public java.util.List<String> getSecurityGroupIds() {
        if (securityGroupIds == null) {
            securityGroupIds = new com.amazonaws.internal.SdkInternalList<String>();
        }
        return securityGroupIds;
    }
<p>
(Interface endpoint) The IDs of the security groups to associate with the endpoint network interfaces. If this
parameter is not specified, we use the default security group for the VPC.
</p>

@return (Interface endpoint) The IDs of the security groups to associate with the endpoint network interfaces. If
        this parameter is not specified, we use the default security group for the VPC.
aws-java-sdk-ec2/src/main/java/com/amazonaws/services/ec2/model/CreateVpcEndpointRequest.java