This method test an Object _o if is Objects::isNull and return Object _c if true or return Object _o.

_a.java

    /**
     * This method test an {@link Object} {@param _o} if is {@link Objects::isNull} and return {@link Object} {@param _c} if true or return {@link Object} {@param _o}.
     * @param _o Tested {@link Object}
     * @param _r Return If {@param _o} is {@link Objects::isNull}
     * @return _o Return If {@param _o} is !{@link Objects::isNull}
     */
    public static Object _a(Object _o, Object _r) {
        if (Objects.isNull(_o)) return _r;
        return _o;
    }