public static void main(String[] args) {
        try {
            sneakyThrow(new IOException("io"));
            Test.<IOException>emulateThrows();
        } catch (IOException e) {
            e.printStackTrace();
        }
    }

    static void sneakyThrow(Throwable e) {
        Test.<RuntimeException>sneakyThrow2(e);
    }

    private static <E extends Throwable> void sneakyThrow2(Throwable e) throws E {
        @SuppressWarnings("unchecked") E e1 = (E) e;
        throw e1;
    }

    static <E extends Exception> void emulateThrows() throws E {
    }