Matthias Gärtner created LUCENE-8141:
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             Summary: Inconsistent org.apache.lucene.codecs.PostingsFormat 
service definition?
                 Key: LUCENE-8141
                 URL: https://issues.apache.org/jira/browse/LUCENE-8141
             Project: Lucene - Core
          Issue Type: Bug
          Components: core/codecs
    Affects Versions: 7.2.1
            Reporter: Matthias Gärtner


I have a doubt about a seeming inconsistency w.r.t. to a service definition in 
the distribution JAR files:

 

"lucene-suggest-7.2.1.jar" contains 
"org.apache.lucene.search.suggest.document.*Completion50PostingsFormat*" under 
"/META-INF/services/org.apache.lucene.codecs.PostingsFormat" (and BTW _two 
copies_ of the license in that file?).

 

"lucene-core-7.2.1.jar" contains 
"org.apache.lucene.codecs.lucene50.*Lucene50PostingsFormat*" under 
"/META-INF/services/org.apache.lucene.codecs.PostingsFormat"

 

Apparently, it depends on the classpath order on the client side which 
implementation is used. Is it *intentional* that there are two unequal 
definitions in the same release?

 

Note: I've observed this because of some Jar Hell checker output, not because 
there's an actual malfunction that I'm aware of.



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