Re: NPE in RUTA

[Valentin Tablan <va...@tablan.net>]

Cool - thanks for looking into that!!

best,
Valentin

On 31/12/14 12:17, Peter Klügl wrote:
> Hi,
>
> sorry for the delayed response... holidays...
>
> yes, this is a stupid bug. The greedy anchoring is a rather new 
> feature and I missed to add some unit tests combining it with composed 
> (disjunctive/conjunctive) rule elements. Those exploit the normal rule 
> inference as a look ahead by providing a null ruleApply.
>
> I will fix it asap next week. Thanks for reporting it :-)
>
> Best,
>
> Peter
>
> Am 24.12.2014 um 16:11 schrieb Valentin Tablan:
>> Hi,
>>
>> I'm getting the following exception in RUTA:
>>
>> [snip]
>> Caused by: java.lang.NullPointerException
>> at
>> org.apache.uima.ruta.rule.RutaRuleElement.isAlreadyCovered(RutaRuleElement.java:130) 
>>
>> at
>> org.apache.uima.ruta.rule.RutaRuleElement.startMatch(RutaRuleElement.java:62) 
>>
>> at
>> org.apache.uima.ruta.rule.ComposedRuleElement.startMatch(ComposedRuleElement.java:83) 
>>
>> at
>> org.apache.uima.ruta.rule.ComposedRuleElement.startMatch(ComposedRuleElement.java:73) 
>>
>> at org.apache.uima.ruta.rule.RutaRule.apply(RutaRule.java:47)
>> at org.apache.uima.ruta.rule.RutaRule.apply(RutaRule.java:40)
>> at org.apache.uima.ruta.rule.RutaRule.apply(RutaRule.java:29)
>> at org.apache.uima.ruta.RutaScriptBlock.apply(RutaScriptBlock.java:63)
>> at org.apache.uima.ruta.RutaModule.apply(RutaModule.java:48)
>> at org.apache.uima.ruta.engine.RutaEngine.process(RutaEngine.java:494)
>> ... 13 more
>>
>>
>>
>> Going through the trace, I can't see how that could ever not cause an 
>> NPE:
>> ComposedRuleElement.java:83 calls startMatch(extendedMatch, null,
>> composedMatch, this, stream, crowd), providing null for ruleApply, 
>> which is
>> ultimately dereferenced at RutaRuleElement.java:130
>>
>> Am I using some strange language construct that causes it to go down 
>> some
>> unexpected branch?
>>
>> Thanks,
>> Valentin
>>
>>
>