output: #fixed code
                                  @Test
      public void testDefaultFormat() throws IOException {
          final String code = ""
                  + "a,b#\n"           // 1)
                  + "\"\n\",\" \",#\n"   // 2)
                  + "#,\"\"\n"         // 3)
                  + "# Final comment\n"// 4)
                  ;
          final String[][] res = {
                  {"a", "b#"},
                  {"\n", " ", "#"},
                  {"#", ""},
                  {"# Final comment"}
          };
  
          CSVFormat format = CSVFormat.DEFAULT;
          assertFalse(format.isCommentingEnabled());
  
          CSVParser parser = CSVParser.parse(code, format);
          List<CSVRecord> records = parser.getRecords();
          assertTrue(records.size() > 0);
  
          Utils.compare("Failed to parse without comments", res, records);
  
          final String[][] res_comments = {
                  {"a", "b#"},
                  {"\n", " ", "#"},
          };
  
          format = CSVFormat.DEFAULT.withCommentStart('#');
          parser.close();
          parser = CSVParser.parse(code, format);
          records = parser.getRecords();
  
          Utils.compare("Failed to parse with comments", res_comments, records);
          parser.close();
      }
input: #vulnerable code 
                                  @Test
      public void testDefaultFormat() throws IOException {
          final String code = ""
                  + "a,b#\n"           // 1)
                  + "\"\n\",\" \",#\n"   // 2)
                  + "#,\"\"\n"         // 3)
                  + "# Final comment\n"// 4)
                  ;
          final String[][] res = {
                  {"a", "b#"},
                  {"\n", " ", "#"},
                  {"#", ""},
                  {"# Final comment"}
          };
  
          CSVFormat format = CSVFormat.DEFAULT;
          assertFalse(format.isCommentingEnabled());
  
          CSVParser parser = CSVParser.parse(code, format);
          List<CSVRecord> records = parser.getRecords();
          assertTrue(records.size() > 0);
  
          Utils.compare("Failed to parse without comments", res, records);
  
          final String[][] res_comments = {
                  {"a", "b#"},
                  {"\n", " ", "#"},
          };
  
          format = CSVFormat.DEFAULT.withCommentStart('#');
          parser = CSVParser.parse(code, format);
          records = parser.getRecords();
  
          Utils.compare("Failed to parse with comments", res_comments, records);
      } 
                              #location 20 
                              #vulnerability type RESOURCE_LEAK