Object (@NotNull List<XBreakpoint> selected, @NonNls String dataId) { if (CommonDataKeys.NAVIGATABLE_ARRAY.is(dataId)) { List<Navigatable> navigatables = mapNotNull(selected, XBreakpoint::getNavigatable); if (!navigatables.isEmpty()) { return navigatables.toArray(Navigatable.EMPTY_NAVIGATABLE_ARRAY); } } return null; }