<br><br> This looks like an MVEL issue, since your expression is being converted into an MVEL predicate. May I ask you please to open a JIRA for that bug?<br><br> Meanwhile, a workaround that shall work for you and may give you improved perf is to split your pattern into 2 patterns using the from keyword:
<br><br><p style=""><font color="black" face="Courier New" size="2"><span style="font-size: 10pt; color: black;"><br></span></font></p><p style=""><font color="black" face="Courier New" size="2"><span style="font-size: 10pt; color: black;">
when</span></font></p><p style=""><font color="black" face="Courier New" size="2"><span style="font-size: 10pt; color: black;"> $dto : DTO(</span></font><font color="black" face="Courier New" size="2"><span style="font-size: 10pt; color: black;">
)</span></font></p><p style=""><font color="black" face="Courier New" size="2"><span style="font-size: 10pt; color: black;"> W250_4_1( </span></font><font color="black" face="Courier New" size="2"><span style="font-size: 10pt; color: black;">
value
</span></font><b><font color="#960000" face="Courier New" size="2"><span style="font-size: 10pt; color: rgb(150, 0, 0); font-weight: bold;">in</span></font></b><font color="black" face="Courier New" size="2"><span style="font-size: 10pt; color: black;">
(</span></font><font color="green" face="Courier New" size="2"><span style="font-size: 10pt; color: green;">"0"</span></font><font color="black" face="Courier New" size="2"><span style="font-size: 10pt; color: black;">
,</span></font><font color="green" face="Courier New" size="2"><span style="font-size: 10pt; color: green;">"1"</span></font><font color="black" face="Courier New" size="2"><span style="font-size: 10pt; color: black;">
,</span></font><font color="green" face="Courier New" size="2"><span style="font-size: 10pt; color: green;">"6"</span></font><font color="black" face="Courier New" size="2"><span style="font-size: 10pt; color: black;">
,</span></font><font color="green" face="Courier New" size="2"><span style="font-size: 10pt; color: green;">"7"</span></font><font color="black" face="Courier New" size="2"><span style="font-size: 10pt; color: black;">
,</span></font><font color="green" face="Courier New" size="2"><span style="font-size: 10pt; color: green;">"A"</span></font><font color="black" face="Courier New" size="2"><span style="font-size: 10pt; color: black;">
,</span></font><font color="green" face="Courier New" size="2"><span style="font-size: 10pt; color: green;">"C"</span></font><font color="black" face="Courier New" size="2"><span style="font-size: 10pt; color: black;">
,</span></font><font color="green" face="Courier New" size="2"><span style="font-size: 10pt; color: green;">"D"</span></font><font color="black" face="Courier New" size="2"><span style="font-size: 10pt; color: black;">
,</span></font><font color="green" face="Courier New" size="2"><span style="font-size: 10pt; color: green;">"G"</span></font><font color="black" face="Courier New" size="2"><span style="font-size: 10pt; color: black;">
,</span></font><font color="green" face="Courier New" size="2"><span style="font-size: 10pt; color: green;">"L"</span></font><font color="black" face="Courier New" size="2"><span style="font-size: 10pt; color: black;">
,</span></font><font color="green" face="Courier New" size="2"><span style="font-size: 10pt; color: green;">"M"</span></font><font color="black" face="Courier New" size="2"><span style="font-size: 10pt; color: black;">
,</span></font><font color="green" face="Courier New" size="2"><span style="font-size: 10pt; color: green;">"P"</span></font><font color="black" face="Courier New" size="2"><span style="font-size: 10pt; color: black;">
,</span></font><font color="green" face="Courier New" size="2"><span style="font-size: 10pt; color: green;">"Q"</span></font><font color="black" face="Courier New" size="2"><span style="font-size: 10pt; color: black;">
,</span></font><font color="green" face="Courier New" size="2"><span style="font-size: 10pt; color: green;">"S"</span></font><font color="black" face="Courier New" size="2"><span style="font-size: 10pt; color: black;">
,</span></font><font color="green" face="Courier New" size="2"><span style="font-size: 10pt; color: green;">"V"</span></font><font color="black" face="Courier New" size="2"><span style="font-size: 10pt; color: black;">
,</span></font><font color="green" face="Courier New" size="2"><span style="font-size: 10pt; color: green;">"Z"</span></font><font color="black" face="Courier New" size="2"><span style="font-size: 10pt; color: black;">
) ) from $dto.w250_4_1<br></span></font></p><p style="">then<br><font color="black" face="Courier New" size="2"><span style="font-size: 10pt; color: black;"></span></font><font face="Courier New" size="2"><span style="font-size: 10pt;">
</span></font></p>
<font color="black" face="Courier New" size="2"><span style="font-size: 10pt; color: black;"></span></font><br> Thanks, and hope it helps.<br><br> Edson<br><br><br><div><span class="gmail_quote">2007/8/13, Arsalan S. Zaidi <
<a href="mailto:arsalan.zaidi@capgemini.com">arsalan.zaidi@capgemini.com</a>>:</span><blockquote class="gmail_quote" style="border-left: 1px solid rgb(204, 204, 204); margin: 0pt 0pt 0pt 0.8ex; padding-left: 1ex;">
<div link="blue" vlink="purple" lang="EN-US">
<div>
<p><font face="Arial" size="2"><span style="font-size: 10pt; font-family: Arial;">Hi.</span></font></p>
<p><font face="Arial" size="2"><span style="font-size: 10pt; font-family: Arial;"> </span></font></p>
<p><font face="Arial" size="2"><span style="font-size: 10pt; font-family: Arial;">I've currently evaluating Drools 4.0 for a project of
ours and I'm running into some problems.</span></font></p>
<p><font face="Arial" size="2"><span style="font-size: 10pt; font-family: Arial;"> </span></font></p>
<p><font face="Arial" size="2"><span style="font-size: 10pt; font-family: Arial;">I have a rule which looks like this:</span></font></p>
<p><font face="Arial" size="2"><span style="font-size: 10pt; font-family: Arial;"> </span></font></p>
<p style=""><b><font color="#960000" face="Courier New" size="2"><span style="font-size: 10pt; color: rgb(150, 0, 0); font-weight: bold;">rule</span></font></b><font color="black" face="Courier New" size="2"><span style="font-size: 10pt; color: black;">
</span></font><font color="green" face="Courier New" size="2"><span style="font-size: 10pt; color: green;">"W250.42
Editable"</span></font><font face="Courier New" size="2"><span style="font-size: 10pt;"></span></font></p>
<p style=""><font color="black" face="Courier New" size="2"><span style="font-size: 10pt; color: black;"> </span></font><b><font color="#960000" face="Courier New" size="2"><span style="font-size: 10pt; color: rgb(150, 0, 0); font-weight: bold;">
when</span></font></b><font face="Courier New" size="2"><span style="font-size: 10pt;"></span></font></p>
<p style=""><font color="black" face="Courier New" size="2"><span style="font-size: 10pt; color: black;"> DTO(w250_4_1.value
</span></font><b><font color="#960000" face="Courier New" size="2"><span style="font-size: 10pt; color: rgb(150, 0, 0); font-weight: bold;">in</span></font></b><font color="black" face="Courier New" size="2"><span style="font-size: 10pt; color: black;">
(</span></font><font color="green" face="Courier New" size="2"><span style="font-size: 10pt; color: green;">"0"</span></font><font color="black" face="Courier New" size="2"><span style="font-size: 10pt; color: black;">
,</span></font><font color="green" face="Courier New" size="2"><span style="font-size: 10pt; color: green;">"1"</span></font><font color="black" face="Courier New" size="2"><span style="font-size: 10pt; color: black;">
,</span></font><font color="green" face="Courier New" size="2"><span style="font-size: 10pt; color: green;">"6"</span></font><font color="black" face="Courier New" size="2"><span style="font-size: 10pt; color: black;">
,</span></font><font color="green" face="Courier New" size="2"><span style="font-size: 10pt; color: green;">"7"</span></font><font color="black" face="Courier New" size="2"><span style="font-size: 10pt; color: black;">
,</span></font><font color="green" face="Courier New" size="2"><span style="font-size: 10pt; color: green;">"A"</span></font><font color="black" face="Courier New" size="2"><span style="font-size: 10pt; color: black;">
,</span></font><font color="green" face="Courier New" size="2"><span style="font-size: 10pt; color: green;">"C"</span></font><font color="black" face="Courier New" size="2"><span style="font-size: 10pt; color: black;">
,</span></font><font color="green" face="Courier New" size="2"><span style="font-size: 10pt; color: green;">"D"</span></font><font color="black" face="Courier New" size="2"><span style="font-size: 10pt; color: black;">
,</span></font><font color="green" face="Courier New" size="2"><span style="font-size: 10pt; color: green;">"G"</span></font><font color="black" face="Courier New" size="2"><span style="font-size: 10pt; color: black;">
,</span></font><font color="green" face="Courier New" size="2"><span style="font-size: 10pt; color: green;">"L"</span></font><font color="black" face="Courier New" size="2"><span style="font-size: 10pt; color: black;">
,</span></font><font color="green" face="Courier New" size="2"><span style="font-size: 10pt; color: green;">"M"</span></font><font color="black" face="Courier New" size="2"><span style="font-size: 10pt; color: black;">
,</span></font><font color="green" face="Courier New" size="2"><span style="font-size: 10pt; color: green;">"P"</span></font><font color="black" face="Courier New" size="2"><span style="font-size: 10pt; color: black;">
,</span></font><font color="green" face="Courier New" size="2"><span style="font-size: 10pt; color: green;">"Q"</span></font><font color="black" face="Courier New" size="2"><span style="font-size: 10pt; color: black;">
,</span></font><font color="green" face="Courier New" size="2"><span style="font-size: 10pt; color: green;">"S"</span></font><font color="black" face="Courier New" size="2"><span style="font-size: 10pt; color: black;">
,</span></font><font color="green" face="Courier New" size="2"><span style="font-size: 10pt; color: green;">"V"</span></font><font color="black" face="Courier New" size="2"><span style="font-size: 10pt; color: black;">
,</span></font><font color="green" face="Courier New" size="2"><span style="font-size: 10pt; color: green;">"Z"</span></font><font color="black" face="Courier New" size="2"><span style="font-size: 10pt; color: black;">
) )</span></font><font face="Courier New" size="2"><span style="font-size: 10pt;"></span></font></p>
<p style=""><font color="black" face="Courier New" size="2"><span style="font-size: 10pt; color: black;"> </span></font><b><font color="#960000" face="Courier New" size="2"><span style="font-size: 10pt; color: rgb(150, 0, 0); font-weight: bold;">
then</span></font></b><font face="Courier New" size="2"><span style="font-size: 10pt;"></span></font></p>
<p style=""><font color="black" face="Courier New" size="2"><span style="font-size: 10pt; color: black;"> System.out.println
(</span></font><font color="green" face="Courier New" size="2"><span style="font-size: 10pt; color: green;">"0"</span></font><font color="black" face="Courier New" size="2"><span style="font-size: 10pt; color: black;">
);</span></font><font face="Courier New" size="2"><span style="font-size: 10pt;"></span></font></p>
<p style=""><font color="black" face="Courier New" size="2"><span style="font-size: 10pt; color: black;"> Action
action = createAction(</span></font><font color="green" face="Courier New" size="2"><span style="font-size: 10pt; color: green;">"W250.42"</span></font><font color="black" face="Courier New" size="2"><span style="font-size: 10pt; color: black;">
, </span></font><b><font color="#960000" face="Courier New" size="2"><span style="font-size: 10pt; color: rgb(150, 0, 0); font-weight: bold;">false</span></font></b><font color="black" face="Courier New" size="2"><span style="font-size: 10pt; color: black;">
, </span></font><b><font color="#960000" face="Courier New" size="2"><span style="font-size: 10pt; color: rgb(150, 0, 0); font-weight: bold;">true</span></font></b><font color="black" face="Courier New" size="2"><span style="font-size: 10pt; color: black;">
);</span></font><font face="Courier New" size="2"><span style="font-size: 10pt;"></span></font></p>
<p style=""><font color="black" face="Courier New" size="2"><span style="font-size: 10pt; color: black;"> retList.add(action);</span></font><font face="Courier New" size="2"><span style="font-size: 10pt;"></span>
</font></p>
<p style=""><b><font color="#960000" face="Courier New" size="2"><span style="font-size: 10pt; color: rgb(150, 0, 0); font-weight: bold;">end</span></font></b><font face="Courier New" size="2"><span style="font-size: 10pt;">
</span></font></p>
<p><font face="Arial" size="2"><span style="font-size: 10pt; font-family: Arial;"> </span></font></p>
<p><font face="Arial" size="2"><span style="font-size: 10pt; font-family: Arial;"> </span></font></p>
<p><font face="Arial" size="2"><span style="font-size: 10pt; font-family: Arial;">both DTO and </span></font><font color="black" face="Courier New" size="2"><span style="font-size: 10pt; color: black;">w250_4_1 </span></font>
<font face="Arial" size="2"><span style="font-size: 10pt; font-family: Arial;">are extremely simple beans. </span></font><font color="black" face="Courier New" size="2"><span style="font-size: 10pt; color: black;">w250_4_1
</span></font><font face="Arial" size="2"><span style="font-size: 10pt; font-family: Arial;">just has 1 property 'value'
which is a String and DTO has one property </span></font><font color="black" face="Courier New" size="2"><span style="font-size: 10pt; color: black;">w250_4_1 </span></font><font face="Arial" size="2"><span style="font-size: 10pt; font-family: Arial;">
which is the bean </span></font><font color="black" face="Courier New" size="2"><span style="font-size: 10pt; color: black;">w250_4_1</span></font><font face="Arial" size="2"><span style="font-size: 10pt; font-family: Arial;">
.</span></font></p>
<p><font face="Arial" size="2"><span style="font-size: 10pt; font-family: Arial;"> </span></font></p>
<p><font face="Arial" size="2"><span style="font-size: 10pt; font-family: Arial;">Now when I put "0" into </span></font><font color="black" face="Courier New" size="2"><span style="font-size: 10pt; color: black;">w250_4_1
</span></font><font face="Arial" size="2"><span style="font-size: 10pt; font-family: Arial;"> then everything works fine. The
rule is true and the 'then' portion is executed. However, if I set </span></font><font color="black" face="Courier New" size="2"><span style="font-size: 10pt; color: black;">w250_4_1</span></font><font face="Arial" size="2">
<span style="font-size: 10pt; font-family: Arial;"> to "6" (which is also
present in the in (…)) then I get the following error.</span></font></p>
<p><font face="Arial" size="2"><span style="font-size: 10pt; font-family: Arial;"> </span></font></p>
<p style=""><u><font color="navy" face="Courier New" size="2"><span style="font-size: 10pt; color: navy;">org.drools.RuntimeDroolsException</span></font></u><font color="red" face="Courier New" size="2"><span style="font-size: 10pt; color: red;">
: Exception executing predicate
org.drools.base.mvel.MVELPredicateExpression@118fa47</span></font><font face="Courier New" size="2"><span style="font-size: 10pt;"></span></font></p>
<p style=""><font color="red" face="Courier New" size="2"><span style="font-size: 10pt; color: red;"> at
org.drools.rule.PredicateConstraint.isAllowed(</span></font><u><font color="navy" face="Courier New" size="2"><span style="font-size: 10pt; color: navy;">PredicateConstraint.java:197</span></font></u><font color="red" face="Courier New" size="2">
<span style="font-size: 10pt; color: red;">)</span></font><font face="Courier New" size="2"><span style="font-size: 10pt;"></span></font></p>
<p style=""><font color="red" face="Courier New" size="2"><span style="font-size: 10pt; color: red;"> at
org.drools.reteoo.AlphaNode.assertObject(</span></font><u><font color="navy" face="Courier New" size="2"><span style="font-size: 10pt; color: navy;">AlphaNode.java:122</span></font></u><font color="red" face="Courier New" size="2">
<span style="font-size: 10pt; color: red;">)</span></font><font face="Courier New" size="2"><span style="font-size: 10pt;"></span></font></p>
<p style=""><font color="red" face="Courier New" size="2"><span style="font-size: 10pt; color: red;"> at
org.drools.reteoo.CompositeObjectSinkAdapter.propagateAssertObject(</span></font><u><font color="navy" face="Courier New" size="2"><span style="font-size: 10pt; color: navy;">CompositeObjectSinkAdapter.java:317</span></font>
</u><font color="red" face="Courier New" size="2"><span style="font-size: 10pt; color: red;">)</span></font><font face="Courier New" size="2"><span style="font-size: 10pt;"></span></font></p>
<p style=""><font color="red" face="Courier New" size="2"><span style="font-size: 10pt; color: red;"> at
org.drools.reteoo.ObjectTypeNode.assertObject(</span></font><u><font color="navy" face="Courier New" size="2"><span style="font-size: 10pt; color: navy;">ObjectTypeNode.java:168</span></font></u><font color="red" face="Courier New" size="2">
<span style="font-size: 10pt; color: red;">)</span></font><font face="Courier New" size="2"><span style="font-size: 10pt;"></span></font></p>
<p style=""><font color="red" face="Courier New" size="2"><span style="font-size: 10pt; color: red;"> at
org.drools.reteoo.Rete.assertObject(</span></font><u><font color="navy" face="Courier New" size="2"><span style="font-size: 10pt; color: navy;">Rete.java:168</span></font></u><font color="red" face="Courier New" size="2">
<span style="font-size: 10pt; color: red;">)</span></font><font face="Courier New" size="2"><span style="font-size: 10pt;"></span></font></p>
<p style=""><font color="red" face="Courier New" size="2"><span style="font-size: 10pt; color: red;"> at org.drools.reteoo.ReteooRuleBase.assertObject(</span></font><u><font color="navy" face="Courier New" size="2">
<span style="font-size: 10pt; color: navy;">ReteooRuleBase.java:190</span></font></u><font color="red" face="Courier New" size="2"><span style="font-size: 10pt; color: red;">)</span></font><font face="Courier New" size="2">
<span style="font-size: 10pt;"></span></font></p>
<p style=""><font color="red" face="Courier New" size="2"><span style="font-size: 10pt; color: red;"> at
org.drools.reteoo.ReteooWorkingMemory.doInsert(</span></font><u><font color="navy" face="Courier New" size="2"><span style="font-size: 10pt; color: navy;">ReteooWorkingMemory.java:70</span></font></u><font color="red" face="Courier New" size="2">
<span style="font-size: 10pt; color: red;">)</span></font><font face="Courier New" size="2"><span style="font-size: 10pt;"></span></font></p>
<p style=""><font color="red" face="Courier New" size="2"><span style="font-size: 10pt; color: red;"> at
org.drools.common.AbstractWorkingMemory.insert(</span></font><u><font color="navy" face="Courier New" size="2"><span style="font-size: 10pt; color: navy;">AbstractWorkingMemory.java:848</span></font></u><font color="red" face="Courier New" size="2">
<span style="font-size: 10pt; color: red;">)</span></font><font face="Courier New" size="2"><span style="font-size: 10pt;"></span></font></p>
<p style=""><font color="red" face="Courier New" size="2"><span style="font-size: 10pt; color: red;"> at
org.drools.common.AbstractWorkingMemory.insert(</span></font><u><font color="navy" face="Courier New" size="2"><span style="font-size: 10pt; color: navy;">AbstractWorkingMemory.java:822</span></font></u><font color="red" face="Courier New" size="2">
<span style="font-size: 10pt; color: red;">)</span></font><font face="Courier New" size="2"><span style="font-size: 10pt;"></span></font></p>
<p style=""><font color="red" face="Courier New" size="2"><span style="font-size: 10pt; color: red;"> at
org.drools.common.AbstractWorkingMemory.insert(</span></font><u><font color="navy" face="Courier New" size="2"><span style="font-size: 10pt; color: navy;">AbstractWorkingMemory.java:623</span></font></u><font color="red" face="Courier New" size="2">
<span style="font-size: 10pt; color: red;">)</span></font><font face="Courier New" size="2"><span style="font-size: 10pt;"></span></font></p>
<p style=""><font color="red" face="Courier New" size="2"><span style="font-size: 10pt; color: red;"> at com.sample.DroolsTest.main(</span></font><u><font color="navy" face="Courier New" size="2"><span style="font-size: 10pt; color: navy;">
DroolsTest.java:34</span></font></u><font color="red" face="Courier New" size="2"><span style="font-size: 10pt; color: red;">)</span></font><font face="Courier New" size="2"><span style="font-size: 10pt;"></span></font></p>
<p style=""><font color="red" face="Courier New" size="2"><span style="font-size: 10pt; color: red;">Caused by: </span></font><u><font color="navy" face="Courier New" size="2"><span style="font-size: 10pt; color: navy;">
org.mvel.PropertyAccessException</span></font></u><font color="red" face="Courier New" size="2"><span style="font-size: 10pt; color: red;">: failed to access property: <<==>> in: class
com.sample.DTOShadowProxy</span></font><font face="Courier New" size="2"><span style="font-size: 10pt;"></span></font></p>
<p style=""><font color="red" face="Courier New" size="2"><span style="font-size: 10pt; color: red;"> at
org.mvel.optimizers.impl.refl.ReflectiveAccessorOptimizer.compileGetChain(</span></font><u><font color="navy" face="Courier New" size="2"><span style="font-size: 10pt; color: navy;">ReflectiveAccessorOptimizer.java:137</span>
</font></u><font color="red" face="Courier New" size="2"><span style="font-size: 10pt; color: red;">)</span></font><font face="Courier New" size="2"><span style="font-size: 10pt;"></span></font></p>
<p style=""><font color="red" face="Courier New" size="2"><span style="font-size: 10pt; color: red;"> at
org.mvel.optimizers.impl.refl.ReflectiveAccessorOptimizer.optimizeAccessor(</span></font><u><font color="navy" face="Courier New" size="2"><span style="font-size: 10pt; color: navy;">ReflectiveAccessorOptimizer.java:96</span>
</font></u><font color="red" face="Courier New" size="2"><span style="font-size: 10pt; color: red;">)</span></font><font face="Courier New" size="2"><span style="font-size: 10pt;"></span></font></p>
<p style=""><font color="red" face="Courier New" size="2"><span style="font-size: 10pt; color: red;"> at
org.mvel.ASTNode.getReducedValueAccelerated(</span></font><u><font color="navy" face="Courier New" size="2"><span style="font-size: 10pt; color: navy;">ASTNode.java:194</span></font></u><font color="red" face="Courier New" size="2">
<span style="font-size: 10pt; color: red;">)</span></font><font face="Courier New" size="2"><span style="font-size: 10pt;"></span></font></p>
<p style=""><font color="red" face="Courier New" size="2"><span style="font-size: 10pt; color: red;"> at
org.mvel.ast.Or.getReducedValueAccelerated(</span></font><u><font color="navy" face="Courier New" size="2"><span style="font-size: 10pt; color: navy;">Or.java:18</span></font></u><font color="red" face="Courier New" size="2">
<span style="font-size: 10pt; color: red;">)</span></font><font face="Courier New" size="2"><span style="font-size: 10pt;"></span></font></p>
<p style=""><font color="red" face="Courier New" size="2"><span style="font-size: 10pt; color: red;"> at org.mvel.MVELRuntime.execute(</span></font><u><font color="navy" face="Courier New" size="2"><span style="font-size: 10pt; color: navy;">
MVELRuntime.java:87</span></font></u><font color="red" face="Courier New" size="2"><span style="font-size: 10pt; color: red;">)</span></font><font face="Courier New" size="2"><span style="font-size: 10pt;"></span></font></p>
<p style=""><font color="red" face="Courier New" size="2"><span style="font-size: 10pt; color: red;"> at org.mvel.CompiledExpression.getValue(</span></font><u><font color="navy" face="Courier New" size="2"><span style="font-size: 10pt; color: navy;">
CompiledExpression.java:98</span></font></u><font color="red" face="Courier New" size="2"><span style="font-size: 10pt; color: red;">)</span></font><font face="Courier New" size="2"><span style="font-size: 10pt;"></span></font>
</p>
<p style=""><font color="red" face="Courier New" size="2"><span style="font-size: 10pt; color: red;"> at org.mvel.MVEL.executeExpression(</span></font><u><font color="navy" face="Courier New" size="2"><span style="font-size: 10pt; color: navy;">
MVEL.java:202</span></font></u><font color="red" face="Courier New" size="2"><span style="font-size: 10pt; color: red;">)</span></font><font face="Courier New" size="2"><span style="font-size: 10pt;"></span></font></p>
<p style=""><font color="red" face="Courier New" size="2"><span style="font-size: 10pt; color: red;"> at
org.drools.base.mvel.MVELPredicateExpression.evaluate(</span></font><u><font color="navy" face="Courier New" size="2"><span style="font-size: 10pt; color: navy;">MVELPredicateExpression.java:36</span></font></u><font color="red" face="Courier New" size="2">
<span style="font-size: 10pt; color: red;">)</span></font><font face="Courier New" size="2"><span style="font-size: 10pt;"></span></font></p>
<p style=""><font color="red" face="Courier New" size="2"><span style="font-size: 10pt; color: red;"> at
org.drools.rule.PredicateConstraint.isAllowed(</span></font><u><font color="navy" face="Courier New" size="2"><span style="font-size: 10pt; color: navy;">PredicateConstraint.java:191</span></font></u><font color="red" face="Courier New" size="2">
<span style="font-size: 10pt; color: red;">)</span></font><font face="Courier New" size="2"><span style="font-size: 10pt;"></span></font></p>
<p style=""><font color="red" face="Courier New" size="2"><span style="font-size: 10pt; color: red;"> ... 10 more</span></font><font face="Courier New" size="2"><span style="font-size: 10pt;"></span></font></p>
<p style=""><font color="red" face="Courier New" size="2"><span style="font-size: 10pt; color: red;">Caused by: </span></font><u><font color="navy" face="Courier New" size="2"><span style="font-size: 10pt; color: navy;">
org.mvel.PropertyAccessException</span></font></u><font color="red" face="Courier New" size="2"><span style="font-size: 10pt; color: red;">: could not access property ('=')</span></font><font face="Courier New" size="2">
<span style="font-size: 10pt;"></span></font></p>
<p style=""><font color="red" face="Courier New" size="2"><span style="font-size: 10pt; color: red;"> at
org.mvel.optimizers.impl.refl.ReflectiveAccessorOptimizer.getBeanProperty(</span></font><u><font color="navy" face="Courier New" size="2"><span style="font-size: 10pt; color: navy;">ReflectiveAccessorOptimizer.java:252</span>
</font></u><font color="red" face="Courier New" size="2"><span style="font-size: 10pt; color: red;">)</span></font><font face="Courier New" size="2"><span style="font-size: 10pt;"></span></font></p>
<p style=""><font color="red" face="Courier New" size="2"><span style="font-size: 10pt; color: red;"> at
org.mvel.optimizers.impl.refl.ReflectiveAccessorOptimizer.compileGetChain(</span></font><u><font color="navy" face="Courier New" size="2"><span style="font-size: 10pt; color: navy;">ReflectiveAccessorOptimizer.java:106</span>
</font></u><font color="red" face="Courier New" size="2"><span style="font-size: 10pt; color: red;">)</span></font><font face="Courier New" size="2"><span style="font-size: 10pt;"></span></font></p>
<p style=""><font color="red" face="Courier New" size="2"><span style="font-size: 10pt; color: red;"> ... 18 more</span></font><font face="Courier New" size="2"><span style="font-size: 10pt;"></span></font></p>
<p><font face="Arial" size="2"><span style="font-size: 10pt; font-family: Arial;"> </span></font></p>
<p><font face="Arial" size="2"><span style="font-size: 10pt; font-family: Arial;">If I keep </span></font><font color="black" face="Courier New" size="2"><span style="font-size: 10pt; color: black;">w250_4_1</span></font>
<font face="Arial" size="2"><span style="font-size: 10pt; font-family: Arial;"> as "0", but move "0"
in the rule to any other place place in the in() list (e.g. in ("1","0",…),
then I get a similar error.</span></font></p>
<p><font face="Arial" size="2"><span style="font-size: 10pt; font-family: Arial;"> </span></font></p>
<p><font face="Arial" size="2"><span style="font-size: 10pt; font-family: Arial;">I get similar errors when trying to use 'not in'
in the same circumstance, except that then the property is ('!')</span></font></p>
<p><font face="Arial" size="2"><span style="font-size: 10pt; font-family: Arial;"> </span></font></p>
<p><font face="Arial" size="2"><span style="font-size: 10pt; font-family: Arial;">What seems to be the issue?</span></font></p>
<p><font face="Arial" size="2"><span style="font-size: 10pt; font-family: Arial;"> </span></font></p>
<p><font face="Arial" size="2"><span style="font-size: 10pt; font-family: Arial;">Thanks in advance!</span></font></p>
<p><font face="Arial" size="2"><span style="font-size: 10pt; font-family: Arial;"> </span></font></p>
<p><font face="Arial" size="2"><span style="font-size: 10pt; font-family: Arial;">Regards,</span></font></p>
<p><font face="Arial" size="2"><span style="font-size: 10pt; font-family: Arial;"> </span></font></p>
<p><font face="Arial" size="2"><span style="font-size: 10pt; font-family: Arial;">--Arsalan</span></font></p>
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