what's the most maintainable? ;")

Java7.java

for (...) {
  Class found = null;

  for (Class i: bc.getInterfaces()) {
      if (i == requestClass) {
          success.add(new RetrievedBinding(requestClass, bc.getInstance(), bd.named(), bd.singleton()));
          found = i;
          break;
      }
  }

  if (found != null) break;
}

Java8.java

 for (...) {
    if (bc.getInterfaces().stream()
          .filter(i -> i == requestClass).findFirst()
          .map(i -> success.add(new RetrievedBinding(requestClass, bc.getInstance(), bd.named(), bd.singleton())))
          .isPresent())
    break;
 }