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    <div class="moz-cite-prefix">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
cite="mid:CAAG9P0uRiGgAXOWdF=3mAdkQikbuRpmGYfnHnN3LCwwZ_FtwWA@mail.gmail.com"
      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" &lt;<a
          moz-do-not-send="true"
          href="mailto:jarkko.matinpoika@gmail.com">jarkko.matinpoika@gmail.com</a>&gt;
        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 moz-do-not-send="true"
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>
          Sent from the Drools: User forum mailing list archive at
          Nabble.com.<br>
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