<core:FragmentDefinition
        xmlns="sap.m" xmlns:core="sap.ui.core">
    <Popover
            id="headEndItemsOverflow"
            placement="Bottom"
            showHeader="false"
            showArrow="true"
            class="sapUshellPopupContainer sapUiSizeCompact"
            afterClose=".destroyHeadEndItemsOverflow">
       <content>
           <List
                class="sapUshellPopoverList"
                showSeparators="None"
                items="{
                    path: '/headEndItems',
                    filters: {
                        path: '',
                        test: '.isHeadEndItemInOverflow'
                    },
                    factory: '.headEndItemsOverflowItemFactory'
                }"
            />
       </content>
    </Popover>
</core:FragmentDefinition>