com_baeldung_reactor_core_CombiningPublishersIntegrationTest_java
reactor.core.publisher.FluxConcatArray$ConcatArraySubscriber
 -> java.util.concurrent.atomic.AtomicLongFieldUpdater.get(java.lang.Object): long -> java.util.concurrent.atomic.AtomicLongFieldUpdater.compareAndSet(java.lang.Object,long,long): boolean -> java.util.concurrent.atomic.AtomicIntegerFieldUpdater.compareAndSet(java.lang.Object,int,int): boolean -> java.util.concurrent.atomic.AtomicIntegerFieldUpdater.decrementAndGet(java.lang.Object): int