private List<? extends HandlerInterceptor> getHandlerInterceptors() {
        if (this.delegate != null) {
            return Optional.ofNullable(delegate.getIfAvailable()).map(List::of).orElseGet(List::of);
        }
        return this.delegateSupplier.get();
    }
This is {@link RefreshableHandlerInterceptor}.

@author Misagh Moayyed
@since 6.5.0
core/cas-server-core-util-api/src/main/java/org/apereo/cas/util/spring/RefreshableHandlerInterceptor.java