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

        this.activeNames = new java.util.ArrayList<String>(activeNames);
    }
<p>
The list of active names returned by the get active names request.
</p>

@param activeNames
       The list of active names returned by the get active names request.
aws-java-sdk-lightsail/src/main/java/com/amazonaws/services/lightsail/model/GetActiveNamesResult.java