Because I'm using solr from trunk and not from lucid imagination I was missing KStemmer. So I decided to add this stemmer to my installation.
After some modifications KStemmer is now working fine as stand-alone. Now I have a KStemmerFilter. Next will be to write the KStemmerFilterFactory. I would place the Factory in "lucene-solr/solr/src/java/org/apache/solr/analysis/" to the other Factories, but where to place the Filter? Does it make sense to place the Filter somewhere under "lucene-solr/modules/analysis/common/src/java/org/apache/lucene/analysis/" ? But this is for Lucene and not Solr... Or should I place the Filter in a subdirectory of the Factories? Any suggestion for me? Regards, Bernd