Program: 163466
Project: 163466
Buggy source:
@Test public void testColumnValues(){
  final String[][] expectedValueOnFirstBatch=new String[][]{{"String_Node_Str","String_Node_Str"},{"String_Node_Str","String_Node_Str"},{"String_Node_Str",null}};
  final String[][] expectedValueOnSecondBatch=new String[][]{{"String_Node_Str","String_Node_Str"},{"String_Node_Str","String_Node_Str"},{"String_Node_Str","String_Node_Str"},{null,"String_Node_Str"}};
  BatchedColumnProcessor processor=new BatchedColumnProcessor(2){
    @Override public void batchProcessed(    int rowsInThisBatch){
      List<List<String>> columnValues=getColumnValuesAsList();
      Map<Integer,List<String>> columnsByIndex=getColumnValuesAsMapOfIndexes();
      String[][] expectedValues=getBatchesProcessed() == 0 ? expectedValueOnFirstBatch : expectedValueOnSecondBatch;
      assertEquals(columnValues.size(),expectedValues.length);
      for (int i=0; i < rowsInThisBatch; i++) {
        assertEquals(columnValues.get(i).size(),rowsInThisBatch);
        assertEquals(columnValues.get(i).toArray(),expectedValues[i]);
        assertEquals(columnsByIndex.get(i).toArray(),expectedValues[i]);
      }
      try {
        getColumnValuesAsMapOfNames();
        fail("String_Node_Str");
      }
 catch (      Exception e) {
      }
      assertEquals(getHeaders(),new String[]{"String_Node_Str","String_Node_Str","String_Node_Str"});
    }
  }
;
  CsvParserSettings settings=new CsvParserSettings();
  settings.setHeaderExtractionEnabled(true);
  settings.setRowProcessor(processor);
  new CsvParser(settings).parse(new StringReader(INPUT));
}

Fixed version (ground truth):
@Test public void testColumnValues(){
  final String[][] expectedValueOnFirstBatch=new String[][]{{"String_Node_Str","String_Node_Str"},{"String_Node_Str","String_Node_Str"},{"String_Node_Str",null}};
  final String[][] expectedValueOnSecondBatch=new String[][]{{"String_Node_Str","String_Node_Str"},{"String_Node_Str","String_Node_Str"},{"String_Node_Str","String_Node_Str"},{null,"String_Node_Str"}};
  BatchedColumnProcessor processor=new BatchedColumnProcessor(2){
    @Override public void batchProcessed(    int rowsInThisBatch){
      List<List<String>> columnValues=getColumnValuesAsList();
      Map<Integer,List<String>> columnsByIndex=getColumnValuesAsMapOfIndexes();
      String[][] expectedValues=getBatchesProcessed() == 0 ? expectedValueOnFirstBatch : expectedValueOnSecondBatch;
      assertEquals(columnValues.size(),expectedValues.length);
      for (int i=0; i < expectedValues.length; i++) {
        assertEquals(columnValues.get(i).size(),rowsInThisBatch);
        assertEquals(columnValues.get(i).toArray(),expectedValues[i]);
        assertEquals(columnsByIndex.get(i).toArray(),expectedValues[i]);
      }
      try {
        getColumnValuesAsMapOfNames();
        fail("String_Node_Str");
      }
 catch (      Exception e) {
      }
      assertEquals(getHeaders(),new String[]{"String_Node_Str","String_Node_Str","String_Node_Str"});
    }
  }
;
  CsvParserSettings settings=new CsvParserSettings();
  settings.setHeaderExtractionEnabled(true);
  settings.setRowProcessor(processor);
  new CsvParser(settings).parse(new StringReader(INPUT));
}