Gus Heck created SOLR-18043:
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             Summary: Dead Code?: SolrDispatchFilter.abortErrorMessage
                 Key: SOLR-18043
                 URL: https://issues.apache.org/jira/browse/SOLR-18043
             Project: Solr
          Issue Type: Bug
          Components: Server
    Affects Versions: main(11.0)
            Reporter: Gus Heck


In reading code I discovered that the only reason HttpSolrCall (HSC) needs a 
reference to SolrDispatchFilter (SDF) is that it wants to [check and possibly 
use|https://github.com/apache/solr/blob/main/solr/core/src/java/org/apache/solr/servlet/HttpSolrCall.java#L421]
 the value stored in SDF.abortErrorMessage. 

However, it appears that this property is never set and will always be null, so 
we can probably remove the reference to SDF, the if block that checks for null 
before doing anything in HSC, and the property on SDF. 

The property dates back to 2007, so I'm filing this ticket in case someone 
thinks "Oh no! we've lost something important"... If I don't hear objections in 
week or so, I'll proceed with removal of the dead code.



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