public String getGroupName() {
        return this.groupName;
    }
<p>
[Default VPC] The name of the security group. You must specify either the security group ID or the security group
name. For security groups in a nondefault VPC, you must specify the security group ID.
</p>

@return [Default VPC] The name of the security group. You must specify either the security group ID or the
        security group name. For security groups in a nondefault VPC, you must specify the security group ID.
aws-java-sdk-ec2/src/main/java/com/amazonaws/services/ec2/model/UpdateSecurityGroupRuleDescriptionsIngressRequest.java