plugin.xml

<?xml version="1.0" encoding="UTF-8"?>
<?eclipse version="3.2"?>
<plugin>
   <extension point="org.eclipse.ui.popupMenus">
      <objectContribution
            objectClass="org.eclipse.core.resources.IResource"
            id="com.apex.doc.contribution1">
         <menu
               label="%menu.label.0"
               path="additions"
               id="com.salesforce.ide.ui.menu.tools">
            <separator name="group2" />
         </menu>
         <action
               label="%action.label.0"
               class="com.apex.doc.popup.actions.AppStart"
               menubarPath="com.salesforce.ide.ui.menu.tools/group2"
               enablesFor="1"
               id="com.apex.doc.newAction">
         </action>
      </objectContribution>
   </extension>
</plugin>