public void setSites(java.util.Collection<Site> sites) {
        if (sites == null) {
            this.sites = null;
            return;
        }

        this.sites = new java.util.ArrayList<Site>(sites);
    }
<p>
The sites.
</p>

@param sites
       The sites.
aws-java-sdk-networkmanager/src/main/java/com/amazonaws/services/networkmanager/model/GetSitesResult.java