gitgabrio commented on issue #1831:
URL:
https://github.com/apache/incubator-kie-issues/issues/1831#issuecomment-2663229143
@baldimir @yesamer
About **_invoke_005_**
This is the invoked `businessKnowledgeModel`:
```xml
<businessKnowledgeModel name="bkm_005" id="_bkm_005">
<variable name="bkm_005"/>
<encapsulatedLogic>
<formalParameter name="arg"/>
<literalExpression typeRef="number">
<text>[arg]</text>
</literalExpression>
</encapsulatedLogic>
</businessKnowledgeModel>
```
So:
1. it receives any possible argument as variable `arg` (`formalParameter`
without any specific type)
2. it change it to array (`literalExpression.text`)
3. it triies coerce to number (`literalExpression.typeRef`)
if invoked with `10`
10 -> [10] -> 10
This is the tested decision
```xml
<decision name="invoke_005" id="_invoke_005">
<variable name="invoke_005" typeRef="number"/>
<knowledgeRequirement>
<requiredKnowledge href="#_bkm_005"/>
</knowledgeRequirement>
<invocation typeRef="number"> <!-- bkm returns number array but
invocation type is a number -->
<literalExpression>
<text>bkm_005</text>
</literalExpression>
<binding>
<parameter name="arg"/>
<literalExpression>
<text>[10]</text>
</literalExpression>
</binding>
</invocation>
</decision>
```
1. the binding part creates an `arg` parameter that is it an `array`
2. but since the `invocation.TypeRef` is `number`, that single element array
is coerced to number
3. so, the number is sent as arg parameter to bkm_005
[10] -> 10 -> bkm_005(10)
The original
[comment](https://github.com/dmn-tck/tck/pull/238#issuecomment-497744315) from
Matteo also mention that, but I have the impression something changed in the
meantime.
See **_Result of invoke_005 is wrong._**
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