ContextMenu - how to find out the selected (clicked) item

In Vaadin 7, how can I find the selected (clicked) item from ContextMenu?
I think I need to add ContextMenuItemClickListener and implement contextMenuItemClicked.
Any example to find out the selected (clicked) menu item?

I implemented the item specific click listeners.

For anyone interested,

ContextMenu m_contextmenu = new ContextMenu();
ContextMenuItem aMenuItem1 = m_contextmenu.addItem(“menu1”);
ContextMenuItem aMenuItem2 = m_contextmenu.addItem(“menu2”);

aMenuItem1.addItemClickListener(new ContextMenuItemClickListener() {
public void contextMenuItemClicked(ContextMenuItemClickEvent event) {
// your code here for menu1
}
});

aMenuItem2.addItemClickListener(new ContextMenuItemClickListener() {
public void contextMenuItemClicked(ContextMenuItemClickEvent event) {
// your code here for menu2
}
});