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<p class=MsoNormal><font size=2 color=navy face=Arial><span style='font-size:
10.0pt;font-family:Arial;color:navy'>Hi.<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 color=navy face=Arial><span style='font-size:
10.0pt;font-family:Arial;color:navy'><o:p> </o:p></span></font></p>
<p class=MsoNormal><font size=2 color=navy face=Arial><span style='font-size:
10.0pt;font-family:Arial;color:navy'>Jira Bug created. <a
href="http://jira.jboss.com/jira/browse/JBRULES-1089">http://jira.jboss..com/jira/browse/JBRULES-1089</a><o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 color=navy face=Arial><span style='font-size:
10.0pt;font-family:Arial;color:navy'><o:p> </o:p></span></font></p>
<p class=MsoNormal><font size=2 color=navy face=Arial><span style='font-size:
10.0pt;font-family:Arial;color:navy'>BTW, the work around works just fine. <o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 color=navy face=Arial><span style='font-size:
10.0pt;font-family:Arial;color:navy'><o:p> </o:p></span></font></p>
<p class=MsoNormal><font size=2 color=navy face=Arial><span style='font-size:
10.0pt;font-family:Arial;color:navy'>Thanks!<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 color=navy face=Arial><span style='font-size:
10.0pt;font-family:Arial;color:navy'><o:p> </o:p></span></font></p>
<p class=MsoNormal><font size=2 color=navy face=Arial><span style='font-size:
10.0pt;font-family:Arial;color:navy'>--Arsalan<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 color=navy face=Arial><span style='font-size:
10.0pt;font-family:Arial;color:navy'><o:p> </o:p></span></font></p>
<div>
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face="Times New Roman"><span style='font-size:12.0pt'>
<hr size=2 width="100%" align=center tabindex=-1>
</span></font></div>
<p class=MsoNormal><b><font size=2 face=Tahoma><span style='font-size:10.0pt;
font-family:Tahoma;font-weight:bold'>From:</span></font></b><font size=2
face=Tahoma><span style='font-size:10.0pt;font-family:Tahoma'>
rules-users-bounces@lists.jboss.org
[mailto:rules-users-bounces@lists.jboss.org] <b><span style='font-weight:bold'>On
Behalf Of </span></b>Edson Tirelli<br>
<b><span style='font-weight:bold'>Sent:</span></b> 13 August 2007 22:16<br>
<b><span style='font-weight:bold'>To:</span></b> Rules Users List<br>
<b><span style='font-weight:bold'>Subject:</span></b> Re: [rules-users] could
not access property ('=')</span></font><o:p></o:p></p>
</div>
<p class=MsoNormal><font size=3 face="Times New Roman"><span style='font-size:
12.0pt'><o:p> </o:p></span></font></p>
<p class=MsoNormal style='margin-bottom:12.0pt'><font size=3
face="Times New Roman"><span style='font-size:12.0pt'><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: <o:p></o:p></span></font></p>
<p><font size=3 face="Times New Roman"><span style='font-size:12.0pt'><o:p> </o:p></span></font></p>
<p><font size=2 color=black face="Courier New"><span style='font-size:10.0pt;
font-family:"Courier New";color:black'>when</span></font><o:p></o:p></p>
<p><font size=2 color=black face="Courier New"><span style='font-size:10.0pt;
font-family:"Courier New";color:black'>
$dto : DTO( )</span></font><o:p></o:p></p>
<p><font size=2 color=black face="Courier New"><span style='font-size:10.0pt;
font-family:"Courier New";color:black'>
W250_4_1( value </span></font><b><font size=2 color="#960000" face="Courier New"><span
style='font-size:10.0pt;font-family:"Courier New";color:#960000;font-weight:
bold'>in</span></font></b><font size=2 color=black face="Courier New"><span
style='font-size:10.0pt;font-family:"Courier New";color:black'> (</span></font><font
size=2 color=green face="Courier New"><span style='font-size:10.0pt;font-family:
"Courier New";color:green'>"0"</span></font><font size=2 color=black
face="Courier New"><span style='font-size:10.0pt;font-family:"Courier New";
color:black'> ,</span></font><font size=2 color=green face="Courier New"><span
style='font-size:10.0pt;font-family:"Courier New";color:green'>"1"</span></font><font
size=2 color=black face="Courier New"><span style='font-size:10.0pt;font-family:
"Courier New";color:black'> ,</span></font><font size=2 color=green
face="Courier New"><span style='font-size:10.0pt;font-family:"Courier New";
color:green'>"6"</span></font><font size=2 color=black
face="Courier New"><span style='font-size:10.0pt;font-family:"Courier New";
color:black'> ,</span></font><font size=2 color=green face="Courier New"><span
style='font-size:10.0pt;font-family:"Courier New";color:green'>"7"</span></font><font
size=2 color=black face="Courier New"><span style='font-size:10.0pt;font-family:
"Courier New";color:black'> ,</span></font><font size=2 color=green
face="Courier New"><span style='font-size:10.0pt;font-family:"Courier New";
color:green'>"A"</span></font><font size=2 color=black
face="Courier New"><span style='font-size:10.0pt;font-family:"Courier New";
color:black'> ,</span></font><font size=2 color=green face="Courier New"><span
style='font-size:10.0pt;font-family:"Courier New";color:green'>"C"</span></font><font
size=2 color=black face="Courier New"><span style='font-size:10.0pt;font-family:
"Courier New";color:black'> ,</span></font><font size=2 color=green
face="Courier New"><span style='font-size:10.0pt;font-family:"Courier New";
color:green'>"D"</span></font><font size=2 color=black
face="Courier New"><span style='font-size:10.0pt;font-family:"Courier New";
color:black'> ,</span></font><font size=2 color=green face="Courier New"><span
style='font-size:10.0pt;font-family:"Courier New";color:green'>"G"</span></font><font
size=2 color=black face="Courier New"><span style='font-size:10.0pt;font-family:
"Courier New";color:black'> ,</span></font><font size=2 color=green
face="Courier New"><span style='font-size:10.0pt;font-family:"Courier New";
color:green'>"L"</span></font><font size=2 color=black
face="Courier New"><span style='font-size:10.0pt;font-family:"Courier New";
color:black'> ,</span></font><font size=2 color=green face="Courier New"><span
style='font-size:10.0pt;font-family:"Courier New";color:green'>"M"</span></font><font
size=2 color=black face="Courier New"><span style='font-size:10.0pt;font-family:
"Courier New";color:black'> ,</span></font><font size=2 color=green
face="Courier New"><span style='font-size:10.0pt;font-family:"Courier New";
color:green'>"P"</span></font><font size=2 color=black
face="Courier New"><span style='font-size:10.0pt;font-family:"Courier New";
color:black'> ,</span></font><font size=2 color=green face="Courier New"><span
style='font-size:10.0pt;font-family:"Courier New";color:green'>"Q"</span></font><font
size=2 color=black face="Courier New"><span style='font-size:10.0pt;font-family:
"Courier New";color:black'> ,</span></font><font size=2 color=green
face="Courier New"><span style='font-size:10.0pt;font-family:"Courier New";
color:green'>"S"</span></font><font size=2 color=black
face="Courier New"><span style='font-size:10.0pt;font-family:"Courier New";
color:black'> ,</span></font><font size=2 color=green face="Courier New"><span
style='font-size:10.0pt;font-family:"Courier New";color:green'>"V"</span></font><font
size=2 color=black face="Courier New"><span style='font-size:10.0pt;font-family:
"Courier New";color:black'> ,</span></font><font size=2 color=green
face="Courier New"><span style='font-size:10.0pt;font-family:"Courier New";
color:green'>"Z"</span></font><font size=2 color=black
face="Courier New"><span style='font-size:10.0pt;font-family:"Courier New";
color:black'> ) ) from $dto.w250_4_1</span></font><o:p></o:p></p>
<p><font size=3 face="Times New Roman"><span style='font-size:12.0pt'>then<o:p></o:p></span></font></p>
<p class=MsoNormal style='margin-bottom:12.0pt'><font size=3
face="Times New Roman"><span style='font-size:12.0pt'><br>
Thanks, and hope it helps.<br>
<br>
Edson<br>
<br>
<o:p></o:p></span></font></p>
<div>
<p class=MsoNormal><span class=gmailquote><font size=3 face="Times New Roman"><span
style='font-size:12.0pt'>2007/8/13, Arsalan S. Zaidi < <a
href="mailto:arsalan.zaidi@capgemini.com">arsalan.zaidi@capgemini.com</a>>:</span></font></span><o:p></o:p></p>
<div link=blue vlink=purple>
<div>
<p><font size=2 face=Arial><span style='font-size:10.0pt;font-family:Arial'>Hi.</span></font><o:p></o:p></p>
<p><font size=2 face=Arial><span style='font-size:10.0pt;font-family:Arial'> </span></font><o:p></o:p></p>
<p><font size=2 face=Arial><span style='font-size:10.0pt;font-family:Arial'>I've
currently evaluating Drools 4.0 for a project of ours and I'm running into some
problems.</span></font><o:p></o:p></p>
<p><font size=2 face=Arial><span style='font-size:10.0pt;font-family:Arial'> </span></font><o:p></o:p></p>
<p><font size=2 face=Arial><span style='font-size:10.0pt;font-family:Arial'>I
have a rule which looks like this:</span></font><o:p></o:p></p>
<p><font size=2 face=Arial><span style='font-size:10.0pt;font-family:Arial'> </span></font><o:p></o:p></p>
<p><b><font size=2 color="#960000" face="Courier New"><span style='font-size:
10.0pt;font-family:"Courier New";color:#960000;font-weight:bold'>rule</span></font></b><font
size=2 color=black face="Courier New"><span style='font-size:10.0pt;font-family:
"Courier New";color:black'> </span></font><font size=2 color=green
face="Courier New"><span style='font-size:10.0pt;font-family:"Courier New";
color:green'>"W250.42 Editable"</span></font><o:p></o:p></p>
<p><font size=2 color=black face="Courier New"><span style='font-size:10.0pt;
font-family:"Courier New";color:black'> </span></font><b><font
size=2 color="#960000" face="Courier New"><span style='font-size:10.0pt;
font-family:"Courier New";color:#960000;font-weight:bold'>when</span></font></b><o:p></o:p></p>
<p><font size=2 color=black face="Courier New"><span style='font-size:10.0pt;
font-family:"Courier New";color:black'>
DTO(w250_4_1.value </span></font><b><font size=2 color="#960000"
face="Courier New"><span style='font-size:10.0pt;font-family:"Courier New";
color:#960000;font-weight:bold'>in</span></font></b><font size=2 color=black
face="Courier New"><span style='font-size:10.0pt;font-family:"Courier New";
color:black'> (</span></font><font size=2 color=green face="Courier New"><span
style='font-size:10.0pt;font-family:"Courier New";color:green'>"0"</span></font><font
size=2 color=black face="Courier New"><span style='font-size:10.0pt;font-family:
"Courier New";color:black'> ,</span></font><font size=2 color=green
face="Courier New"><span style='font-size:10.0pt;font-family:"Courier New";
color:green'>"1"</span></font><font size=2 color=black
face="Courier New"><span style='font-size:10.0pt;font-family:"Courier New";
color:black'> ,</span></font><font size=2 color=green face="Courier New"><span
style='font-size:10.0pt;font-family:"Courier New";color:green'>"6"</span></font><font
size=2 color=black face="Courier New"><span style='font-size:10.0pt;font-family:
"Courier New";color:black'> ,</span></font><font size=2 color=green
face="Courier New"><span style='font-size:10.0pt;font-family:"Courier New";
color:green'>"7"</span></font><font size=2 color=black
face="Courier New"><span style='font-size:10.0pt;font-family:"Courier New";
color:black'> ,</span></font><font size=2 color=green face="Courier New"><span
style='font-size:10.0pt;font-family:"Courier New";color:green'>"A"</span></font><font
size=2 color=black face="Courier New"><span style='font-size:10.0pt;font-family:
"Courier New";color:black'> ,</span></font><font size=2 color=green
face="Courier New"><span style='font-size:10.0pt;font-family:"Courier New";
color:green'>"C"</span></font><font size=2 color=black
face="Courier New"><span style='font-size:10.0pt;font-family:"Courier New";
color:black'> ,</span></font><font size=2 color=green face="Courier New"><span
style='font-size:10.0pt;font-family:"Courier New";color:green'>"D"</span></font><font
size=2 color=black face="Courier New"><span style='font-size:10.0pt;font-family:
"Courier New";color:black'> ,</span></font><font size=2 color=green
face="Courier New"><span style='font-size:10.0pt;font-family:"Courier New";
color:green'>"G"</span></font><font size=2 color=black
face="Courier New"><span style='font-size:10.0pt;font-family:"Courier New";
color:black'> ,</span></font><font size=2 color=green face="Courier New"><span
style='font-size:10.0pt;font-family:"Courier New";color:green'>"L"</span></font><font
size=2 color=black face="Courier New"><span style='font-size:10.0pt;font-family:
"Courier New";color:black'> ,</span></font><font size=2 color=green
face="Courier New"><span style='font-size:10.0pt;font-family:"Courier New";
color:green'>"M"</span></font><font size=2 color=black
face="Courier New"><span style='font-size:10.0pt;font-family:"Courier New";
color:black'> ,</span></font><font size=2 color=green face="Courier New"><span
style='font-size:10.0pt;font-family:"Courier New";color:green'>"P"</span></font><font
size=2 color=black face="Courier New"><span style='font-size:10.0pt;font-family:
"Courier New";color:black'> ,</span></font><font size=2 color=green
face="Courier New"><span style='font-size:10.0pt;font-family:"Courier New";
color:green'>"Q"</span></font><font size=2 color=black
face="Courier New"><span style='font-size:10.0pt;font-family:"Courier New";
color:black'> ,</span></font><font size=2 color=green face="Courier New"><span
style='font-size:10.0pt;font-family:"Courier New";color:green'>"S"</span></font><font
size=2 color=black face="Courier New"><span style='font-size:10.0pt;font-family:
"Courier New";color:black'> ,</span></font><font size=2 color=green
face="Courier New"><span style='font-size:10.0pt;font-family:"Courier New";
color:green'>"V"</span></font><font size=2 color=black
face="Courier New"><span style='font-size:10.0pt;font-family:"Courier New";
color:black'> ,</span></font><font size=2 color=green face="Courier New"><span
style='font-size:10.0pt;font-family:"Courier New";color:green'>"Z"</span></font><font
size=2 color=black face="Courier New"><span style='font-size:10.0pt;font-family:
"Courier New";color:black'> ) )</span></font><o:p></o:p></p>
<p><font size=2 color=black face="Courier New"><span style='font-size:10.0pt;
font-family:"Courier New";color:black'> </span></font><b><font
size=2 color="#960000" face="Courier New"><span style='font-size:10.0pt;
font-family:"Courier New";color:#960000;font-weight:bold'>then</span></font></b><o:p></o:p></p>
<p><font size=2 color=black face="Courier New"><span style='font-size:10.0pt;
font-family:"Courier New";color:black'>
System.out.println (</span></font><font size=2 color=green face="Courier New"><span
style='font-size:10.0pt;font-family:"Courier New";color:green'>"0"</span></font><font
size=2 color=black face="Courier New"><span style='font-size:10.0pt;font-family:
"Courier New";color:black'> );</span></font><o:p></o:p></p>
<p><font size=2 color=black face="Courier New"><span style='font-size:10.0pt;
font-family:"Courier New";color:black'>
Action action = createAction(</span></font><font size=2 color=green
face="Courier New"><span style='font-size:10.0pt;font-family:"Courier New";
color:green'>"W250.42"</span></font><font size=2 color=black
face="Courier New"><span style='font-size:10.0pt;font-family:"Courier New";
color:black'> , </span></font><b><font size=2 color="#960000" face="Courier New"><span
style='font-size:10.0pt;font-family:"Courier New";color:#960000;font-weight:
bold'>false</span></font></b><font size=2 color=black face="Courier New"><span
style='font-size:10.0pt;font-family:"Courier New";color:black'> , </span></font><b><font
size=2 color="#960000" face="Courier New"><span style='font-size:10.0pt;
font-family:"Courier New";color:#960000;font-weight:bold'>true</span></font></b><font
size=2 color=black face="Courier New"><span style='font-size:10.0pt;font-family:
"Courier New";color:black'> );</span></font><o:p></o:p></p>
<p><font size=2 color=black face="Courier New"><span style='font-size:10.0pt;
font-family:"Courier New";color:black'>
retList.add(action);</span></font><font size=2 face="Courier New"><span
style='font-size:10.0pt;font-family:"Courier New"'> </span></font><o:p></o:p></p>
<p><b><font size=2 color="#960000" face="Courier New"><span style='font-size:
10.0pt;font-family:"Courier New";color:#960000;font-weight:bold'>end</span></font></b><font
size=2 face="Courier New"><span style='font-size:10.0pt;font-family:"Courier New"'>
</span></font><o:p></o:p></p>
<p><font size=2 face=Arial><span style='font-size:10.0pt;font-family:Arial'> </span></font><o:p></o:p></p>
<p><font size=2 face=Arial><span style='font-size:10.0pt;font-family:Arial'> </span></font><o:p></o:p></p>
<p><font size=2 face=Arial><span style='font-size:10.0pt;font-family:Arial'>both
DTO and </span></font><font size=2 color=black face="Courier New"><span
style='font-size:10.0pt;font-family:"Courier New";color:black'>w250_4_1 </span></font><font
size=2 face=Arial><span style='font-size:10.0pt;font-family:Arial'>are
extremely simple beans. </span></font><font size=2 color=black
face="Courier New"><span style='font-size:10.0pt;font-family:"Courier New";
color:black'>w250_4_1 </span></font><font size=2 face=Arial><span
style='font-size:10.0pt;font-family:Arial'>just has 1 property 'value' which is
a String and DTO has one property </span></font><font size=2 color=black
face="Courier New"><span style='font-size:10.0pt;font-family:"Courier New";
color:black'>w250_4_1 </span></font><font size=2 face=Arial><span
style='font-size:10.0pt;font-family:Arial'>which is the bean </span></font><font
size=2 color=black face="Courier New"><span style='font-size:10.0pt;font-family:
"Courier New";color:black'>w250_4_1</span></font><font size=2 face=Arial><span
style='font-size:10.0pt;font-family:Arial'> ..</span></font><o:p></o:p></p>
<p><font size=2 face=Arial><span style='font-size:10.0pt;font-family:Arial'> </span></font><o:p></o:p></p>
<p><font size=2 face=Arial><span style='font-size:10.0pt;font-family:Arial'>Now
when I put "0" into </span></font><font size=2 color=black
face="Courier New"><span style='font-size:10.0pt;font-family:"Courier New";
color:black'>w250_4_1 </span></font><font size=2 face=Arial><span
style='font-size:10.0pt;font-family:Arial'>then everything works fine. The rule
is true and the 'then' portion is executed. However, if I set </span></font><font
size=2 color=black face="Courier New"><span style='font-size:10.0pt;font-family:
"Courier New";color:black'>w250_4_1</span></font><font size=2 face=Arial><span
style='font-size:10.0pt;font-family:Arial'> to "6" (which is also
present in the in (…)) then I get the following error.</span></font><o:p></o:p></p>
<p><font size=2 face=Arial><span style='font-size:10.0pt;font-family:Arial'> </span></font><o:p></o:p></p>
<p><u><font size=2 color=navy face="Courier New"><span style='font-size:10.0pt;
font-family:"Courier New";color:navy'>org.drools.RuntimeDroolsException</span></font></u><font
size=2 color=red face="Courier New"><span style='font-size:10.0pt;font-family:
"Courier New";color:red'> : Exception executing predicate
org.drools.base.mvel.MVELPredicateExpression@118fa47</span></font><o:p></o:p></p>
<p><font size=2 color=red face="Courier New"><span style='font-size:10.0pt;
font-family:"Courier New";color:red'> at
org.drools.rule.PredicateConstraint.isAllowed(</span></font><u><font size=2
color=navy face="Courier New"><span style='font-size:10.0pt;font-family:"Courier New";
color:navy'>PredicateConstraint.java:197</span></font></u><font size=2
color=red face="Courier New"><span style='font-size:10.0pt;font-family:"Courier New";
color:red'> )</span></font><o:p></o:p></p>
<p><font size=2 color=red face="Courier New"><span style='font-size:10.0pt;
font-family:"Courier New";color:red'> at
org.drools.reteoo.AlphaNode.assertObject(</span></font><u><font size=2
color=navy face="Courier New"><span style='font-size:10.0pt;font-family:"Courier New";
color:navy'>AlphaNode.java:122</span></font></u><font size=2 color=red
face="Courier New"><span style='font-size:10.0pt;font-family:"Courier New";
color:red'> )</span></font><o:p></o:p></p>
<p><font size=2 color=red face="Courier New"><span style='font-size:10.0pt;
font-family:"Courier New";color:red'> at
org.drools.reteoo.CompositeObjectSinkAdapter.propagateAssertObject(</span></font><u><font
size=2 color=navy face="Courier New"><span style='font-size:10.0pt;font-family:
"Courier New";color:navy'>CompositeObjectSinkAdapter.java:317</span></font> </u><font
size=2 color=red face="Courier New"><span style='font-size:10.0pt;font-family:
"Courier New";color:red'>)</span></font><o:p></o:p></p>
<p><font size=2 color=red face="Courier New"><span style='font-size:10.0pt;
font-family:"Courier New";color:red'> at
org.drools.reteoo.ObjectTypeNode.assertObject(</span></font><u><font size=2
color=navy face="Courier New"><span style='font-size:10.0pt;font-family:"Courier New";
color:navy'>ObjectTypeNode.java:168</span></font></u><font size=2 color=red
face="Courier New"><span style='font-size:10.0pt;font-family:"Courier New";
color:red'> )</span></font><o:p></o:p></p>
<p><font size=2 color=red face="Courier New"><span style='font-size:10.0pt;
font-family:"Courier New";color:red'> at
org.drools.reteoo.Rete.assertObject(</span></font><u><font size=2 color=navy
face="Courier New"><span style='font-size:10.0pt;font-family:"Courier New";
color:navy'>Rete.java:168</span></font></u><font size=2 color=red
face="Courier New"><span style='font-size:10.0pt;font-family:"Courier New";
color:red'> )</span></font><o:p></o:p></p>
<p><font size=2 color=red face="Courier New"><span style='font-size:10.0pt;
font-family:"Courier New";color:red'> at
org.drools.reteoo.ReteooRuleBase.assertObject(</span></font><u><font size=2
color=navy face="Courier New"><span style='font-size:10.0pt;font-family:"Courier New";
color:navy'> ReteooRuleBase.java:190</span></font></u><font size=2 color=red
face="Courier New"><span style='font-size:10.0pt;font-family:"Courier New";
color:red'>)</span></font><font size=2 face="Courier New"><span
style='font-size:10.0pt;font-family:"Courier New"'> </span></font><o:p></o:p></p>
<p><font size=2 color=red face="Courier New"><span style='font-size:10.0pt;
font-family:"Courier New";color:red'> at
org.drools.reteoo.ReteooWorkingMemory.doInsert(</span></font><u><font size=2
color=navy face="Courier New"><span style='font-size:10.0pt;font-family:"Courier New";
color:navy'>ReteooWorkingMemory.java:70</span></font></u><font size=2
color=red face="Courier New"><span style='font-size:10.0pt;font-family:"Courier New";
color:red'> )</span></font><o:p></o:p></p>
<p><font size=2 color=red face="Courier New"><span style='font-size:10.0pt;
font-family:"Courier New";color:red'> at
org.drools.common.AbstractWorkingMemory.insert(</span></font><u><font size=2
color=navy face="Courier New"><span style='font-size:10.0pt;font-family:"Courier New";
color:navy'>AbstractWorkingMemory.java:848</span></font></u><font size=2
color=red face="Courier New"><span style='font-size:10.0pt;font-family:"Courier New";
color:red'> )</span></font><o:p></o:p></p>
<p><font size=2 color=red face="Courier New"><span style='font-size:10.0pt;
font-family:"Courier New";color:red'> at
org.drools.common.AbstractWorkingMemory.insert(</span></font><u><font size=2
color=navy face="Courier New"><span style='font-size:10.0pt;font-family:"Courier New";
color:navy'>AbstractWorkingMemory.java:822</span></font></u><font size=2
color=red face="Courier New"><span style='font-size:10.0pt;font-family:"Courier New";
color:red'> )</span></font><o:p></o:p></p>
<p><font size=2 color=red face="Courier New"><span style='font-size:10.0pt;
font-family:"Courier New";color:red'> at
org.drools.common.AbstractWorkingMemory.insert(</span></font><u><font size=2
color=navy face="Courier New"><span style='font-size:10.0pt;font-family:"Courier New";
color:navy'>AbstractWorkingMemory.java:623</span></font></u><font size=2
color=red face="Courier New"><span style='font-size:10.0pt;font-family:"Courier New";
color:red'> )</span></font><o:p></o:p></p>
<p><font size=2 color=red face="Courier New"><span style='font-size:10.0pt;
font-family:"Courier New";color:red'> at
com.sample.DroolsTest.main(</span></font><u><font size=2 color=navy
face="Courier New"><span style='font-size:10.0pt;font-family:"Courier New";
color:navy'> DroolsTest.java:34</span></font></u><font size=2 color=red
face="Courier New"><span style='font-size:10.0pt;font-family:"Courier New";
color:red'>)</span></font><o:p></o:p></p>
<p><font size=2 color=red face="Courier New"><span style='font-size:10.0pt;
font-family:"Courier New";color:red'>Caused by: </span></font><u><font size=2
color=navy face="Courier New"><span style='font-size:10.0pt;font-family:"Courier New";
color:navy'>org.mvel.PropertyAccessException</span></font></u><font size=2
color=red face="Courier New"><span style='font-size:10.0pt;font-family:"Courier New";
color:red'>: failed to access property: <<==>> in: class
com.sample.DTOShadowProxy</span></font><o:p></o:p></p>
<p><font size=2 color=red face="Courier New"><span style='font-size:10.0pt;
font-family:"Courier New";color:red'> at
org.mvel.optimizers.impl.refl.ReflectiveAccessorOptimizer.compileGetChain(</span></font><u><font
size=2 color=navy face="Courier New"><span style='font-size:10.0pt;font-family:
"Courier New";color:navy'>ReflectiveAccessorOptimizer.java:137 </span></font></u><font
size=2 color=red face="Courier New"><span style='font-size:10.0pt;font-family:
"Courier New";color:red'>)</span></font><o:p></o:p></p>
<p><font size=2 color=red face="Courier New"><span style='font-size:10.0pt;
font-family:"Courier New";color:red'> at
org.mvel.optimizers.impl.refl.ReflectiveAccessorOptimizer.optimizeAccessor(</span></font><u><font
size=2 color=navy face="Courier New"><span style='font-size:10.0pt;font-family:
"Courier New";color:navy'>ReflectiveAccessorOptimizer.java:96 </span></font></u><font
size=2 color=red face="Courier New"><span style='font-size:10.0pt;font-family:
"Courier New";color:red'>)</span></font><o:p></o:p></p>
<p><font size=2 color=red face="Courier New"><span style='font-size:10.0pt;
font-family:"Courier New";color:red'> at
org.mvel.ASTNode.getReducedValueAccelerated(</span></font><u><font size=2
color=navy face="Courier New"><span style='font-size:10.0pt;font-family:"Courier New";
color:navy'>ASTNode.java:194</span></font></u><font size=2 color=red
face="Courier New"><span style='font-size:10.0pt;font-family:"Courier New";
color:red'> )</span></font><o:p></o:p></p>
<p><font size=2 color=red face="Courier New"><span style='font-size:10.0pt;
font-family:"Courier New";color:red'> at
org.mvel.ast.Or.getReducedValueAccelerated(</span></font><u><font size=2
color=navy face="Courier New"><span style='font-size:10.0pt;font-family:"Courier New";
color:navy'>Or.java:18</span></font></u><font size=2 color=red
face="Courier New"><span style='font-size:10.0pt;font-family:"Courier New";
color:red'> )</span></font><o:p></o:p></p>
<p><font size=2 color=red face="Courier New"><span style='font-size:10.0pt;
font-family:"Courier New";color:red'> at
org.mvel.MVELRuntime.execute(</span></font><u><font size=2 color=navy
face="Courier New"><span style='font-size:10.0pt;font-family:"Courier New";
color:navy'> MVELRuntime.java:87</span></font></u><font size=2 color=red
face="Courier New"><span style='font-size:10.0pt;font-family:"Courier New";
color:red'>)</span></font><o:p></o:p></p>
<p><font size=2 color=red face="Courier New"><span style='font-size:10.0pt;
font-family:"Courier New";color:red'> at
org.mvel.CompiledExpression.getValue(</span></font><u><font size=2 color=navy
face="Courier New"><span style='font-size:10.0pt;font-family:"Courier New";
color:navy'> CompiledExpression.java:98</span></font></u><font size=2
color=red face="Courier New"><span style='font-size:10.0pt;font-family:"Courier New";
color:red'>)</span></font> <o:p></o:p></p>
<p><font size=2 color=red face="Courier New"><span style='font-size:10.0pt;
font-family:"Courier New";color:red'> at
org.mvel.MVEL.executeExpression(</span></font><u><font size=2 color=navy
face="Courier New"><span style='font-size:10.0pt;font-family:"Courier New";
color:navy'> MVEL.java:202</span></font></u><font size=2 color=red
face="Courier New"><span style='font-size:10.0pt;font-family:"Courier New";
color:red'>)</span></font><o:p></o:p></p>
<p><font size=2 color=red face="Courier New"><span style='font-size:10.0pt;
font-family:"Courier New";color:red'> at
org.drools.base.mvel.MVELPredicateExpression.evaluate(</span></font><u><font
size=2 color=navy face="Courier New"><span style='font-size:10.0pt;font-family:
"Courier New";color:navy'>MVELPredicateExpression.java:36</span></font></u><font
size=2 color=red face="Courier New"><span style='font-size:10.0pt;font-family:
"Courier New";color:red'> )</span></font><o:p></o:p></p>
<p><font size=2 color=red face="Courier New"><span style='font-size:10.0pt;
font-family:"Courier New";color:red'> at
org.drools.rule.PredicateConstraint.isAllowed(</span></font><u><font size=2
color=navy face="Courier New"><span style='font-size:10.0pt;font-family:"Courier New";
color:navy'>PredicateConstraint.java:191</span></font></u><font size=2
color=red face="Courier New"><span style='font-size:10.0pt;font-family:"Courier New";
color:red'> )</span></font><o:p></o:p></p>
<p><font size=2 color=red face="Courier New"><span style='font-size:10.0pt;
font-family:"Courier New";color:red'> ... 10 more</span></font><o:p></o:p></p>
<p><font size=2 color=red face="Courier New"><span style='font-size:10.0pt;
font-family:"Courier New";color:red'>Caused by: </span></font><u><font size=2
color=navy face="Courier New"><span style='font-size:10.0pt;font-family:"Courier New";
color:navy'>org.mvel.PropertyAccessException</span></font></u><font size=2
color=red face="Courier New"><span style='font-size:10.0pt;font-family:"Courier New";
color:red'>: could not access property ('=')</span></font><font size=2
face="Courier New"><span style='font-size:10.0pt;font-family:"Courier New"'> </span></font><o:p></o:p></p>
<p><font size=2 color=red face="Courier New"><span style='font-size:10.0pt;
font-family:"Courier New";color:red'> at
org.mvel.optimizers.impl.refl.ReflectiveAccessorOptimizer.getBeanProperty(</span></font><u><font
size=2 color=navy face="Courier New"><span style='font-size:10.0pt;font-family:
"Courier New";color:navy'>ReflectiveAccessorOptimizer.java:252 </span></font></u><font
size=2 color=red face="Courier New"><span style='font-size:10.0pt;font-family:
"Courier New";color:red'>)</span></font><o:p></o:p></p>
<p><font size=2 color=red face="Courier New"><span style='font-size:10.0pt;
font-family:"Courier New";color:red'> at
org.mvel.optimizers.impl.refl.ReflectiveAccessorOptimizer.compileGetChain(</span></font><u><font
size=2 color=navy face="Courier New"><span style='font-size:10.0pt;font-family:
"Courier New";color:navy'>ReflectiveAccessorOptimizer.java:106 </span></font></u><font
size=2 color=red face="Courier New"><span style='font-size:10.0pt;font-family:
"Courier New";color:red'>)</span></font><o:p></o:p></p>
<p><font size=2 color=red face="Courier New"><span style='font-size:10.0pt;
font-family:"Courier New";color:red'> ... 18 more</span></font><o:p></o:p></p>
<p><font size=2 face=Arial><span style='font-size:10.0pt;font-family:Arial'> </span></font><o:p></o:p></p>
<p><font size=2 face=Arial><span style='font-size:10.0pt;font-family:Arial'>If
I keep </span></font><font size=2 color=black face="Courier New"><span
style='font-size:10.0pt;font-family:"Courier New";color:black'>w250_4_1</span></font>
<font size=2 face=Arial><span style='font-size:10.0pt;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><o:p></o:p></p>
<p><font size=2 face=Arial><span style='font-size:10.0pt;font-family:Arial'> </span></font><o:p></o:p></p>
<p><font size=2 face=Arial><span style='font-size:10.0pt;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><o:p></o:p></p>
<p><font size=2 face=Arial><span style='font-size:10.0pt;font-family:Arial'> </span></font><o:p></o:p></p>
<p><font size=2 face=Arial><span style='font-size:10.0pt;font-family:Arial'>What
seems to be the issue?</span></font><o:p></o:p></p>
<p><font size=2 face=Arial><span style='font-size:10.0pt;font-family:Arial'> </span></font><o:p></o:p></p>
<p><font size=2 face=Arial><span style='font-size:10.0pt;font-family:Arial'>Thanks
in advance!</span></font><o:p></o:p></p>
<p><font size=2 face=Arial><span style='font-size:10.0pt;font-family:Arial'> </span></font><o:p></o:p></p>
<p><font size=2 face=Arial><span style='font-size:10.0pt;font-family:Arial'>Regards,</span></font><o:p></o:p></p>
<p><font size=2 face=Arial><span style='font-size:10.0pt;font-family:Arial'> </span></font><o:p></o:p></p>
<p><font size=2 face=Arial><span style='font-size:10.0pt;font-family:Arial'>--Arsalan</span></font><o:p></o:p></p>
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