public java.util.List<String> getVpcSecurityGroupIds() {
        if (vpcSecurityGroupIds == null) {
            vpcSecurityGroupIds = new com.amazonaws.internal.SdkInternalList<String>();
        }
        return vpcSecurityGroupIds;
    }
<p>
A list of Amazon EC2 VPC security groups to associate with the read replica.
</p>
<p>
This setting doesn't apply to RDS Custom DB instances.
</p>
<p>
Default: The default EC2 VPC security group for the DB subnet group's VPC.
</p>

@return A list of Amazon EC2 VPC security groups to associate with the read replica.</p>
        <p>
        This setting doesn't apply to RDS Custom DB instances.
        </p>
        <p>
        Default: The default EC2 VPC security group for the DB subnet group's VPC.
aws-java-sdk-rds/src/main/java/com/amazonaws/services/rds/model/CreateDBInstanceReadReplicaRequest.java