Bug 114648 export file system/archive wizard initally has error when no selection seeded
Make sure nothing is selected in your Navigator or Package Explorer. File > Import/Export Select Archive or File System BUG: there is initially an error - There are no resources currently selected for export. There should not initially be an error in these wizards.
bundles/org.eclipse.ui.ide/extensions/org/eclipse/ui/dialogs/WizardResourceImportPage.java
}
    /**
     * The <code>WizardResourceImportPage</code> implementation of this 
     * <code>Listener</code> method handles all events and enablements for controls
     * on this page. Subclasses may extend.
     * @param event Event
     */
    public void handleEvent(Event event) {
        Widget source = event.widget;
        if (source == containerBrowseButton)
            handleContainerBrowseButtonPressed();
        updateWidgetEnablements();
    }
    /**
     *	Open a registered type selection dialog and note the selections
     *	in the receivers types-to-export field
     */
    protected void handleTypesEditButtonPressed() {
        TypeFilteringDialog dialog = new TypeFilteringDialog(getContainer()
                .getShell(), getTypesToImport());
        dialog.open();
        Object[] newSelectedTypes = dialog.getResult();
        if (newSelectedTypes != null) { 
            this.selectedTypes = new ArrayList(newSelectedTypes.length);
            for (int i = 0; i < newSelectedTypes.length; i++)
                this.selectedTypes.add(newSelectedTypes[i]);
            setupSelectionsBasedOnSelectedTypes();
        }
    }
    /**