ConsumerBuilder extends AbstractReferenceBuilder<ConsumerConfig, ConsumerBuilder> { public ConsumerBuilder threads(Integer threads) { this.threads = threads; return getThis(); }  ConsumerBuilder isDefault(Boolean isDefault); ConsumerBuilder client(String client); ConsumerBuilder threadPool(String threadPool); ConsumerBuilder coreThreads(Integer coreThreads); ConsumerBuilder threads(Integer threads); ConsumerBuilder queues(Integer queues); ConsumerBuilder shareConnections(Integer shareConnections); ConsumerConfig build();  }
@Test void threads() { ConsumerBuilder builder = new ConsumerBuilder(); builder.threads(100); Assertions.assertEquals(100, builder.build().getThreads()); }