[rules-users] Drools 5.4 Jitting Error

[gboro54]

I just updated to Drools 5.4 and I am not getting the following error on all
my map accessors:


10:41:12,997 ERROR [stderr] (Thread-169) Exception in thread "Thread-169"
java.lang.RuntimeException: Exception jitting: feeKeys[1] == null

10:41:12,998 ERROR [stderr] (Thread-169)at
org.drools.rule.constraint.MvelConstraint.executeJitting(MvelConstraint.java:219)

10:41:12,999 ERROR [stderr] (Thread-169)at
org.drools.rule.constraint.MvelConstraint.access$000(MvelConstraint.java:41)

10:41:13,000 ERROR [stderr] (Thread-169)at
org.drools.rule.constraint.MvelConstraint$1.run(MvelConstraint.java:201)

10:41:13,000 ERROR [stderr] (Thread-169)at
java.util.concurrent.ThreadPoolExecutor$Worker.runTask(ThreadPoolExecutor.java:886)

10:41:13,001 ERROR [stderr] (Thread-169)at
java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:908)

10:41:13,002 ERROR [stderr] (Thread-169)at
java.lang.Thread.run(Thread.java:662)

10:41:13,002 ERROR [stderr] (Thread-169) Caused by: java.lang.VerifyError:
(class: ConditionEvaluator51817e9f4a7542c5b295be7d674f854c, method: evaluate
signature:
(Ljava/lang/Object;Lorg/drools/common/InternalWorkingMemory;Lorg/drools/reteoo/LeftTuple;)Z)
Expecting to find object/array on stack

10:41:13,004 ERROR [stderr] (Thread-169)at
java.lang.Class.getDeclaredConstructors0(Native Method)

10:41:13,004 ERROR [stderr] (Thread-169)at
java.lang.Class.privateGetDeclaredConstructors(Class.java:2389)

10:41:13,005 ERROR [stderr] (Thread-169)at
java.lang.Class.getConstructor0(Class.java:2699)

10:41:13,005 ERROR [stderr] (Thread-169)at
java.lang.Class.getConstructor(Class.java:1657)

10:41:13,006 ERROR [stderr] (Thread-169)at
org.drools.rule.builder.dialect.asm.ClassGenerator.newInstance(ClassGenerator.java:173)

10:41:13,006 ERROR [stderr] (Thread-169)at
org.drools.rule.constraint.ASMConditionEvaluatorJitter.jitEvaluator(ASMConditionEvaluatorJitter.java:53)

10:41:13,007 ERROR [stderr] (Thread-169)at
org.drools.rule.constraint.MvelConstraint.executeJitting(MvelConstraint.java:217)

10:41:13,008 ERROR [stderr] (Thread-169)... 5 more



Could anyone indicate how to fix this?

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Re: [rules-users] Drools 5.4 Jitting Error

[gboro54]

rule "Rule1 trade"
no-loop true
when

$tsc:TradeSideContext(trade!=null,primarySide!=null,contraSide!=null)
$trade:Trade($tradeDate:tradeDate, tradeSource == "O") from 
$tsc.trade
$ps:TradeSide(capacity.capacityCode == CapacityCode.CUSTOMER) 
from
$tsc.primarySide
$cs:TradeSide(capacity.capacityCode == CapacityCode.CUSTOMER) 
from
$tsc.contraSide
$ft:FeeType(feeKeys[0] == DefaultFeeTypeComponent.RULE_1_SCH, 
feeKeys[1]
== null) from $tsc.baseFee

then

$ft.appendKeyValue(DefaultFeeTypeComponent.RULE_1_ELG);
events.select(new
GenericBillingEvent(BillingEventType.BASE_FEE_EVENT)).fire($tsc);retract($tsc);
end

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Re: [rules-users] Drools 5.4 Jitting Error

[gboro54]

It looks like the rule executes(based on my unit test the proper element is
placed in the list) and it always seems to happen on the my last execution.
In addition I have noticed that the evaluations seem to be handled on other
threads. Is this correct behavior? 



gboro54 wrote
> 
> rule "Rule1 trade"
>   no-loop true
>   when
>   
> $tsc:TradeSideContext(trade!=null,primarySide!=null,contraSide!=null)
>   $trade:Trade($tradeDate:tradeDate, tradeSource == "O") from 
> $tsc.trade
>   $ps:TradeSide(capacity.capacityCode == CapacityCode.CUSTOMER) 
> from
> $tsc.primarySide
>   $cs:TradeSide(capacity.capacityCode == CapacityCode.CUSTOMER) 
> from
> $tsc.contraSide
>   $ft:FeeType(feeKeys[0] == DefaultFeeTypeComponent.RULE_1_SCH, 
> feeKeys[1]
> == null) from $tsc.baseFee
> 
>   then
> 
>   $ft.appendKeyValue(DefaultFeeTypeComponent.RULE_1_ELG);
>   events.select(new
> GenericBillingEvent(BillingEventType.BASE_FEE_EVENT)).fire($tsc);retract($tsc);
> end
> 


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Re: [rules-users] Drools 5.4 Jitting Error

[Mario Fusco]

In Drools 5.4 we added an optimization that JITs constraints (i.e. compile
them in bytecode) after they have been evaluated for a given amount of times
(currently 20). Moreover it is not true that constraints' evaluations is
made in threads different from the main one. Instead it is that jitting
process mentioned above that is performed in a different threads, so until
the optimized version of the constraint isn't ready, the main thread isn't
blocked but can continue to use the non-jitted one. The error you are
experiencing is generated during the optimization process and that is why
you see it happens in different thread. 

I will try to reproduce the issue you found just now.
Thank you for reporting this.

Mario

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Re: [rules-users] Drools 5.4 Jitting Error

[gboro54]

Mario,

  That is what i expected(just wanted to verify). Let me know if any
additional information is needed...


Mario Fusco wrote
> 
> In Drools 5.4 we added an optimization that JITs constraints (i.e. compile
> them in bytecode) after they have been evaluated for a given amount of
> times (currently 20). Moreover it is not true that constraints'
> evaluations is made in threads different from the main one. Instead it is
> that jitting process mentioned above that is performed in a different
> threads, so until the optimized version of the constraint isn't ready, the
> main thread isn't blocked but can continue to use the non-jitted one. The
> error you are experiencing is generated during the optimization process
> and that is why you see it happens in different thread. 
> 
> I will try to reproduce the issue you found just now.
> Thank you for reporting this.
> 
> Mario
> 


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Re: [rules-users] Drools 5.4 Jitting Error

[Mario Fusco]

Ok, I've been able to reproduce your issue. I'll fix it asap and keep you
updated on how I am progressing.
The only (ugly) workaround I could find at the moment is to replace
feeKeys[1] with feeKeys[new Integer(1)]. 
Let me know if it works for you.

Mario




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Re: [rules-users] Drools 5.4 Jitting Error

[gboro54]

Thanks Mario! That seems to have resolved the issue. I look forward to your
fix. 


Mario Fusco wrote
> 
> Ok, I've been able to reproduce your issue. I'll fix it asap and keep you
> updated on how I am progressing.
> The only (ugly) workaround I could find at the moment is to replace
> feeKeys[1] with feeKeys[new Integer(1)]. 
> Let me know if it works for you.
> 
> Mario
> 


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Re: [rules-users] Drools 5.4 Jitting Error

[Mario Fusco]

I have reported this issue here: https://issues.jboss.org/browse/JBRULES-3511
I have also already fixed it and pushed the fix on the master branch.

Working on the fix I also found another workaround: even replacing
feeKeys[1] with feeKeys[1+0] should work. I don't know if this is better or
worse than the former one I suggested, since it is a bit more concise but
probably also less readable.

Thanks again for reporting this,
Mario

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Re: [rules-users] Drools 5.4 Jitting Error

[Caillard, Quentin]

Sorry, it is a quite old thread. But i am experiencing some jitting error
with the 5.4.0.Final. If I well understand, the jitting error doesn't stop
or modify the execution of my rules. Am I right? Can i use this version
anyway?

Thanks for your response.

Regards

2012/5/17 Mario Fusco 

> I have reported this issue here:
> https://issues.jboss.org/browse/JBRULES-3511
> I have also already fixed it and pushed the fix on the master branch.
>
> Working on the fix I also found another workaround: even replacing
> feeKeys[1] with feeKeys[1+0] should work. I don't know if this is better or
> worse than the former one I suggested, since it is a bit more concise but
> probably also less readable.
>
> Thanks again for reporting this,
> Mario
>
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Re: [rules-users] Drools 5.4 Jitting Error

[gboro54]

You are correct from what I have seen...

On Thu, Sep 6, 2012 at 4:41 AM, Caillard, Quentin [via Drools] <
ml-node+s46999n4019621...@n3.nabble.com> wrote:

> Sorry, it is a quite old thread. But i am experiencing some jitting error
> with the 5.4.0.Final. If I well understand, the jitting error doesn't stop
> or modify the execution of my rules. Am I right? Can i use this version
> anyway?
>
> Thanks for your response.
>
> Regards
>
> 2012/5/17 Mario Fusco <[hidden 
> email]
> >
>
>> I have reported this issue here:
>> https://issues.jboss.org/browse/JBRULES-3511
>> I have also already fixed it and pushed the fix on the master branch.
>>
>> Working on the fix I also found another workaround: even replacing
>> feeKeys[1] with feeKeys[1+0] should work. I don't know if this is better
>> or
>> worse than the former one I suggested, since it is a bit more concise but
>> probably also less readable.
>>
>> Thanks again for reporting this,
>> Mario
>>
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>
>
>
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>
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Re: [rules-users] Drools 5.4 Jitting Error

[jgeuns]

FYI, I came across a similar problem calling a method declared on a Java
helper class, when the method takes a Number and the value passed in is
declared as long or int. Problem does not occur when value is declared as
double.

Simplified version of my example:
class JavaHelper {
public boolean helperMethod(Number value) {
return true;
}
}



declare BusinessObject
LongAttribute : long
DoubleAttribute : double
end



rule "TestRule"
when
$helper: JavaHelper ()
$object: BusinessObject ( 
$helper.helperMethod(LongAttribute)
) 
then
// 
end

This gives the exception shown below. Exception goes away when replacing
LongAttribute with DoubleAttribute. 

One workaround is to create multiple versions of helperMethod:
public boolean helperMethod(long value) {..}
public boolean helperMethod(double value) {..}

=
Exception in thread "Thread-5" java.lang.RuntimeException: Exception
jitting: $helper.helperMethod(LongAttribute)
at
org.drools.rule.constraint.MvelConstraint.executeJitting(MvelConstraint.java:219)
at
org.drools.rule.constraint.MvelConstraint.access$000(MvelConstraint.java:41)
at 
org.drools.rule.constraint.MvelConstraint$1.run(MvelConstraint.java:201)
at
java.util.concurrent.ThreadPoolExecutor$Worker.runTask(ThreadPoolExecutor.java:886)
at
java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:908)
at java.lang.Thread.run(Thread.java:680)
Caused by: java.lang.VerifyError: (class:
ConditionEvaluatorc78edf31751242d095abbdec5e344aa4, method: evaluate
signature:
(Ljava/lang/Object;Lorg/drools/common/InternalWorkingMemory;Lorg/drools/reteoo/LeftTuple;)Z)
Expecting to find long on stack
at java.lang.Class.getDeclaredConstructors0(Native Method)
at java.lang.Class.privateGetDeclaredConstructors(Class.java:2389)
at java.lang.Class.getConstructor0(Class.java:2699)
at java.lang.Class.getConstructor(Class.java:1657)
at
org.drools.rule.builder.dialect.asm.ClassGenerator.newInstance(ClassGenerator.java:173)
at
org.drools.rule.constraint.ASMConditionEvaluatorJitter.jitEvaluator(ASMConditionEvaluatorJitter.java:53)
at
org.drools.rule.constraint.MvelConstraint.executeJitting(MvelConstraint.java:217)
... 5 more





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Re: [rules-users] Drools 5.4 Jitting Error

[kc7bfi]

Has this error been fixed and, if so, in what version of DRools? David



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Re: [rules-users] Drools 5.4 Jitting Error

[Caillard, Quentin]

I haven't explained what was my problem, but indeed it has been solved with
5.5. Thanks :)

On Fri, Dec 21, 2012 at 5:40 PM, kc7bfi
wrote:

> Has this error been fixed and, if so, in what version of DRools? David
>
>
>
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-- 
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Phone : +33 (0)2 30 960 874
Fax : +33 (0)2 30 960 423

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