public void setItems(java.util.Collection<ExtensionSummary> items) {
        if (items == null) {
            this.items = null;
            return;
        }

        this.items = new java.util.ArrayList<ExtensionSummary>(items);
    }
<p>
The list of available extensions. The list includes Amazon Web Services authored and user-created extensions.
</p>

@param items
       The list of available extensions. The list includes Amazon Web Services authored and user-created
       extensions.
aws-java-sdk-appconfig/src/main/java/com/amazonaws/services/appconfig/model/ListExtensionsResult.java