How can I refactor this function? I show a list of plugins in JSF, and I should filter them. I added function `filterPlugins` but I have some questions:

 1. Should we simplify block with conditional expression?
 2. I reassign global variable "plugins" to introduce my filter function (is it not bad practice?)

<!--- --->

    @NotNull
    @DataModel("plugins")
    List<Plugin> plugins;

    public void load() {
        plugins = pluginManager.getPlugins();

        plugins = filterPlugins(searchParam);
        
        SortingUtil.sort(plugins, SortingUtil.SortType.ID_ASC);
        if (plugins.size() > 0) {
            if (plugin != null && plugins.contains(plugin)) {
                selectPlugin(plugin);
            } else {
                selectPlugin(plugins.get(0));
            }
        } else {
            plugin = null;
        }
    }

    @SuppressWarnings("unchecked")
    private List<Plugin> filterPlugins(final String searchParam ){
          return (List)Iterables.filter(plugins, new Predicate<Plugin>() {
            @Override
            public boolean apply(@Nullable Plugin plugin) {
                return  plugin.getName().contains(searchParam)
                        || plugin.getNetworkClasses().contains(searchParam)
                        || plugin.getClassName().contains(searchParam);
            }
        });
    }