It&#39;s indeed a bug - a regression from 5.1.1.<br><br>Depending on the fact classes coming from Java or their being declared in DRL, different error scenarios can be reproduced - see JBRULES-3129 and JBRULES-3130, the latter being the issue reported by pamerida.<br>
<br>@pamerida: With 5.2.0, the only workaround that appears to cover all contigencies is to give the mvel-ish expression a wide berth and use<br><br>    eval( ((Three)list.get(0)).getA() == null )<br><br><br><div class="gmail_quote">
On 12 July 2011 01:37, pamerida <span dir="ltr">&lt;<a href="mailto:elpamm@hotmail.com">elpamm@hotmail.com</a>&gt;</span> wrote:<br><blockquote class="gmail_quote" style="border-left: 1px solid rgb(204, 204, 204); margin: 0pt 0pt 0pt 0.8ex; padding-left: 1ex;">
Hi.. sorry I didnt include all the information...<br>
heres the class Im using<br>
<br>
<a href="http://drools.46999.n3.nabble.com/file/n3160827/ruleInvoker.java" target="_blank">http://drools.46999.n3.nabble.com/file/n3160827/ruleInvoker.java</a><br>
ruleInvoker.java<br>
<br>
I use the method &quot;invocarReglas&quot;...<br>
<br>
I dont modify any fact, the values I show there are set before I insert the<br>
fact into the session...<br>
<br>
Im using drools 5.2....<br>
<br>
thanks for your help<br>
<font color="#888888"><br>
<br>
<br>
--<br>
View this message in context: <a href="http://drools.46999.n3.nabble.com/Drools-firing-wrong-rules-tp3160376p3160827.html" target="_blank">http://drools.46999.n3.nabble.com/Drools-firing-wrong-rules-tp3160376p3160827.html</a><br>

</font><div><div></div><div class="h5">Sent from the Drools: User forum mailing list archive at Nabble.com.<br>
_______________________________________________<br>
rules-users mailing list<br>
<a href="mailto:rules-users@lists.jboss.org">rules-users@lists.jboss.org</a><br>
<a href="https://lists.jboss.org/mailman/listinfo/rules-users" target="_blank">https://lists.jboss.org/mailman/listinfo/rules-users</a><br>
</div></div></blockquote></div><br>