public java.util.List<String> getReplicaAvailabilityZones() {
        if (replicaAvailabilityZones == null) {
            replicaAvailabilityZones = new com.amazonaws.internal.SdkInternalList<String>();
        }
        return replicaAvailabilityZones;
    }
<p>
A list of Availability Zones to be used for the read replicas. The number of Availability Zones in this list must
match the value of <code>ReplicaCount</code> or <code>ReplicasPerNodeGroup</code> if not specified.
</p>

@return A list of Availability Zones to be used for the read replicas. The number of Availability Zones in this
        list must match the value of <code>ReplicaCount</code> or <code>ReplicasPerNodeGroup</code> if not
        specified.
aws-java-sdk-elasticache/src/main/java/com/amazonaws/services/elasticache/model/NodeGroupConfiguration.java