Program: 78263
Project: 78263
Buggy source:
protected static void insertToCell(TableHandle tableHandle,SlotHandle slot,ResultSetColumnHandle[] columns,boolean isLabel){
  for (int i=0; i < slot.getCount(); i++) {
    SlotHandle cells=((RowHandle)slot.get(i)).getCells();
    for (int j=0; j < cells.getCount(); j++) {
      CellHandle cell=(CellHandle)cells.get(j);
      try {
        if (isLabel) {
          LabelHandle labelItemHandle=SessionHandleAdapter.getInstance().getReportDesignHandle().getElementFactory().newLabel(null);
          labelItemHandle.setText(columns[j].getColumnName());
          cell.addElement(labelItemHandle,cells.getSlotID());
        }
 else {
          DataItemHandle dataHandle=SessionHandleAdapter.getInstance().getReportDesignHandle().getElementFactory().newDataItem(null);
          dataHandle.setResultSetColumn(columns[j].getColumnName());
          cell.addElement(dataHandle,cells.getSlotID());
          ComputedColumn bindingColumn=StructureFactory.newComputedColumn(tableHandle,columns[j].getColumnName());
          bindingColumn.setDataType(columns[j].getDataType());
          bindingColumn.setExpression(DEUtil.getExpression(columns[j]));
          tableHandle.addColumnBinding(bindingColumn,false);
        }
      }
 catch (      Exception e) {
        ExceptionHandler.handle(e);
      }
    }
  }
}

Fixed version (ground truth):
protected static void insertToCell(DataSetHandle model,TableHandle tableHandle,SlotHandle slot,ResultSetColumnHandle[] columns,boolean isLabel){
  for (int i=0; i < slot.getCount(); i++) {
    SlotHandle cells=((RowHandle)slot.get(i)).getCells();
    for (int j=0; j < cells.getCount(); j++) {
      CellHandle cell=(CellHandle)cells.get(j);
      try {
        if (isLabel) {
          LabelHandle labelItemHandle=SessionHandleAdapter.getInstance().getReportDesignHandle().getElementFactory().newLabel(null);
          if (columns[j].getColumnName() != null) {
            boolean hasDisplayName=false;
            for (Iterator iter=model.columnHintsIterator(); iter.hasNext(); ) {
              ColumnHintHandle hint=(ColumnHintHandle)iter.next();
              if (columns[j].getColumnName().equals(hint.getColumnName())) {
                labelItemHandle.setText(hint.getDisplayName());
                hasDisplayName=true;
                break;
              }
            }
            if (!hasDisplayName) {
              labelItemHandle.setText(columns[j].getColumnName());
            }
          }
          cell.addElement(labelItemHandle,cells.getSlotID());
        }
 else {
          DataItemHandle dataHandle=SessionHandleAdapter.getInstance().getReportDesignHandle().getElementFactory().newDataItem(null);
          dataHandle.setResultSetColumn(columns[j].getColumnName());
          cell.addElement(dataHandle,cells.getSlotID());
          ComputedColumn bindingColumn=StructureFactory.newComputedColumn(tableHandle,columns[j].getColumnName());
          bindingColumn.setDataType(columns[j].getDataType());
          bindingColumn.setExpression(DEUtil.getExpression(columns[j]));
          tableHandle.addColumnBinding(bindingColumn,false);
        }
      }
 catch (      Exception e) {
        ExceptionHandler.handle(e);
      }
    }
  }
}