groupHandle = getListEditPart( ).insertGroup( );
retValue = getListEditPart( ).insertGroup( );
	public void run( )	{		CommandStack stack = getActiveCommandStack( );		stack.startTrans( STACK_MSG_ADD_GROUP );		GroupHandle groupHandle = null;		if ( getTableEditPart( ) != null )		{			groupHandle = getTableEditPart( ).insertGroup( );		}		else		{			groupHandle = getListEditPart( ).insertGroup( );		}		GroupDialog dialog = new GroupDialog( PlatformUI.getWorkbench( )				.getDisplay( )				.getActiveShell( ) );		dialog.setDataSetList( DEUtil.getDataSetList( groupHandle ) );		dialog.setInput( groupHandle );		if ( dialog.open( ) == Window.OK )		{			try			{				stack.commit( );			}			catch ( Exception e )			{				stack.rollbackAll( );				ExceptionHandler.handle( e );			}		}		else		{			stack.rollbackAll( );		}	}