Simplistic utility class loads scripts into Java interfaces

ScriptObjectLoader.java

public class ScriptObjectLoader {

    public static ScriptEngineManager scriptEngineManager;
    public static ScriptEngine engine;
    
    static {
        scriptEngineManager = new ScriptEngineManager();
        engine = scriptEngineManager.getEngineByName("JavaScript"); //Or whatever
    }
    
    /**
     * Loads and wraps a script in an interface.
     * 
     * Usage example: 
     * 
     * MyInterface foo = ScriptObjectLoader.<MyInterface>loadScript(MyInterface.class,scriptInputStream);
     * 
     * @param <T> The interface to wrap this script object with
     * @param type The interface class
     * @param scriptInputStream
     * @return
     */
    static public <T> T loadScript(Class<? extends T> type, InputStream scriptInputStream) {
        try {
            BufferedReader reader = new BufferedReader(new InputStreamReader(scriptInputStream));
            return ((Invocable)engine).getInterface(engine.eval(reader), type);
        }
        catch(ScriptException e) {
            //TODO : Handle this appropriately!
            e.printStackTrace();
            return null;
        }
    }
}