Re: [rules-users] NullPointerException when updating a fact
If you wish to see it working, you can grab my maven test harness with your code in here:
git clone -b 2013-07-30-validate-first-name
git@github.com:gratiartis/scattercode-drools-scenarios.git
Just run the test in src/test/java/demos/validate/ValidateTest.java
However, I now know why yours is failing. The project above uses Drools 5.4.0. I'm
guessing that you're using 5.5.0.Final, because if I switch version in my pom.xml,
then I get a NullPointerException. I suspect that you have hit upon one of the many bugs
in 5.5.0.Final.
Steve
On 30 Jul 2013, at 09:50, Stephen Masters <stephen.masters(a)me.com> wrote:
The fact that all of your classes were static was ringing alarm
bells, so I tested it without that.
It works perfectly well if you remove 'static' from everything.
Steve
On 30 Jul 2013, at 08:43, schenka7 <eugen.berenstein(a)gmail.com> wrote:
> I have appended the code that leads to the exception.
>
> I have also noticed that the exception doesn't arise when using the concrete
> FirstName type in the retracting rule. I have been using the generic base
> class Value because I didn't want to write the same rule for all types
> extending from it.
>
> Main.java <http://drools.46999.n3.nabble.com/file/n4025204/Main.java>
> validation.drl
> <http://drools.46999.n3.nabble.com/file/n4025204/validation.drl>
>
>
>
> --
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http://drools.46999.n3.nabble.com/NullPointerException-when-updating-a-fa...
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