docs: @Override
  	public Class<?> getColumnClass(final int c)
  	{
  		try
  		{
  			return columnsModel.getColumnClasses()[c];
  		}
  		catch (Exception e)
  		{
  			log.log(Level.SEVERE, "Error occured on getting column class on index " + c + ".", e);
  		}
  		return null;
  	}