Java module system: "access to public member failed" when using 'opens' x to 'y'

**Describe the bug**
Allowing runtime-only access to a package by org.eclipse.yasson is not working.
I have a module-info file containing the following statement:

`opens nl.scuro.media.model to org.eclipse.yasson;`

This should allow Yasson to be able to read this package when (de)serializing. Unfortunately, I get an error:

```
Caused by: java.lang.IllegalAccessException: access to public member failed: nl.scuro.media.model.MediaRefClientWrapper.getMediaRef[Ljava.lang.Object;@6af6a361/invokeVirtual, from public Lookup
at java.base/java.lang.invoke.MemberName.makeAccessException(MemberName.java:955)
```

I can work around this by exporting my package:
`exports nl.scuro.media.model;`

But I there are scenarios where one doesn't want to export globally.

**To Reproduce**
Create a simple project with a module-info file and package containing a POJO.
Add Yasson as a dependency and _open_ this package _to_ org.eclipse.yasson.

**Expected behavior**
I would expect Yasson to be able to access all classes in the _opened_ package.

**System information:**
- OS: Linux
- Java Version: 17
- Yasson Version: 2.0.4

**Additional context**
While I'm not very experienced with the module system yet, this seems to be incorrect behavior.