Stocker une HashMap

C'est ok...
Code:
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    private Blob serialise(Object object) {
        ByteArrayOutputStream f_out = new ByteArrayOutputStream();
        try {
            ObjectOutputStream obj_out = new ObjectOutputStream(f_out);
            obj_out.writeObject (object);
        } catch (IOException e) {
            // TODO Auto-generated catch block
            e.printStackTrace();
        }
        byte[] arr= f_out.toByteArray();
        Blob blob = Hibernate.createBlob(arr);
        return blob;
    }
 
    private HashMap<String,String> deserialise(Blob blob) {
 
        HashMap<String, String> map = null;
        try {
            ByteArrayInputStream in = (ByteArrayInputStream) blob.getBinaryStream();
            ObjectInputStream in_o = new ObjectInputStream(in);
            map = (HashMap<String,String>)in_o.readObject();
        } catch (IOException e) {
            // TODO Auto-generated catch block
            e.printStackTrace();
        } catch (ClassNotFoundException e) {
            // TODO Auto-generated catch block
            e.printStackTrace();
        } catch (SQLException e) {
            // TODO Auto-generated catch block
            e.printStackTrace();
        }
        return map;
    }