[rules-users] java.lang.NullPointerException when using a custom operator

[Wolfgang Laun]

Stack trace for 5.5.0?


On 3 August 2013 08:58, Hezi Stern <hezis at delegatecom.com> wrote:

> Hi all,****
>
> ** **
>
> I have been working with Drools 5.2.0 on windows xp and I have a stable
> project.****
>
> I upgraded to windows 8, drools  5.5.0 and upgraded to eclipse Juno (from
> Helios).****
>
> ** **
>
> I have  now encountered a strange problem with my existing drools project.
> I have a accustom operator called *supersetof* which now results in the
> following error reported in the IDE in any file where the supersetOf is
> used  (LHS):****
>
> ** **
>
> *Error: java.lang.NullPointerException *****
>
> ** **
>
> After receving this error the drools parser does not work, hence this is
> the only error I have. ****
>
> ** **
>
> I have tried to use the Drools 5.2.0 again (on the new windows 8 machine)
> but I get the same problem so I guess it has to do with some IDE\eclispe
> configuration or compatibility issue.****
>
> Obviously not the drools project code as I have not made any changes to
> the working project.****
>
> ** **
>
> I did make sure the custom operator is configured similar to the way it
> was on my previous computer. ****
>
> ** **
>
> Any ideas? Is there a different configuration for Juno?****
>
> ** **
>
> Thanks,****
>
> Hezi****
>
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> rules-users at lists.jboss.org
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>
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