void () { Object prototype; if ((listRenderer != null) && (listRenderer.getUserRenderer() == null)) { prototype = choicesList.getPrototypeCellValue(); // we need to change the prototype. The jlist will not update its // cell height if the prototype does not change prototype = "X".equals(prototype) ? "Z" : "X"; //NON-NLS } else { prototype = null; } choicesList.setPrototypeCellValue(prototype); historyList.setPrototypeCellValue(prototype); }