public void setSecurityGroupIds(java.util.Collection<String> securityGroupIds) {
        if (securityGroupIds == null) {
            this.securityGroupIds = null;
            return;
        }

        this.securityGroupIds = new com.amazonaws.internal.SdkInternalList<String>(securityGroupIds);
    }
<p>
The new list of VPC security groups to be associated with the serverless cache. Populating this list means the
current VPC security groups will be removed. This security group is used to authorize traffic access for the VPC
end-point (private-link). Default = NULL - the existing list of VPC security groups is not removed.
</p>

@param securityGroupIds
       The new list of VPC security groups to be associated with the serverless cache. Populating this list means
       the current VPC security groups will be removed. This security group is used to authorize traffic access
       for the VPC end-point (private-link). Default = NULL - the existing list of VPC security groups is not
       removed.
aws-java-sdk-elasticache/src/main/java/com/amazonaws/services/elasticache/model/ModifyServerlessCacheRequest.java