public KafkaFuture<Void> all() {
        return KafkaFuture.allOf(futures.values().toArray(new KafkaFuture[0]));
    }
Get a future which completes when the transaction specified by {@link AbortTransactionSpec}
in the respective call to {@link Admin#abortTransaction(AbortTransactionSpec, AbortTransactionOptions)}
returns successfully or fails due to an error or timeout.

@return the future
clients/src/main/java/org/apache/kafka/clients/admin/AbortTransactionResult.java