gitgabrio commented on PR #5820:
URL: 
https://github.com/apache/incubator-kie-drools/pull/5820#issuecomment-2033692994

   Hi @yurloc @tkobayas @mariofusco 
   looking at this PR, I noticed there are a lot of `null` check; e.g. :
   ```java     
   if (ctx.DRL_TRAIT() != null) {
               typeDeclarationDescr.setTrait(true);
   }
   ```
   I think I understand the reason, but I wonder if there could be a nicer 
design to avoid them. 
   I don't know how easy would be to change the 
`DRLParser.TypeDeclarationContext` (and similar *Context), but somehow all this 
null checking does not look very nice: what do you think ? (note: this would be 
just a nice-to-have)
   


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