method handles and open packages

[Remi Forax]

Hi,

On July 21, 2018 3:43:51 PM UTC, "Michał Zegan" <webczat_200 at poczta.onet.pl> wrote:
>Hello,
>If I use reflection, I can access every member of every package in a
>module if a module opens such package, and that includes private
>members.
>What, however, about using method handles for that purpose?

https://docs.oracle.com/javase/9/docs/api/java/lang/invoke/MethodHandles.html#privateLookupIn-java.lang.Class-java.lang.invoke.MethodHandles.Lookup-

>Also, if you have a class in module a that wants to deserialize data to
>objects of classes in module b, then should module b open a package
>with
>those classes to a, or maybe, give the deserializer it's lookup object,
>in order for it to be able to access members of non exported non opened
>packages? It is for the case where the deserializer is called by the
>module b. Also I assume that I do not need access to non public members
>of classes, like I deserialize using public setters always.

Rémi



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