output: #fixed code
                                  public void doOneRandom(final CSVFormat format) throws Exception {
          final Random r = new Random();
  
          final int nLines = r.nextInt(4) + 1;
          final int nCol = r.nextInt(3) + 1;
          // nLines=1;nCol=2;
          final String[][] lines = new String[nLines][];
          for (int i = 0; i < nLines; i++) {
              final String[] line = new String[nCol];
              lines[i] = line;
              for (int j = 0; j < nCol; j++) {
                  line[j] = randStr();
              }
          }
  
          final StringWriter sw = new StringWriter();
          final CSVPrinter printer = new CSVPrinter(sw, format);
  
          for (int i = 0; i < nLines; i++) {
              // for (int j=0; j<lines[i].length; j++) System.out.println("### VALUE=:" + printable(lines[i][j]));
              printer.printRecord((Object[])lines[i]);
          }
  
          printer.flush();
          printer.close();
          final String result = sw.toString();
          // System.out.println("### :" + printable(result));
  
          final CSVParser parser = CSVParser.parse(result, format);
          final List<CSVRecord> parseResult = parser.getRecords();
  
          Utils.compare("Printer output :" + printable(result), lines, parseResult);
      }
input: #vulnerable code 
                                  public void doOneRandom(final CSVFormat format) throws Exception {
          final Random r = new Random();
  
          final int nLines = r.nextInt(4) + 1;
          final int nCol = r.nextInt(3) + 1;
          // nLines=1;nCol=2;
          final String[][] lines = new String[nLines][];
          for (int i = 0; i < nLines; i++) {
              final String[] line = new String[nCol];
              lines[i] = line;
              for (int j = 0; j < nCol; j++) {
                  line[j] = randStr();
              }
          }
  
          final StringWriter sw = new StringWriter();
          final CSVPrinter printer = new CSVPrinter(sw, format);
  
          for (int i = 0; i < nLines; i++) {
              // for (int j=0; j<lines[i].length; j++) System.out.println("### VALUE=:" + printable(lines[i][j]));
              printer.printRecord((Object[])lines[i]);
          }
  
          printer.flush();
          printer.close();
          final String result = sw.toString();
          // System.out.println("### :" + printable(result));
  
          final CSVParser parser = CSVParser.parseString(result, format);
          final List<CSVRecord> parseResult = parser.getRecords();
  
          Utils.compare("Printer output :" + printable(result), lines, parseResult);
      } 
                              #location 30 
                              #vulnerability type RESOURCE_LEAK