Program: 80807
Project: 80807
Buggy source:
@Override public Query parse() throws SyntaxError {
  final String fieldName=localParams.get(QueryParsing.V);
  final BooleanQuery booleanQuery=new BooleanQuery(true);
  int booleanClausesTotal=0;
  fetchDataFromRedis(redisCommand,maxJedisRetries);
  if (results != null) {
    log.debug("String_Node_Str",results.size(),fieldName);
    for (    final Map.Entry<String,Float> entry : results.entrySet()) {
      try {
        final TokenStream tokenStream;
        final String termString=entry.getKey();
        if (termString == null) {
          continue;
        }
        final Float score=entry.getValue();
        if (useQueryTimeAnalyzer) {
          log.trace("String_Node_Str",termString);
          tokenStream=req.getSchema().getQueryAnalyzer().tokenStream(fieldName,termString);
          final CharTermAttribute charAttribute=tokenStream.addAttribute(CharTermAttribute.class);
          tokenStream.reset();
          int counter=0;
          while (tokenStream.incrementToken()) {
            log.trace("String_Node_Str",++counter,charAttribute,score,termString,fieldName);
            addTermToQuery(booleanQuery,fieldName,new BytesRef(charAttribute),score);
            ++booleanClausesTotal;
          }
          tokenStream.end();
          tokenStream.close();
        }
 else {
          addTermToQuery(booleanQuery,fieldName,new BytesRef(termString),score);
          ++booleanClausesTotal;
        }
      }
 catch (      final IOException ex) {
        log.error("String_Node_Str",ex);
      }
    }
  }
  log.debug("String_Node_Str",fieldName,booleanClausesTotal);
  return booleanQuery;
}

Fixed version (ground truth):
@Override public Query parse() throws SyntaxError {
  final String fieldName=localParams.get(QueryParsing.V);
  final BooleanQuery booleanQuery=new BooleanQuery(true);
  int booleanClausesTotal=0;
  fetchDataFromRedis(redisCommand,maxJedisRetries);
  if (results != null) {
    log.debug("String_Node_Str",results.size(),fieldName);
    for (    final Map.Entry<String,Float> entry : results.entrySet()) {
      try {
        final String termString=entry.getKey();
        if (termString == null) {
          continue;
        }
        final Float score=entry.getValue();
        if (useQueryTimeAnalyzer) {
          log.trace("String_Node_Str",termString);
          try (final TokenStream tokenStream=req.getSchema().getQueryAnalyzer().tokenStream(fieldName,termString)){
            final CharTermAttribute charAttribute=tokenStream.addAttribute(CharTermAttribute.class);
            tokenStream.reset();
            int counter=0;
            while (tokenStream.incrementToken()) {
              log.trace("String_Node_Str",++counter,charAttribute,score,termString,fieldName);
              addTermToQuery(booleanQuery,fieldName,new BytesRef(charAttribute),score);
              ++booleanClausesTotal;
            }
            tokenStream.end();
          }
         }
 else {
          addTermToQuery(booleanQuery,fieldName,new BytesRef(termString),score);
          ++booleanClausesTotal;
        }
      }
 catch (      final IOException ex) {
        log.error("String_Node_Str",ex);
      }
    }
  }
  log.debug("String_Node_Str",fieldName,booleanClausesTotal);
  return booleanQuery;
}