public void process(JCas aJCas, ResultSpecification aResultSpec) throws AnnotatorProcessException {
this.logger.log(Level.INFO, "Snowball annotator starts processing");
// get get stemmer for the document language
String language = new Language(aJCas.getDocumentLanguage()).getLanguagePart();
SnowballProgram stemmer = (SnowballProgram) this.stemmers.get(language);
// create stemms if stemmer for the current document language is available
if (stemmer != null) {