Eclipse RCP - Add submenu to existing file menu

Question

I want to add submenu to existing file menu. I tried below:

<extension
         point="org.eclipse.ui.menus">
       <menuContribution
            allPopups="false"
            locationURI="menu:org.eclipse.ui.file?after=additions ">
         <command
               commandId="com.my.home.handler.MyHandler"
               id="myTrams"
               label="TRAMS"
               style="push">
         </command>
      </menuContribution>
   </extension>

Can someone help to add submenu to existing file menu using plugin.xml? Thanks in advance.

Answer 1

The menu id for the File menu is just file not 'org.eclipse.ui.file'

For example this is the menu contribution for 'File > Restart':

<menuContribution
        locationURI="menu:file?after=open.ext">
     <command
           commandId="org.eclipse.ui.file.restartWorkbench"
           id="org.eclipse.ui.file.restartWorkbench"
           style="push">
     </command>
</menuContribution>

Answer 2

将locationURI更正为locationURI =“ menu：file？after = additions”。