public Map<String, Object> build(SelectionEvent evt, Map<String, Object> data) { AuUtility.setEssential(data, "start", evt.getStart()); AuUtility.setEssential(data, "end", evt.getEnd()); AuUtility.setEssential(data, "selected", evt.getSelectedText()); return data; } public Class<SelectionEvent> getEventClass(){