private List<String> createStringList(List<AnnotationFS> tokens, String[] segments) throws AnalysisEngineProcessException { List<String> tokenStrings = new ArrayList<String>(); tokenStrings.add(SENTENCE_START); FeaturePathInfo fp = new FeaturePathInfo(); initializeFeaturePathInfoFrom(fp, segments); for (AnnotationFS annotation : tokens) { String value = fp.getValue(annotation); if (!StringUtils.isBlank(value)) { if (toLowercase) { value = value.toLowerCase(); } tokenStrings.add(value); } } tokenStrings.add(SENTENCE_END); return tokenStrings; }