- SubshardProducerSpecification spec = affectedSubshards.get(maybeAffected.getPrefix());
- if (spec == null) {
- spec = new SubshardProducerSpecification(maybeAffected);
- affectedSubshards.put(maybeAffected.getPrefix(), spec);
- }
+ SubshardProducerSpecification spec = affectedSubshards.computeIfAbsent(maybeAffected.getPrefix(),
+ k -> new SubshardProducerSpecification(maybeAffected));