filtrar e mapear vários campos do fluxo Java

// Note that you shouldn't normally use == on objects
Predicate<Detail> itemPredicate = d-> item.equals(d.getItem());
Predicate<Detail> namePredicate = d-> name.equals(d.getName());

details.stream()
    .filter(itemPredicate.and(namePredicate))
    .collect(Collectors.toList());
Smiling Starling