Field aeskeySpec_field = AES.class.getDeclaredField("aeskeySpec");
aeskeySpec_field.setAccessible(true);
aeskeySpec_field.set(aes, null);
Field aeskeySpec_field = AES.class.getDeclaredField("aeskeySpec");
aeskeySpec_field.setAccessible(true);
aeskeySpec_field.set(aes, null);