Program: 85521
Project: 85521
Buggy source:
@Override public List<MatchMetaData> getMetaData(){
  List<MatchMetaData> map=new ArrayList<>();
  try {
    DatabaseMetaData md=connection.getMetaData();
    String schemaName=databaseProperties.getProperty("String_Node_Str");
    String skipEmptyTables=databaseProperties.getProperty("String_Node_Str");
    List<String> excludeTablesList=new ArrayList<>();
    String excludeTables=databaseProperties.getProperty("String_Node_Str");
    if (excludeTables != null && !"String_Node_Str".equals(excludeTables)) {
      String[] tempArr=excludeTables.split("String_Node_Str");
      excludeTablesList=Arrays.asList(tempArr);
    }
    log.info("String_Node_Str" + schemaName);
    try (ResultSet tableRS=getTableRS(md)){
      while (tableRS.next()) {
        String tableName=tableRS.getString(3);
        log.debug(tableName);
        if (excludeTablesList.contains(tableName)) {
          log.info("String_Node_Str" + tableName);
          continue;
        }
        if ((skipEmptyTables != null && skipEmptyTables.equals("String_Node_Str")) && (getRowNumber(tableName) == 0)) {
          log.info("String_Node_Str" + tableName);
          continue;
        }
        log.info("String_Node_Str" + tableName);
        List<String> pkeys=new ArrayList<>();
        try (ResultSet pkRS=getPKRS(md,tableName)){
          while (pkRS.next()) {
            String pkey=pkRS.getString(4);
            log.debug("String_Node_Str" + pkey);
            pkeys.add(pkey);
          }
        }
         try (ResultSet columnRS=getColumnRS(md,tableName)){
          while (columnRS.next()) {
            String columnName=getColumnName(columnRS);
            String colType=getColumnType(columnRS);
            map.add(new MatchMetaData(schemaName,tableName,pkeys,columnName,colType));
          }
        }
       }
    }
   }
 catch (  SQLException e) {
    log.error(e.toString());
  }
  return map;
}

Fixed version (ground truth):
@Override public List<MatchMetaData> getMetaData(){
  List<MatchMetaData> map=new ArrayList<>();
  try {
    DatabaseMetaData md=connection.getMetaData();
    String schemaName=databaseProperties.getProperty("String_Node_Str");
    String skipEmptyTables=databaseProperties.getProperty("String_Node_Str");
    List<String> excludeTablesList=new ArrayList<>();
    String excludeTables=databaseProperties.getProperty("String_Node_Str");
    if (excludeTables != null && !"String_Node_Str".equals(excludeTables)) {
      String[] tempArr=excludeTables.split("String_Node_Str");
      excludeTablesList=Arrays.asList(tempArr);
    }
    log.info("String_Node_Str" + schemaName);
    try (ResultSet tableRS=getTableRS(md)){
      while (tableRS.next()) {
        String tableName=tableRS.getString(3);
        log.debug(tableName);
        if (excludeTablesList.contains(tableName)) {
          log.info("String_Node_Str" + tableName);
          continue;
        }
        String schemaTableName=null;
        if (schemaName != null && !schemaName.equals("String_Node_Str")) {
          schemaTableName=schemaName + "String_Node_Str" + tableName;
        }
        if ((skipEmptyTables != null && skipEmptyTables.equals("String_Node_Str")) && (getRowNumber(schemaTableName) == 0)) {
          log.info("String_Node_Str" + tableName);
          continue;
        }
        log.info("String_Node_Str" + tableName);
        List<String> pkeys=new ArrayList<>();
        try (ResultSet pkRS=getPKRS(md,tableName)){
          while (pkRS.next()) {
            String pkey=pkRS.getString(4);
            log.debug("String_Node_Str" + pkey);
            pkeys.add(pkey);
          }
        }
         try (ResultSet columnRS=getColumnRS(md,tableName)){
          while (columnRS.next()) {
            String columnName=getColumnName(columnRS);
            String colType=getColumnType(columnRS);
            map.add(new MatchMetaData(schemaName,tableName,pkeys,columnName,colType));
          }
        }
       }
    }
   }
 catch (  SQLException e) {
    log.error(e.toString());
  }
  return map;
}