I have been partially successful at removing almost all the popUp menus from the Commons Navigator Framework simply by configuring the `plugin.xml` file.  

There are 2 menus that refuse to go: 

* `group.edit` and
* `group.reorganize`.

My `plugin.xml` config looks like this:

```xml
<extension
          point="org.eclipse.ui.navigator.viewer">
       <viewer
             viewerId="org.eclipse.ui.example.navigator.view">
             <popupMenu allowsPlatformContributions="false">
                <insertionPoint
                    name="group.edit" />

                <insertionPoint
                    name="group.reorganize" />
             </popupMenu>
       </viewer>
       <viewerContentBinding
             viewerId="org.eclipse.ui.thermo.navigator.view">
          <includes>
             <contentExtension
                   pattern="org.eclipse.ui.navigator.resourceContent"/>
          </includes>
       </viewerContentBinding> 
</extension>

```

Setting the `allowsPlatformContribution` to false DOES stop contributions to be added to the context menu *except* for `group.edit` and `group.reorganize`... this is starting to look like a bug to me.

The obvious solution is to remove the insertion points from my `<popUpMenu>` but without them the application throws an exception:

```
Throwable: java.lang.IllegalArgumentException: Group not found: group.edit

java.lang.IllegalArgumentException: Group not found: group.edit
at org.eclipse.jface.action.ContributionManager.addToGroup(ContributionManager.java:131)
at org.eclipse.jface.action.ContributionManager.appendToGroup(ContributionManager.java:138)
at org.eclipse.ui.internal.navigator.resources.actions.EditActionGroup.fillContextMenu(EditActionGroup.java:74)
at org.eclipse.ui.internal.navigator.resources.actions.EditActionProvider.fillContextMenu(EditActionProvider.java:50)
at org.eclipse.ui.navigator.NavigatorActionService.addCommonActionProviderMenu(NavigatorActionService.java:205)
at org.eclipse.ui.navigator.NavigatorActionService.fillContextMenu(NavigatorActionService.java:172)
at org.eclipse.ui.internal.navigator.CommonNavigatorManager.fillContextMenu(CommonNavigatorManager.java:258)
at org.eclipse.ui.internal.navigator.CommonNavigatorManager$4.menuAboutToShow(CommonNavigatorManager.java:273)
at org.eclipse.jface.action.MenuManager.fireAboutToShow(MenuManager.java:335)
at org.eclipse.jface.action.MenuManager.handleAboutToShow(MenuManager.java:463)
at org.eclipse.jface.action.MenuManager.access$1(MenuManager.java:459)
at org.eclipse.jface.action.MenuManager$2.menuShown(MenuManager.java:485)

```

It throws the same exception for the reorganize group.