Default interface methods causing problems with java 17 and groovy 3.0.9

I'm trying to migrate a project to build on JDK17 and in that project we use groovy and spock for testing. It seems that groovy 3.* has a problem with reflection access to JDK especially visible when using closures
A simple test class:

static void main(String[] args) {
    def predicate = {true} as java.util.function.Predicate
    predicate.negate()
    println "i don't work!! :("
} 

Produces

java.lang.IllegalAccessException: module jdk.proxy1 does not open jdk.proxy1 to unnamed module @43517800

In line

predicate.negate() 

.negate() being a default method in a Predicate interface which a part of the jdk

The following however works:

static void main(String[] args) {
    def predicate = new Predicate() {
        @Override
        boolean test(Object o) {
            true
        }
    }
    predicate.negate()
    println "i work!! :)"
} 

I'm using JDK 17.0.1 Corretto for my tests and the example minimal project can be found here:
https://github.com/lukaszpierog/jdk17-groovy3

The above code works with groovy 4.0.0-beta-2. Spock does not support groovy 4 at this moment, so upgrading groovy to 4 isn't an option for me and it seems to only be a beta release at the moment.

I've tried adding jvm args 

--add-opens=java.base/java.lang.invoke=ALL-UNNAMED
however that does not seem to affect the output

Please advise