makeUniqueAndValid( );
	protected void checkBoxChange( Button checkBox, String key )	{		dirtyProperties.put( key, new Boolean( checkBox.getSelection( ) ) );		if ( CHECKBOX_ALLOW_BLANK.equals( key )				|| CHECKBOX_ALLOW_NULL.equals( key ) )		{			if ( isStatic( ) )			{				refreshValueTable( );			}			updateMessageLine( );		}	}