[External] : JNI_OnLoad and other native code uses JNI_VERSION_1_2

[Marius Hanl]

Hi all,

I did some experiments with GraalVM recently and got to a point where I 
got the following exception:

Caused by: java.lang.UnsatisfiedLinkError: Unsupported JNI version 
0x10002, required by glass

I then saw that there are still some locations in our code, e.g. 
native-class\win\Utils.cpp where we return JNI_VERSION_1_2 on JNI_OnLoad 
or use it in jvm->GetEnv(&env, JNI_VERSION_1_2);.

It looks like that this does not work anymore on JDK-25. I updated it to 
JNI_VERSION_1_8 and it worked again for me. Does it make sense to bump 
it everywhere to JNI_VERSION_1_8? Is there any downside in not doing 
that? Is there more I need to know?

I can create an issue and a PR, but want to gather more information 
about this first.

-- Marius