menu.appendToGroup(GROUP_FOCUS, fCopyAction);
    protected void fillCallHierarchyViewerContextMenu(IMenuManager menu) {        JavaPlugin.createStandardGroups(menu);        menu.appendToGroup(IContextMenuConstants.GROUP_SHOW, fRefreshAction);        menu.appendToGroup(IContextMenuConstants.GROUP_SHOW, new Separator(GROUP_FOCUS));        if (fFocusOnSelectionAction.canActionBeAdded()) {            menu.appendToGroup(GROUP_FOCUS, fFocusOnSelectionAction);        }        fActionGroups.setContext(new ActionContext(getSelection()));        fActionGroups.fillContextMenu(menu);        fActionGroups.setContext(null);    }