public java.util.List<SubnetMapping> getSubnetMappings() {
        return subnetMappings;
    }
<p>
The public subnets that Network Firewall is using for the firewall. Each subnet must belong to a different
Availability Zone.
</p>

@return The public subnets that Network Firewall is using for the firewall. Each subnet must belong to a
        different Availability Zone.
aws-java-sdk-networkfirewall/src/main/java/com/amazonaws/services/networkfirewall/model/Firewall.java