performance - Java Swing - Best Practice - Add/Remove Panels Frequently -

i have swing-ui sub panel contains list of persons (within scroll pane). each person represented jpanel consists of imageicon , 4 jlabels.

the list behaves circular buffer (with additional conditional behavior) , can changed via 2 buttons can 'rotate' list , forth.

e.g. forward: [a][b][c][d] -> [b][c][d][a] 

it contains around 15 persons, yet can added , removed within part of ui - calls update on panel well.

my current solution remove elements scroll pane-panel , re-add elements (in new order) after user has clicked on 1 of buttons.

unfortunately takes quite lot of time. imageicons cached - person-jpanels if person in list before, part takes time re-adding of said elements.

so question if done in more efficient way.

my current solution remove elements scroll pane-panel , re-add elements

the container api has method allows add component @ location in panel. remove panel end , place @ start, basic logic like:

jpanel removed = panel.getcomponent( panel.getcomponentcount() - 1); panel.remove(removed); panel.add(removed, 0); panel.revalidate(); panel.repaint();