<p dir="ltr">It looks like the OP is trying to retrieve a Java class with the API for accessing declared (DRL) types.... but to be honest they also mention if they put the type in /resources it works ok - so I'm not entirely clear what they are doing.</p>
<p dir="ltr">Sent on the move</p>
<div class="gmail_quot<blockquote class=" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex"><p dir="ltr">If ValidationError is a user-defined type, using the Data Modeller in the workbench, it is a java class and not a declared (DRL) type.</p>
<p dir="ltr">I don't think this is a bug; but perhaps a misunderstanding?</p>
<p dir="ltr">Sent on the move</p>
<div class="gmail_quote">On 15 Mar 2014 15:41, "Davide Sottara" <<a href="mailto:dsotty@gmail.com" target="_blank">dsotty@gmail.com</a>> wrote:<br type="attribution"><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">
<div bgcolor="#FFFFFF" text="#000000">
<div>Michael, I think the class is just
incidentally named ValidationError.<br>
<br>
The problem is in the "wiring" of the accessors into the
FieldDefinition<br>
(you see that "accessor=null" at the end of the toString in the
failing case).<br>
This wiring is done by the PackageBuilder when the DRL is
compiled, so <br>
I suspect that there is a problem with the interaction of the data
modeller<br>
and the package builder.. <br>
<br>
Jarkko, thanks for reporting this, it really looks like a WB bug!<br>
Could you please open a JIRA ticket?<br>
<br>
Davide<br>
<br>
On 03/15/2014 04:09 PM, Michael Anstis wrote:<br>
</div>
<blockquote type="cite">
<p dir="ltr">ValidationError is indeed an *internal* workbench
class. What makes you think you can query for it? </p>
<p dir="ltr">Sent on the move</p>
<div class="gmail_quote">On 15 Mar 2014 12:00, "JarkkoMakela" <<a href="mailto:jarkko.matinpoika@gmail.com" target="_blank">jarkko.matinpoika@gmail.com</a>>
wrote:<br type="attribution">
<blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">
This ValidationError is created with drools workbench data
modeller. It has<br>
only String fields.<br>
I have only couple of rules (which will create two
ValidationErrors) and one<br>
query (for the ValidationError) in the knowledgebase.<br>
<br>
<br>
-Jarkko<br>
<br>
<br>
<br>
--<br>
View this message in context: <a href="http://drools.46999.n3.nabble.com/NullPointerException-with-factType-get-fact-fieldname-tp4028688p4028744.html" target="_blank">http://drools.46999.n3.nabble.com/NullPointerException-with-factType-get-fact-fieldname-tp4028688p4028744.html</a><br>
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Nabble.com.<br>
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