The analysis-extras plugin provides additional analyzers that rely
upon large dependencies/dictionaries.

It includes integration with ICU for multilingual support, and 
analyzers for Chinese and Polish.

ICU relies upon lucene-libs/lucene-analyzers-icu-X.Y.jar
and lib/icu4j-X.Y.jar

Smartcn relies upon lucene-libs/lucene-analyzers-smartcn-X.Y.jar

Stempel relies on lucene-libs/lucene-analyzers-stempel-X.Y.jar

Morfologik relies on lucene-libs/lucene-analyzers-morfologik-X.Y.jar
and lib/morfologik-*.jar