNode.removePreviousMatchesForLeftTuple(AccumulateNode.java:874)
at org.drools.reteoo.AccumulateNode.retractLeftTuple(AccumulateNode.java:205)
at
org.drools.reteoo.CompositeLeftTupleSinkAdapter.doPropagateRetractLeftTuple(CompositeLeftTupleSinkAdapter.java:238)
at
org.drools.reteoo.CompositeLeftTupleSinkAdapter.propagateRetractLeftTupleDestroyRightTuple(CompositeLeftTupleSinkAdapter.java:138)
at org.drools.reteoo.AccumulateNode.retractLeftTuple(AccumulateNode.java:212)
at org.drools.reteoo.ModifyPreviousTuples.retractTuples(ModifyPreviousTuples.java:111)
at org.drools.reteoo.EntryPointNode.modifyObject(EntryPointNode.java:176)
at org.drools.common.NamedEntryPoint.update(NamedEntryPoint.java:450)
at org.drools.common.NamedEntryPoint.update(NamedEntryPoint.java:361)
at org.drools.base.DefaultKnowledgeHelper.update(DefaultKnowledgeHelper.java:183)
at org.drools.base.DefaultKnowledgeHelper.update(DefaultKnowledgeHelper.java:196)
at event.Rule_launch_0.defaultConsequence(Rule_launch_0.java:7)
at
event.Rule_launch_0DefaultConsequenceInvoker.evaluate(Rule_launch_0DefaultConsequenceInvoker.java:33)
at org.drools.common.DefaultAgenda.fireActivation(DefaultAgenda.java:913)
A null Parameter accctx is passed down from retractLeftTuple.
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1:09 p.m.
New subject: [JBoss JIRA] Commented: (JBRULES-2887) AccumulateNode runs into NPE
[
https://issues.jboss.org/browse/JBRULES-2887?page=com.atlassian.jira.plug...
]
Alessandro Lazarotti commented on JBRULES-2887:
-----------------------------------------------
I requested to reopen this case because this issue still happens.
Attached to this Jira is a new test project (JB2887.zip) with a simplified pattern that
demonstrates the problem.
It was tested with Drools 5.1.1 Final, SVN 5.1.x branch(/labs/jbossrules/branches/5.1.x/
), BRMS 5.1, and last Drools 5.2 build (master branch in Apr/12/2011) - It fails in all.
The same pattern runs successfully in Drools 5.0.x or BRMS 5.0.x
AccumulateNode runs into NPE
----------------------------
Key: JBRULES-2887
URL: https://issues.jboss.org/browse/JBRULES-2887
Project: Drools
Issue Type: Bug
Security Level: Public(Everyone can see)
Components: drools-core
Affects Versions: 5.1.1.FINAL
Reporter: Wolfgang Laun
Assignee: Edson Tirelli
Priority: Critical
Fix For: 5.2.0.M1
Attachments: DroolsTest.java, JB2887.zip, SampleAlarmRules.drl
A rule such as
rule "average"
when
B( id < 10 )
$list: List() from collect ( A() over window:time(10s) )
Number( $avg: doubleValue ) from accumulate( A( $id : id ) from $list,
average( $id ) )
then
System.out.println( "average = " + $avg );
end
runs into a NPE
Caused by: java.lang.NullPointerException
at org.drools.reteoo.AccumulateNode.getFirstMatch(AccumulateNode.java:967)
at org.drools.reteoo.AccumulateNode.splitList(AccumulateNode.java:920)
at
org.drools.reteoo.AccumulateNode.removePreviousMatchesForLeftTuple(AccumulateNode.java:874)
at org.drools.reteoo.AccumulateNode.retractLeftTuple(AccumulateNode.java:205)
at
org.drools.reteoo.CompositeLeftTupleSinkAdapter.doPropagateRetractLeftTuple(CompositeLeftTupleSinkAdapter.java:238)
at
org.drools.reteoo.CompositeLeftTupleSinkAdapter.propagateRetractLeftTupleDestroyRightTuple(CompositeLeftTupleSinkAdapter.java:138)
at org.drools.reteoo.AccumulateNode.retractLeftTuple(AccumulateNode.java:212)
at org.drools.reteoo.ModifyPreviousTuples.retractTuples(ModifyPreviousTuples.java:111)
at org.drools.reteoo.EntryPointNode.modifyObject(EntryPointNode.java:176)
at org.drools.common.NamedEntryPoint.update(NamedEntryPoint.java:450)
at org.drools.common.NamedEntryPoint.update(NamedEntryPoint.java:361)
at org.drools.base.DefaultKnowledgeHelper.update(DefaultKnowledgeHelper.java:183)
at org.drools.base.DefaultKnowledgeHelper.update(DefaultKnowledgeHelper.java:196)
at event.Rule_launch_0.defaultConsequence(Rule_launch_0.java:7)
at
event.Rule_launch_0DefaultConsequenceInvoker.evaluate(Rule_launch_0DefaultConsequenceInvoker.java:33)
at org.drools.common.DefaultAgenda.fireActivation(DefaultAgenda.java:913)
A null Parameter accctx is passed down from retractLeftTuple.
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1:23 p.m.
New subject: [JBoss JIRA] Commented: (JBRULES-2887) AccumulateNode runs into NPE
[
https://issues.jboss.org/browse/JBRULES-2887?page=com.atlassian.jira.plug...
]
Alessandro Lazarotti commented on JBRULES-2887:
-----------------------------------------------
PS: The other project sample used in this Jira (SampleAlarmRules.drl) works on SVN 5.1.x
branch(/labs/jbossrules/branches/5.1.x/) but fails in the last Drools 5.2 build (master
branch in Apr/12/2011). Now, it is generating the error:
Caused by: org.drools.RuntimeDroolsException: Exception executing predicate size > 3
at org.drools.rule.PredicateConstraint.isAllowed(PredicateConstraint.java:298)
at org.drools.reteoo.AccumulateNode.evaluateResultConstraints(AccumulateNode.java:613)
at org.drools.reteoo.AccumulateNode.assertLeftTuple(AccumulateNode.java:181)
The project JB2887.zip continue generating the same issue reported here:
Caused by: java.lang.NullPointerException
at org.drools.reteoo.AccumulateNode.getFirstMatch(AccumulateNode.java:967)
at org.drools.reteoo.AccumulateNode.splitList(AccumulateNode.java:920)
at
org.drools.reteoo.AccumulateNode.removePreviousMatchesForLeftTuple(AccumulateNode.java:874)
AccumulateNode runs into NPE
----------------------------
Key: JBRULES-2887
URL: https://issues.jboss.org/browse/JBRULES-2887
Project: Drools
Issue Type: Bug
Security Level: Public(Everyone can see)
Components: drools-core
Affects Versions: 5.1.1.FINAL
Reporter: Wolfgang Laun
Assignee: Edson Tirelli
Priority: Critical
Fix For: 5.2.0.M1
Attachments: DroolsTest.java, JB2887.zip, SampleAlarmRules.drl
A rule such as
rule "average"
when
B( id < 10 )
$list: List() from collect ( A() over window:time(10s) )
Number( $avg: doubleValue ) from accumulate( A( $id : id ) from $list,
average( $id ) )
then
System.out.println( "average = " + $avg );
end
runs into a NPE
Caused by: java.lang.NullPointerException
at org.drools.reteoo.AccumulateNode.getFirstMatch(AccumulateNode.java:967)
at org.drools.reteoo.AccumulateNode.splitList(AccumulateNode.java:920)
at
org.drools.reteoo.AccumulateNode.removePreviousMatchesForLeftTuple(AccumulateNode.java:874)
at org.drools.reteoo.AccumulateNode.retractLeftTuple(AccumulateNode.java:205)
at
org.drools.reteoo.CompositeLeftTupleSinkAdapter.doPropagateRetractLeftTuple(CompositeLeftTupleSinkAdapter.java:238)
at
org.drools.reteoo.CompositeLeftTupleSinkAdapter.propagateRetractLeftTupleDestroyRightTuple(CompositeLeftTupleSinkAdapter.java:138)
at org.drools.reteoo.AccumulateNode.retractLeftTuple(AccumulateNode.java:212)
at org.drools.reteoo.ModifyPreviousTuples.retractTuples(ModifyPreviousTuples.java:111)
at org.drools.reteoo.EntryPointNode.modifyObject(EntryPointNode.java:176)
at org.drools.common.NamedEntryPoint.update(NamedEntryPoint.java:450)
at org.drools.common.NamedEntryPoint.update(NamedEntryPoint.java:361)
at org.drools.base.DefaultKnowledgeHelper.update(DefaultKnowledgeHelper.java:183)
at org.drools.base.DefaultKnowledgeHelper.update(DefaultKnowledgeHelper.java:196)
at event.Rule_launch_0.defaultConsequence(Rule_launch_0.java:7)
at
event.Rule_launch_0DefaultConsequenceInvoker.evaluate(Rule_launch_0DefaultConsequenceInvoker.java:33)
at org.drools.common.DefaultAgenda.fireActivation(DefaultAgenda.java:913)
A null Parameter accctx is passed down from retractLeftTuple.
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10:02 a.m.
New subject: [JBoss JIRA] Resolved: (JBRULES-2887) AccumulateNode runs into NPE
[
https://issues.jboss.org/browse/JBRULES-2887?page=com.atlassian.jira.plug...
]
Edson Tirelli resolved JBRULES-2887.
------------------------------------
Resolution: Done
Thanks for re-opening and reporting the additional problem. This was not related to the
original problem described, but was indeed a bug. Fixed on both "master" and
5.1.x branches.
AccumulateNode runs into NPE
----------------------------
Key: JBRULES-2887
URL: https://issues.jboss.org/browse/JBRULES-2887
Project: Drools
Issue Type: Bug
Security Level: Public(Everyone can see)
Components: drools-core
Affects Versions: 5.1.1.FINAL
Reporter: Wolfgang Laun
Assignee: Edson Tirelli
Priority: Critical
Fix For: 5.2.0.M1
Attachments: DroolsTest.java, JB2887.zip, SampleAlarmRules.drl
A rule such as
rule "average"
when
B( id < 10 )
$list: List() from collect ( A() over window:time(10s) )
Number( $avg: doubleValue ) from accumulate( A( $id : id ) from $list,
average( $id ) )
then
System.out.println( "average = " + $avg );
end
runs into a NPE
Caused by: java.lang.NullPointerException
at org.drools.reteoo.AccumulateNode.getFirstMatch(AccumulateNode.java:967)
at org.drools.reteoo.AccumulateNode.splitList(AccumulateNode.java:920)
at
org.drools.reteoo.AccumulateNode.removePreviousMatchesForLeftTuple(AccumulateNode.java:874)
at org.drools.reteoo.AccumulateNode.retractLeftTuple(AccumulateNode.java:205)
at
org.drools.reteoo.CompositeLeftTupleSinkAdapter.doPropagateRetractLeftTuple(CompositeLeftTupleSinkAdapter.java:238)
at
org.drools.reteoo.CompositeLeftTupleSinkAdapter.propagateRetractLeftTupleDestroyRightTuple(CompositeLeftTupleSinkAdapter.java:138)
at org.drools.reteoo.AccumulateNode.retractLeftTuple(AccumulateNode.java:212)
at org.drools.reteoo.ModifyPreviousTuples.retractTuples(ModifyPreviousTuples.java:111)
at org.drools.reteoo.EntryPointNode.modifyObject(EntryPointNode.java:176)
at org.drools.common.NamedEntryPoint.update(NamedEntryPoint.java:450)
at org.drools.common.NamedEntryPoint.update(NamedEntryPoint.java:361)
at org.drools.base.DefaultKnowledgeHelper.update(DefaultKnowledgeHelper.java:183)
at org.drools.base.DefaultKnowledgeHelper.update(DefaultKnowledgeHelper.java:196)
at event.Rule_launch_0.defaultConsequence(Rule_launch_0.java:7)
at
event.Rule_launch_0DefaultConsequenceInvoker.evaluate(Rule_launch_0DefaultConsequenceInvoker.java:33)
at org.drools.common.DefaultAgenda.fireActivation(DefaultAgenda.java:913)
A null Parameter accctx is passed down from retractLeftTuple.
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10:02 a.m.
New subject: [JBoss JIRA] Closed: (JBRULES-2887) AccumulateNode runs into NPE
[
https://issues.jboss.org/browse/JBRULES-2887?page=com.atlassian.jira.plug...
]
Edson Tirelli closed JBRULES-2887.
----------------------------------
AccumulateNode runs into NPE
----------------------------
Key: JBRULES-2887
URL: https://issues.jboss.org/browse/JBRULES-2887
Project: Drools
Issue Type: Bug
Security Level: Public(Everyone can see)
Components: drools-core
Affects Versions: 5.1.1.FINAL
Reporter: Wolfgang Laun
Assignee: Edson Tirelli
Priority: Critical
Fix For: 5.2.0.M1
Attachments: DroolsTest.java, JB2887.zip, SampleAlarmRules.drl
A rule such as
rule "average"
when
B( id < 10 )
$list: List() from collect ( A() over window:time(10s) )
Number( $avg: doubleValue ) from accumulate( A( $id : id ) from $list,
average( $id ) )
then
System.out.println( "average = " + $avg );
end
runs into a NPE
Caused by: java.lang.NullPointerException
at org.drools.reteoo.AccumulateNode.getFirstMatch(AccumulateNode.java:967)
at org.drools.reteoo.AccumulateNode.splitList(AccumulateNode.java:920)
at
org.drools.reteoo.AccumulateNode.removePreviousMatchesForLeftTuple(AccumulateNode.java:874)
at org.drools.reteoo.AccumulateNode.retractLeftTuple(AccumulateNode.java:205)
at
org.drools.reteoo.CompositeLeftTupleSinkAdapter.doPropagateRetractLeftTuple(CompositeLeftTupleSinkAdapter.java:238)
at
org.drools.reteoo.CompositeLeftTupleSinkAdapter.propagateRetractLeftTupleDestroyRightTuple(CompositeLeftTupleSinkAdapter.java:138)
at org.drools.reteoo.AccumulateNode.retractLeftTuple(AccumulateNode.java:212)
at org.drools.reteoo.ModifyPreviousTuples.retractTuples(ModifyPreviousTuples.java:111)
at org.drools.reteoo.EntryPointNode.modifyObject(EntryPointNode.java:176)
at org.drools.common.NamedEntryPoint.update(NamedEntryPoint.java:450)
at org.drools.common.NamedEntryPoint.update(NamedEntryPoint.java:361)
at org.drools.base.DefaultKnowledgeHelper.update(DefaultKnowledgeHelper.java:183)
at org.drools.base.DefaultKnowledgeHelper.update(DefaultKnowledgeHelper.java:196)
at event.Rule_launch_0.defaultConsequence(Rule_launch_0.java:7)
at
event.Rule_launch_0DefaultConsequenceInvoker.evaluate(Rule_launch_0DefaultConsequenceInvoker.java:33)
at org.drools.common.DefaultAgenda.fireActivation(DefaultAgenda.java:913)
A null Parameter accctx is passed down from retractLeftTuple.
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4923
days inactive
4989
days old
12 comments
4 participants
participants (4)
-
Alessandro Lazarotti (JIRA) -
Edson Tirelli (JIRA)
-
Tihomir Surdilovic (JIRA)
-
Wolfgang Laun (JIRA)