public void setFirewallArn(String firewallArn) {
        this.firewallArn = firewallArn;
    }
<p>
The Amazon Resource Name (ARN) of the firewall.
</p>

@param firewallArn
       The Amazon Resource Name (ARN) of the firewall.
aws-java-sdk-networkfirewall/src/main/java/com/amazonaws/services/networkfirewall/model/Firewall.java