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

        this.dBSecurityGroups = new com.amazonaws.internal.SdkInternalList<String>(dBSecurityGroups);
    }
<p>
A list of DB security groups to associate with this DB instance.
</p>
<p>
Default: The default DB security group for the database engine.
</p>

@param dBSecurityGroups
       A list of DB security groups to associate with this DB instance.</p>
       <p>
       Default: The default DB security group for the database engine.
aws-java-sdk-rds/src/main/java/com/amazonaws/services/rds/model/RestoreDBInstanceFromS3Request.java