public String getExpectedFirewallSubnetId() {
        return this.expectedFirewallSubnetId;
    }
<p>
The expected subnet ID for the firewall.
</p>

@return The expected subnet ID for the firewall.
aws-java-sdk-fms/src/main/java/com/amazonaws/services/fms/model/NetworkFirewallInvalidRouteConfigurationViolation.java