Program: 33924
Project: 33924
Buggy source:
public Lumongo.AnalysisResult handleDocument(Document document){
  if (storedFieldName != null && enabled) {
    Object storeFieldValues=ResultHelper.getValueFromMongoDocument(document,storedFieldName);
    Lumongo.AnalysisResult.Builder analysisResult=Lumongo.AnalysisResult.newBuilder();
    analysisResult.setAnalysisRequest(analysisRequest);
    TermFreq docTermFreq=null;
    if (computeDocLevel || AnalysisRequest.SummaryType.TOP_TERMS_TOP_N.equals(summaryType)) {
      docTermFreq=new TermFreq(docFreq);
    }
    final TermFreq docTermFreqFinal=docTermFreq;
    LumongoUtil.handleLists(storeFieldValues,(value) -> {
      String content=value.toString();
      try (TokenStream tokenStream=analyzer.tokenStream(indexField,content)){
        tokenStream.reset();
        while (tokenStream.incrementToken()) {
          String token=tokenStream.getAttribute(CharTermAttribute.class).toString();
          if (analysisRequest.getTokens()) {
            analysisResult.addToken(token);
          }
          if (minWordLength > 0) {
            if (token.length() < minWordLength) {
              continue;
            }
          }
          if (maxWordLength > 0) {
            if (token.length() > maxWordLength) {
              continue;
            }
          }
          if (maxSegmentDocFreqCount != null || minSegmentDocFreqCount != null) {
            int termDocFreq=this.docFreq.getDocFreq(token);
            if (minSegmentDocFreqCount != null) {
              if (termDocFreq < minSegmentDocFreqCount) {
                continue;
              }
            }
            if (maxSegmentDocFreqCount != null) {
              if (termDocFreq > maxSegmentDocFreqCount) {
                continue;
              }
            }
          }
          if (computeDocLevel || AnalysisRequest.SummaryType.TOP_TERMS_TOP_N.equals(summaryType)) {
            docTermFreqFinal.addTerm(token);
          }
          if (summaryLevelEnabled && AnalysisRequest.SummaryType.ALL_TERMS_TOP_N.equals(summaryType)) {
            summaryTermFreq.addTerm(token);
          }
        }
      }
 catch (      Exception e) {
        throw new RuntimeException(e);
      }
    }
);
    if (computeDocLevel) {
      List<Lumongo.Term.Builder> termBuilderList=docTermFreq.getTopTerms(analysisRequest.getTopN(),analysisRequest.getTermSort());
      if (analysisRequest.getDocTerms()) {
        termBuilderList.forEach(analysisResult::addTerms);
        return analysisResult.build();
      }
      if (summaryLevelEnabled && AnalysisRequest.SummaryType.ALL_TERMS_TOP_N.equals(summaryType)) {
        termBuilderList.forEach(summaryTermFreq::addTerm);
      }
    }
    return null;
  }
  return null;
}

Fixed version (ground truth):
public Lumongo.AnalysisResult handleDocument(Document document){
  if (storedFieldName != null && enabled) {
    Object storeFieldValues=ResultHelper.getValueFromMongoDocument(document,storedFieldName);
    Lumongo.AnalysisResult.Builder analysisResult=Lumongo.AnalysisResult.newBuilder();
    analysisResult.setAnalysisRequest(analysisRequest);
    TermFreq docTermFreq=null;
    if (computeDocLevel || AnalysisRequest.SummaryType.TOP_TERMS_TOP_N.equals(summaryType)) {
      docTermFreq=new TermFreq(docFreq);
    }
    final TermFreq docTermFreqFinal=docTermFreq;
    LumongoUtil.handleLists(storeFieldValues,(value) -> {
      String content=value.toString();
      try (TokenStream tokenStream=analyzer.tokenStream(indexField,content)){
        tokenStream.reset();
        while (tokenStream.incrementToken()) {
          String token=tokenStream.getAttribute(CharTermAttribute.class).toString();
          if (analysisRequest.getTokens()) {
            analysisResult.addToken(token);
          }
          if (minWordLength > 0) {
            if (token.length() < minWordLength) {
              continue;
            }
          }
          if (maxWordLength > 0) {
            if (token.length() > maxWordLength) {
              continue;
            }
          }
          if (maxSegmentDocFreqCount != null || minSegmentDocFreqCount != null) {
            int termDocFreq=this.docFreq.getDocFreq(token);
            if (minSegmentDocFreqCount != null) {
              if (termDocFreq < minSegmentDocFreqCount) {
                continue;
              }
            }
            if (maxSegmentDocFreqCount != null) {
              if (termDocFreq > maxSegmentDocFreqCount) {
                continue;
              }
            }
          }
          if (computeDocLevel || AnalysisRequest.SummaryType.TOP_TERMS_TOP_N.equals(summaryType)) {
            docTermFreqFinal.addTerm(token);
          }
          if (summaryLevelEnabled && AnalysisRequest.SummaryType.ALL_TERMS_TOP_N.equals(summaryType)) {
            summaryTermFreq.addTerm(token);
          }
        }
      }
 catch (      Exception e) {
        throw new RuntimeException(e);
      }
    }
);
    if (computeDocLevel) {
      List<Lumongo.Term.Builder> termBuilderList=docTermFreq.getTopTerms(analysisRequest.getTopN(),analysisRequest.getTermSort());
      if (analysisRequest.getDocTerms()) {
        termBuilderList.forEach(analysisResult::addTerms);
        return analysisResult.build();
      }
      if (summaryLevelEnabled && AnalysisRequest.SummaryType.TOP_TERMS_TOP_N.equals(summaryType)) {
        termBuilderList.forEach(summaryTermFreq::addTerm);
      }
    }
    return null;
  }
  return null;
}