[rules-users] Drools : 2 identical calls to the same knowledgeBase don't give the same result… why?

[Davide Sottara]

It is a bug, I'd say related to constraint jitting..
It seems to work with 5.6.0.Final, could you please try that version?
Thanks
Davide

On 02/10/2014 06:06 PM, antoine wrote:
> Hello,
>
> I've faced some weird result using Drools 5.5.0.Final, and I would like to
> know if I am doing something wrong ?
>
> I am using drools to process some user rules (the Excel way). If I call the
> rules with the exact same data at different time in the process, I don't get
> the same result. (I am using a StateLessSession)
>
> After digging a bit more, I managed to extract a very simple maven-based
> unit-test to reproduce the problem. (the archive can be downloaded here : 
> http://www.filedropper.com/using-drools
> <http://www.filedropper.com/using-drools>   )
>
> In fact, I call many times to execute the same rule, and after the 23rd
> times I don't get the same expected result :
> @RunWith(SpringJUnit4ClassRunner.class)
> @ContextConfiguration({ "classpath:status-rules-config.xml" })
> public class StatusRuleTest {
>     @Autowired StatusRule ruleRunner;
>
>     @Test public void do_not_work_at_25th_call() throws Exception {
>         for(int i = 0 ; i < 35 ; i++){
>             MyFact fact = new MyFact();
>             assertThat(fact.getStatus()).isEqualTo("NONE");
>
>             ruleRunner.defineStatus(fact);
>
>             assertThat(fact.getStatus()).isEqualTo("DONE");
>         }
>     }
> }
>
> with rule definition as :
> public class StatusRuleImpl implements StatusRule {
>
>     @Setter private StatelessKnowledgeSession ksessionStatus;
>
>     @Override
>     public void defineStatus(MyFact myFact) {
>         ksessionStatus.addEventListener(new DebugAgendaEventListener() );
>         ksessionStatus.addEventListener(new
> DebugWorkingMemoryEventListener());
>         ksessionStatus.execute(myFact);
>     }
> }
>
> It uses a statelessSession, with sequential mode and ACTIVATION-GROUP
> column.
> I also posted more details and more logs here : 
> http://stackoverflow.com/questions/21585666/drools-2-identical-calls-to-the-same-knowledgebase-dont-give-the-same-result
> <http://stackoverflow.com/questions/21585666/drools-2-identical-calls-to-the-same-knowledgebase-dont-give-the-same-result>  
>
> >From what I checked, it might be coming from the negative BigDecimal (If I
> change it to 10 in both of the code and the Excel, it seems to work)
>
> If someone has an Idea, I will be pleased to read it !
> Thanks in advance,
>
> Antoine
>
>
>
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