src/main/java/org/efaps/ui/wicket/request/EFapsResourceAggregator.java
@Override
    public void render(final HeaderItem _item)
    {
        if (_item instanceof OnDojoReadyHeaderItem) {
            this.dojoReadyItems.add((OnDojoReadyHeaderItem) _item);
        } else if (_item instanceof AbstractEFapsHeaderItem) {
            this.eFapsHeaderItems.add((AbstractEFapsHeaderItem) _item);
        } else if (_item instanceof AutoCompleteHeaderItem) {
            this.autoCompleteItems.add((AutoCompleteHeaderItem) _item);
        } else if (_item instanceof RequireHeaderItem) {
            this.requireHeaderItems.add((RequireHeaderItem) _item);
        } else {
            super.render(_item);
        }
    }
@Override
    public void render(final HeaderItem _item)
    {
        if (_item instanceof OnDojoReadyHeaderItem) {
            this.dojoReadyItems.add((OnDojoReadyHeaderItem) _item);
        } else if (_item instanceof AbstractEFapsHeaderItem) {
            this.eFapsHeaderItems.add((AbstractEFapsHeaderItem) _item);
        } else if (_item instanceof AutoCompleteHeaderItem) {
            this.autoCompleteItems.add((AutoCompleteHeaderItem) _item);
        } else if (_item instanceof RequireHeaderItem) {
            this.requireHeaderItems.add((RequireHeaderItem) _item);
        } else {
            super.render(_item);
        }
    }
Renders the given {@link HeaderItem} to the response if none of the
{@linkplain HeaderItem#getRenderTokens() tokens} of the item has been rendered before.

@param _item  The item to render.