z2-Environment

    private static byte[] toBytes(Serializable object) {
        try {
            try (ByteArrayOutputStream ba = new ByteArrayOutputStream()) {
                try (ObjectOutputStream oo = new ObjectOutputStream(ba)) {
                    oo.writeObject(object);
                }
                return ba.toByteArray();
            }
        } catch (IOException ioe) {
            throw new RuntimeException(ioe);
        }
    }

    private static <C> C fromBytes(byte[] bytes, Class<C> clz) {
        try {
            try (ByteArrayInputStream ba = new ByteArrayInputStream(bytes)) {
                try (ObjectInputStream oi = new ObjectInputStream(ba) {
                    boolean first=true;
                    protected java.lang.Class<?> resolveClass(java.io.ObjectStreamClass desc) throws IOException ,ClassNotFoundException {
                        if (first) {
                            first = false;
                            // safeguard: First load must be the expected class 
                            if (!desc.getName().equals(clz.getName())) {
                                throw new IllegalArgumentException("Only class "+clz.getName()+" may be deserialized at this time");
                            }
                        }
                        return super.resolveClass(desc);
                    };
                }) {
                    return clz.cast(oi.readObject());
                }
            }
        } catch (ClassNotFoundException | IOException e) {
            throw new RuntimeException(e);
        }
    }

    private final static Logger logger = Logger.getLogger(JSONHelper.class.getName());
}