Program: 81521
Project: 81521
Buggy source:
public void testJEXLExpressions() throws IOException {
  Map beans=new HashMap();
  SimpleDateFormat dateFormat=new SimpleDateFormat("String_Node_Str");
  beans.put("String_Node_Str",dateFormat);
  MyBean obj=new MyBean();
  Bean bean=new Bean();
  beans.put("String_Node_Str",bean);
  beans.put("String_Node_Str",obj);
  beans.put("String_Node_Str",itDepartment);
  beans.put("String_Node_Str",mgrDepartment);
  mgrDepartment.getStaff().clear();
  InputStream is=new BufferedInputStream(getClass().getResourceAsStream(jexlXLS));
  XLSTransformer transformer=new XLSTransformer();
  transformer.setJexlInnerCollectionsAccess(true);
  HSSFWorkbook resultWorkbook=transformer.transformXLS(is,beans);
  is.close();
  is=new BufferedInputStream(getClass().getResourceAsStream(jexlXLS));
  POIFSFileSystem fs=new POIFSFileSystem(is);
  HSSFWorkbook sourceWorkbook=new HSSFWorkbook(fs);
  HSSFSheet sourceSheet=sourceWorkbook.getSheetAt(0);
  HSSFSheet resultSheet=resultWorkbook.getSheetAt(0);
  Map props=new HashMap();
  props.put("String_Node_Str",obj.getName());
  props.put("String_Node_Str","String_Node_Str");
  props.put("String_Node_Str",Boolean.valueOf(obj.getFlag()));
  props.put("String_Node_Str",Boolean.valueOf(obj.getName() == null));
  props.put("String_Node_Str",new Integer(obj.getName().length()));
  props.put("String_Node_Str",Boolean.valueOf(!obj.getCollection().isEmpty() && obj.getId() > 0));
  props.put("String_Node_Str",Boolean.valueOf(obj.getCollection().isEmpty() && obj.getId() == 1));
  props.put("String_Node_Str",Boolean.valueOf(!obj.getCollection().isEmpty()));
  props.put("String_Node_Str",Boolean.valueOf(obj.getId() > 1));
  props.put("String_Node_Str",Boolean.valueOf(obj.getId() == 1));
  props.put("String_Node_Str",Boolean.valueOf(obj.getId() != 1));
  props.put("String_Node_Str",Boolean.valueOf(obj.getId() == 1));
  props.put("String_Node_Str",new Integer(obj.getId() % 2));
  props.put("String_Node_Str",obj.getMyArray()[0] + "String_Node_Str" + obj.getMyArray()[1]);
  props.put("String_Node_Str",dateFormat.format(obj.getDate()));
  props.put("String_Node_Str",obj.printIt());
  props.put("String_Node_Str",obj.getName());
  props.put("String_Node_Str",obj.echo("String_Node_Str"));
  CellsChecker checker=new CellsChecker(props);
  checker.checkSection(sourceSheet,resultSheet,0,0,(short)0,(short)1,25,false,false);
  props.clear();
  props.put("String_Node_Str","String_Node_Str");
  checker.checkListCells(sourceSheet,25,resultSheet,25,(short)1,new String[]{((Bean.InnerBean)bean.getCollection().get(0)).getInnerCollection().get(0).toString(),((Bean.InnerBean)bean.getCollection().get(1)).getInnerCollection().get(0).toString(),((Bean.InnerBean)bean.getCollection().get(2)).getInnerCollection().get(0).toString()});
  saveWorkbook(resultWorkbook,jexlDestXLS);
}

Fixed version (ground truth):
public void testJEXLExpressions() throws IOException {
  Map beans=new HashMap();
  SimpleDateFormat dateFormat=new SimpleDateFormat("String_Node_Str");
  beans.put("String_Node_Str",dateFormat);
  MyBean obj=new MyBean();
  Bean bean=new Bean();
  beans.put("String_Node_Str",bean);
  beans.put("String_Node_Str",obj);
  beans.put("String_Node_Str",((Department)departments.get(0)).getStaff());
  beans.put("String_Node_Str",new ArrayList());
  beans.put("String_Node_Str",((Department)departments.get(1)).getStaff());
  beans.put("String_Node_Str",new ArrayList());
  beans.put("String_Node_Str",((Department)departments.get(2)).getStaff());
  InputStream is=new BufferedInputStream(getClass().getResourceAsStream(jexlXLS));
  XLSTransformer transformer=new XLSTransformer();
  transformer.setJexlInnerCollectionsAccess(true);
  HSSFWorkbook resultWorkbook=transformer.transformXLS(is,beans);
  is.close();
  is=new BufferedInputStream(getClass().getResourceAsStream(jexlXLS));
  POIFSFileSystem fs=new POIFSFileSystem(is);
  HSSFWorkbook sourceWorkbook=new HSSFWorkbook(fs);
  HSSFSheet sourceSheet=sourceWorkbook.getSheetAt(0);
  HSSFSheet resultSheet=resultWorkbook.getSheetAt(0);
  Map props=new HashMap();
  props.put("String_Node_Str",obj.getName());
  props.put("String_Node_Str","String_Node_Str");
  props.put("String_Node_Str",Boolean.valueOf(obj.getFlag()));
  props.put("String_Node_Str",Boolean.valueOf(obj.getName() == null));
  props.put("String_Node_Str",new Integer(obj.getName().length()));
  props.put("String_Node_Str",Boolean.valueOf(!obj.getCollection().isEmpty() && obj.getId() > 0));
  props.put("String_Node_Str",Boolean.valueOf(obj.getCollection().isEmpty() && obj.getId() == 1));
  props.put("String_Node_Str",Boolean.valueOf(!obj.getCollection().isEmpty()));
  props.put("String_Node_Str",Boolean.valueOf(obj.getId() > 1));
  props.put("String_Node_Str",Boolean.valueOf(obj.getId() == 1));
  props.put("String_Node_Str",Boolean.valueOf(obj.getId() != 1));
  props.put("String_Node_Str",Boolean.valueOf(obj.getId() == 1));
  props.put("String_Node_Str",new Integer(obj.getId() % 2));
  props.put("String_Node_Str",obj.getMyArray()[0] + "String_Node_Str" + obj.getMyArray()[1]);
  props.put("String_Node_Str",dateFormat.format(obj.getDate()));
  props.put("String_Node_Str",obj.printIt());
  props.put("String_Node_Str",obj.getName());
  props.put("String_Node_Str",obj.echo("String_Node_Str"));
  CellsChecker checker=new CellsChecker(props);
  checker.checkSection(sourceSheet,resultSheet,0,0,(short)0,(short)1,25,false,false);
  props.clear();
  props.put("String_Node_Str","String_Node_Str");
  checker.checkListCells(sourceSheet,25,resultSheet,25,(short)1,new String[]{((Bean.InnerBean)bean.getCollection().get(0)).getInnerCollection().get(0).toString(),((Bean.InnerBean)bean.getCollection().get(1)).getInnerCollection().get(0).toString(),((Bean.InnerBean)bean.getCollection().get(2)).getInnerCollection().get(0).toString()});
  saveWorkbook(resultWorkbook,jexlDestXLS);
}