boolean kafkaComplete(T value) {
        return super.complete(value);
    }
Completes this future normally. For internal use by the Kafka clients, not by user code.
@param value the result value
@return {@code true} if this invocation caused this CompletableFuture
to transition to a completed state, else {@code false}
clients/src/main/java/org/apache/kafka/common/internals/KafkaCompletableFuture.java