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<div class="moz-cite-prefix">This is unlikely to be the same
exception that started the initial thread, but a problem
nevertheless.. :(<br>
could you create a self-contained test case and submit it?<br>
Thanks<br>
Davide<br>
<br>
On 01/13/2014 08:05 AM, Mark Proctor wrote:<br>
</div>
<blockquote
cite="mid:22E63BB3-B4C1-4339-9E5D-3D11ADC656B1@codehaus.org"
type="cite">
<meta http-equiv="Content-Type" content="text/html;
charset=ISO-8859-1">
<div>That was recreated on 5.6.0.CR1 ? The 5.6 ship has sailed now
:( and currently there are no plans for 5.7 any time soon. We
should focus on making sure this is fixed in 6.x.</div>
<div><br>
</div>
<div>Mark</div>
<div>
<div>On 12 Jan 2014, at 19:21, nxv <<a moz-do-not-send="true"
href="mailto:nxvanderlinden@gmail.com">nxvanderlinden@gmail.com</a>>
wrote:</div>
<br class="Apple-interchange-newline">
<blockquote type="cite">
<div style="font-size: 12px; font-style: normal; font-variant:
normal; font-weight: normal; letter-spacing: normal;
line-height: normal; orphans: auto; text-align: start;
text-indent: 0px; text-transform: none; white-space: normal;
widows: auto; word-spacing: 0px; -webkit-text-stroke-width:
0px;">Hello,<br>
<br>
I'm able to reproduce this issue with a KB containing only 1
rule.<br>
<br>
rule "Qualification##ToControl"<br>
<span class="Apple-tab-span" style="white-space: pre;"> </span>salience
50<br>
when<br>
<span class="Apple-tab-span" style="white-space: pre;"> </span><span
class="Apple-tab-span" style="white-space: pre;"> </span>$p:
AccessRegisterSnapshot(<br>
<span class="Apple-tab-span" style="white-space: pre;"> </span><span
class="Apple-tab-span" style="white-space: pre;"> </span><span
class="Apple-tab-span" style="white-space: pre;"> </span><span
class="Apple-tab-span" style="white-space: pre;"> </span>$effDt:
effectivedate )<br>
<span class="Apple-tab-span" style="white-space: pre;"> </span><span
class="Apple-tab-span" style="white-space: pre;"> </span>$dpo:
DeliveryPoint()<br>
<span class="Apple-tab-span" style="white-space: pre;"> </span><span
class="Apple-tab-span" style="white-space: pre;"> </span>$gCfg:
GeneralConfig(<br>
<span class="Apple-tab-span" style="white-space: pre;"> </span><span
class="Apple-tab-span" style="white-space: pre;"> </span><span
class="Apple-tab-span" style="white-space: pre;"> </span><span
class="Apple-tab-span" style="white-space: pre;"> </span>(
todate == null ||<span class="Apple-converted-space"> </span><br>
<span class="Apple-tab-span" style="white-space: pre;"> </span><span
class="Apple-tab-span" style="white-space: pre;"> </span><span
class="Apple-tab-span" style="white-space: pre;"> </span><span
class="Apple-tab-span" style="white-space: pre;"> </span><span
class="Apple-converted-space"> </span> ( todate after[ 0d
] $effDt &&<br>
<span class="Apple-tab-span" style="white-space: pre;"> </span><span
class="Apple-tab-span" style="white-space: pre;"> </span><span
class="Apple-tab-span" style="white-space: pre;"> </span><span
class="Apple-tab-span" style="white-space: pre;"> </span><span
class="Apple-converted-space"> </span> todate after[ 1ms
] fromdate ) ) )<br>
<span class="Apple-tab-span" style="white-space: pre;"> </span><span
class="Apple-tab-span" style="white-space: pre;"> </span><span
class="Apple-tab-span" style="white-space: pre;"> </span><span
class="Apple-tab-span" style="white-space: pre;"> </span>from
$dpo.generalConfigs<br>
then<br>
<span class="Apple-tab-span" style="white-space: pre;"> </span><br>
end<br>
<br>
This rule worked under drools 5.5.0.Final. <br>
<br>
Caused by: java.lang.NullPointerException at<br>
org.drools.base.evaluators.AfterEvaluatorDefinition$AfterEvaluator.evaluate(AfterEvaluatorDefinition.java:347)<br>
<span class="Apple-tab-span" style="white-space: pre;"> </span>at
org.drools.base.EvaluatorWrapper.evaluate(EvaluatorWrapper.java:99)<br>
<br>
<br>
<br>
<br>
Davide Sottara wrote<br>
<blockquote type="cite">I tried to reproduce the problem,
with no success.<br>
Could you please create a self-contained unit test?<br>
If confirmed, I'll fix the problem as soon as possible<br>
Thanks<br>
Davide<br>
<br>
On 11/14/2013 04:48 AM, abr wrote:<br>
<blockquote type="cite">Hi everyone,<br>
<br>
I tried to switch from 5.5.0.Final to 5.6.0.CR1 and got
a null pointer<br>
exception in the evaluation of the after evaluator.<br>
(Exact method is:<br>
/org.drools.base.evaluators.AfterEvaluatorDefinition.AfterEvaluator.evaluate(InternalWorkingMemory,<br>
InternalReadAccessor, InternalFactHandle,
InternalReadAccessor,<br>
InternalFactHandle)/ )<br>
<br>
When debugging, the exception occurs at the very first
line of the<br>
method,<br>
in:<br>
/ if ( extractor1.isNullValue( workingMemory,
handle1.getObject() ) ||<span
class="Apple-converted-space"> </span><br>
extractor2.isNullValue( workingMemory,
handle2.getObject() )<br>
) {<br>
return false;<br>
}<br>
/<br>
The cause of the exception is that handle1 is null.<br>
<br>
The rule where the exception occurs looks like:<br>
/ MyFact(<br>
fromdate before[ 0d ] $min,<br>
( todate == null || todate after[ 0d ] $max ) )<br>
/<br>
<br>
When the exception occurs, /MyFact.fromdate/ is not
null, /$min/ is not<br>
null, /MyFact.todate/ is null, /$max/ is not null.<br>
In AfterEvaluator.evaluate : /extractor1/ refers to
/MyFact.todate/,<br>
/extractor2/ refers to /$max/, /handle1/ is null,
/handle2/ refers to the<br>
fact including the attribute to which /$max/ variable is
bound to.<br>
<br>
Of course, this worked fine in 5.5.0.Final.<br>
I couldn't test this out in Drools 6.0.0.CR5 because I
have dependencies<br>
to<br>
drools-spring JAR that does not exist anymore in
6.0.0.CR5.<br>
<br>
Is it simple to fix this problem?<br>
<br>
Thanks in advance.<br>
<br>
Best,<br>
Alexis<br>
<br>
<br>
<br>
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