Method invoke

java/jakarta/el/OptionalELResolver.java:210–225

{@inheritDoc} @return If the base object is an Optional and Optional#isEmpty() returns true then this method returns null. If the base object is an Optional and Optional#isPresent() returns true then

(ELContext context, Object base, Object method, Class<?>[] paramTypes, Object[] params)

     *             If the base object is not an {@link Optional} then the return value is undefined.
     */
    @Override
    public Object invoke(ELContext context, Object base, Object method, Class<?>[] paramTypes, Object[] params) {
        Objects.requireNonNull(context);

        if (base instanceof Optional && method != null) {
            context.setPropertyResolved(base, method);
            if (((Optional<?>) base).isEmpty()) {
                return null;
            } else {
                Object resolvedBase = ((Optional<?>) base).get();
                return context.getELResolver().invoke(context, resolvedBase, method, paramTypes, params);
            }
        }

        return null;
    }
}