Bug 94456 [Undo] - Resource Navigator not showing workspace undo actions
The Resource Navigator is not showing the workspace undo actions. Package Explorer is correctly working. Need to look at the difference in the way the action handlers are set up.
bundles/org.eclipse.ui.ide/src/org/eclipse/ui/views/navigator/ResourceNavigator.java
sortType = sortInt;
        } catch (NumberFormatException e) {
        }
        setSorter(new ResourceSorter(sortType));
    }
    /**
     * Restores the working set filter from the persistence store.
     */
    void initWorkingSetFilter() {
        String workingSetName = settings.get(STORE_WORKING_SET);
        if (workingSetName != null && workingSetName.equals("") == false) { 
            IWorkingSetManager workingSetManager = getPlugin().getWorkbench()
                    .getWorkingSetManager();
            IWorkingSet workingSet = workingSetManager
                    .getWorkingSet(workingSetName);
            if (workingSet != null) {
                
                
                
                workingSetFilter.setWorkingSet(workingSet);
            }
        }
    }
    /**
     * Returns whether the navigator selection automatically tracks the active
     * editor.
     *
     * @return <code>true</code> if linking is enabled, <code>false</code> if not  
     * @since 2.0 (this was protected in 2.0, but was made public in 2.1)
     */